--- /dev/null
+# dev.boringcrypto branch
+
+We have been working inside Google on a fork of Go that uses
+BoringCrypto (the core of [BoringSSL][]) for various crypto
+primitives, in furtherance of some [work related to FIPS 140-2][sp].
+We have heard that some external users of Go would be interested in
+this code as well, so this branch holds the patches to make Go use
+BoringCrypto.
+
+[BoringSSL]: https://boringssl.googlesource.com/boringssl/
+[sp]: https://csrc.nist.gov/CSRC/media/projects/cryptographic-module-validation-program/documents/security-policies/140sp3678.pdf
+
+Unlike typical dev branches, we do not intend any eventual merge of
+this code into the master branch. Instead we intend to maintain in
+this branch the latest release plus BoringCrypto patches.
+
+To be clear, we are not making any statements or representations about
+the suitability of this code in relation to the FIPS 140-2 standard.
+Interested users will have to evaluate for themselves whether the code
+is useful for their own purposes.
pkg archive/zip, method (*ReadCloser) Open(string) (fs.File, error)
pkg archive/zip, method (*Reader) Open(string) (fs.File, error)
+pkg crypto/boring, func Enabled() bool
pkg crypto/x509, method (SystemRootsError) Unwrap() error
pkg debug/elf, const DT_ADDRRNGHI = 1879047935
pkg debug/elf, const DT_ADDRRNGHI DynTag
pkg crypto, const BLAKE2s_256 = 16
pkg crypto, const BLAKE2s_256 Hash
pkg crypto/x509, type Certificate struct, ExcludedDNSDomains []string
+pkg crypto/x509, type VerifyOptions struct, IsBoring func(*Certificate) bool
pkg database/sql, method (*Conn) BeginTx(context.Context, *TxOptions) (*Tx, error)
pkg database/sql, method (*Conn) Close() error
pkg database/sql, method (*Conn) ExecContext(context.Context, string, ...interface{}) (Result, error)
-branch: master
+branch: dev.boringcrypto
+parent-branch: master
--- /dev/null
+# README.md
+
+This directory holds build scripts for unofficial, unsupported
+distributions of Go+BoringCrypto.
+
+## Version strings
+
+The distribution name for a Go+BoringCrypto release has the form `<GoVersion>b<BoringCryptoVersion>`,
+where `<GoVersion>` is the Go version the release is based on, and `<BoringCryptoVersion>` is
+an integer that increments each time there is a new release with different BoringCrypto bits.
+The `<BoringCryptoVersion>` is stored in the `VERSION` file in this directory.
+
+For example, the first release is based on Go 1.8.3 is `go1.8.3b1`.
+If the BoringCrypto bits are updated, the next would be `go1.8.3b2`.
+If, after that, Go 1.9 is released and the same BoringCrypto code added to it,
+that would result in `go1.9b2`. There would likely not be a `go1.9b1`,
+since that would indicate Go 1.9 with the older BoringCrypto code.
+
+## Releases
+
+The `build.release` script prepares a binary release and publishes it in Google Cloud Storage
+at `gs://go-boringcrypto/`, making it available for download at
+`https://go-boringcrypto.storage.googleapis.com/<FILE>`.
+The script records each published release in the `RELEASES` file in this directory.
+
+The `build.docker` script, which must be run after `build.release`, prepares a Docker image
+and publishes it on hub.docker.com in the goboring organization.
+`go1.8.3b1` is published as `goboring/golang:1.8.3b1`.
+
+## Release process
+
+Development is done on the dev.boringcrypto branch, which tracks
+master. Releases are cut from dev.boringcrypto.go1.X branches,
+which are BoringCrypto backported to the Go 1.X release branches.
+To issue new BoringCrypto releases based on Go 1.X:
+
+1. If the BoringCrypto bits have been updated, increment the
+ number in `VERSION`, send that change out as a CL for review,
+ get it committed to dev.boringcrypto, and run `git sync`.
+
+2. Change to the dev.boringcrypto.go1.X branch and cherry-pick
+ all BoringCrypto updates, including the update of the
+ `VERSION` file. If desired, merge release-branch.go1.X into
+ dev.boringcrypto.go1.X. Mail them out and get them committed.
+
+3. **Back on the dev.boringcrypto branch**, run `git fetch`,
+ `make.bash` and then `build.release dev.boringcrypto.go1.X`.
+ The script will determine the base Go version and the
+ BoringCrypto version, build a release, and upload it.
+
+4. Run `build.docker`, which will build and upload a Docker image
+ from the latest release.
+
+5. Send out a CL with the updated `RELEASES` file and get it
+ committed to dev.boringcrypto.
+
+## Building from Docker
+
+A Dockerfile that starts with `FROM golang:1.8.3` can switch
+to `FROM goboring/golang:1.8.3b2` (see [goboring/golang on Docker Hub](https://hub.docker.com/r/goboring/golang/))
+and should need no other modifications.
+
+## Building from Bazel
+
+Starting from [bazelbuild/rules_go](https://github.com/bazelbuild/rules_go)
+tag 0.7.1, simply download the BoringCrypto-enabled Go SDK using
+`go_download_sdk()` before calling `go_register_toolchains()`.
+
+For example, to use Go 1.9.3 with BoringCrypto on Linux, use the following lines
+in `WORKSPACE`:
+```python
+load("@io_bazel_rules_go//go:def.bzl", "go_rules_dependencies", "go_download_sdk", "go_register_toolchains")
+
+go_rules_dependencies()
+
+go_download_sdk(
+ name = "go_sdk",
+ sdks = {
+ "linux_amd64": ("go1.9.3b4.linux-amd64.tar.gz", "db1997b2454a2f27669b849d2d2cafb247a55128d53da678f06cb409310d6660"),
+ },
+ urls = ["https://storage.googleapis.com/go-boringcrypto/{}"],
+)
+
+go_register_toolchains()
+```
+
+**Note**: you must *not* enable `pure` mode, since cgo must be enabled. To
+ensure that binaries are linked with BoringCrypto, you can set `pure = "off"` on
+all relevant `go_binary` rules.
+
+## Caveat
+
+BoringCrypto is used for a given build only in limited circumstances:
+
+ - The build must be GOOS=linux, GOARCH=amd64.
+ - The build must have cgo enabled.
+ - The android build tag must not be specified.
+ - The cmd_go_bootstrap build tag must not be specified.
+
+The version string reported by `runtime.Version` does not indicate that BoringCrypto
+was actually used for the build. For example, linux/386 and non-cgo linux/amd64 binaries
+will report a version of `go1.8.3b2` but not be using BoringCrypto.
+
+To check whether a given binary is using BoringCrypto, run `go tool nm` on it and check
+that it has symbols named `*_Cfunc__goboringcrypto_*`.
+
+The program [rsc.io/goversion](https://godoc.org/rsc.io/goversion) will report the
+crypto implementation used by a given binary when invoked with the `-crypto` flag.
--- /dev/null
+# This file lists published Go+BoringCrypto releases.
+# Each line describes a single release: <version> <git commit> <target> <URL> <sha256sum>
+go1.9rc2b2 91753387bdf7 linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.9rc2b2.linux-amd64.tar.gz 59355a45e6970e8013060851ddb3f079afe8db52e90db520a0826a13f1b5ae5b
+go1.8.3b3 f6ff81bac156 linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.8.3b3.linux-amd64.tar.gz 6287ad971cd268bb2684fb8b1275dea928ad527823062bc057e73036c419e7af
+go1.9rc2b4 c339bc4e07a6 linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.9rc2b4.linux-amd64.tar.gz a8f677d48dc93920065fca4dca1a55bf7110aba132489c47e25d26d55c67eb32
+go1.9b4 e6ad24cde71e linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.9b4.linux-amd64.tar.gz 6592e36a05df8e7c59812328a3a4bfa6c4eed72132fc31245951c3ade3ef2a8a
+go1.9b4 e6ad24cde71e src https://go-boringcrypto.storage.googleapis.com/go1.9b4.src.tar.gz c85f31dc743fee0e8ce0c6ffc286e27c1f51b66c9b923afafb43cdc378a41091
+go1.8.3b4 42cb4dcdb59a linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.8.3b4.linux-amd64.tar.gz 4011c86e6175925e1c63dc7c19a51f825be53bbe7b08260918e5107b0fbd4f85
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+go1.9.3b4 f4e5ebdf35c8 linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.9.3b4.linux-amd64.tar.gz db1997b2454a2f27669b849d2d2cafb247a55128d53da678f06cb409310d6660
+go1.9.3b4 f4e5ebdf35c8 src https://go-boringcrypto.storage.googleapis.com/go1.9.3b4.src.tar.gz 7485e1fc53a9fab9cf34f71de74d69f4c50f9d11a449647de40ee04b59bf8a5b
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+go1.10.3b4 35ba5284935c linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.10.3b4.linux-amd64.tar.gz 6754729d78a375bd1debd980b1e3e7fd49198a980d0bbd8f39e89569aa001942
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+go1.10.4b4 2e2a04a605b6 linux-amd64 https://go-boringcrypto.storage.googleapis.com/go1.10.4b4.linux-amd64.tar.gz 17c275ff448686fe1908ecbea5d11ad6f4f7caa288d1786b756439703b12b8b2
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--- /dev/null
+#!/bin/bash
+# Copyright 2017 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# build.docker builds and publishes a Docker image for
+# a given Go+BoringCrypto release.
+
+set -e
+
+# With no arguments, use the most recent linux-amd64 release in the RELEASES file.
+case "$#" in
+0)
+ version=$(grep linux-amd64 RELEASES | tail -1 | awk '{print $1}');;
+1)
+ version="$1";;
+*)
+ echo 'usage: build.docker [version]' >&2
+ exit 2
+esac
+
+url="$(grep "^$version .* linux-amd64 " RELEASES | awk '{print $4}')"
+sha256="$(grep "^$version .* linux-amd64 " RELEASES | awk '{print $5}')"
+if [ "$sha256" = "" ]; then
+ echo "cannot find $version in RELEASES file" >&2
+ exit 2
+fi
+
+# Build a temporary directory with a Dockerfile.
+dir=$(mktemp -d)
+trap "rm -rf $dir" EXIT
+
+if echo "$url" | grep '!' >/dev/null; then
+ # ! is sed delimiter below. Should never happen.
+ echo "URL contains an exclamation mark!" >&2
+ exit 2
+fi
+
+dversion=$(echo "$version" | sed 's/^go//')
+sed "s!UUU!$url!; s/SSS/$sha256/; s/VVV/$dversion/" dockerfile.in >$dir/Dockerfile
+
+docker build --pull -t goboring/golang:$dversion $dir
+docker run goboring/golang:$dversion go version
+docker run goboring/golang:$dversion go tool nm /usr/local/go/bin/go >$dir/nm
+if ! grep crypto/internal/boring/sig.BoringCrypto $dir/nm >/dev/null; then
+ echo 'built docker image but did NOT find sig.BoringCrypto in go command!' >&2
+ exit 2
+fi
+if egrep 'crypto/sha256\.\(\*digest\)' $dir/nm >/dev/null; then
+ echo 'built docker image but DID find sha256.(*digest) in go command unexpectedly!' >&2
+ exit 2
+fi
+docker push goboring/golang:$dversion
+
+echo
+echo published as goboring/golang:$dversion
--- /dev/null
+#!/bin/bash
+# Copyright 2017 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# build.release builds and publishes a new Go+BoringCrypto release.
+# After running this script, the change to the RELEASES file should be
+# sent out for review and committed to the repository (but the release
+# is already done, so there's not much to review).
+
+set -e
+
+case "$#" in
+0)
+ rev=HEAD;;
+1)
+ rev="$1";;
+*)
+ echo 'usage: build.release [git-rev]' >&2
+ exit 2
+esac
+
+# Determine commit to use.
+commit=$(git rev-parse "$rev" | awk '{print substr($1, 1, 12)}')
+if [ "$commit" = "" ]; then
+ echo 'cannot find commit in git history' >&2
+ exit 2
+fi
+
+# Determine base Go release from tags.
+base=$(git log --decorate=short --oneline "$rev" | grep 'tag: go' | sed 1q | sed 's/[),].*//; s/.*tag: //')
+if [ "$base" = "" ]; then
+ echo "cannot find go release tag in git history for $rev" >&2
+ exit 2
+fi
+
+# Determine boring crypto version from file.
+boring=$(git show "$commit:misc/boring/VERSION")
+if [ "$boring" = "" ]; then
+ echo "missing BORINGVERSION file in $commit" >&2
+ exit 2
+fi
+
+# Make sure we're not redefining a published release.
+version="${base}b${boring}"
+if grep "^$version " RELEASES >/dev/null; then
+ echo "found $version in RELEASES - not rereleasing" >&2
+ exit 2
+fi
+
+# Show what's going on, while the release builds.
+# Good time for user to type ^C if something is wrong.
+echo >&2
+echo "building $version from $commit" >&2
+echo >&2
+git log -n1 "$commit" >&2
+echo >&2
+
+# Build the release tool in a temporary directory.
+dir=$(mktemp -d)
+trap "rm -rf $dir" EXIT
+export GO111MODULE=on
+export GOBIN="$dir"
+(cd "$dir"; go get golang.org/x/build/cmd/release)
+
+# Build the release.
+sha() {
+ if hash sha256sum 2>/dev/null; then
+ sha256sum "$@"
+ else
+ shasum -a 256 "$@"
+ fi
+}
+shortgo=$(echo "$base" | perl -pe 's/(go\d+\.\d+)(\.\d+|rc\d+)/$1/')
+$dir/release -target linux-amd64 -rev "$commit" -version "$version"
+$dir/release -target src -rev "$commit" -version "$version"
+output="$version.linux-amd64.tar.gz"
+ls -l "$output"
+sha256=$(sha "$output" | awk '{print $1}')
+outputsrc="$version.src.tar.gz"
+ls -l "$outputsrc"
+sha256src=$(sha "$outputsrc" | awk '{print $1}')
+
+trap "rm -f /tmp/go.release.$$ /tmp/go.nm.$$" EXIT
+tar -xzf "$output" -O go/bin/go >/tmp/go.release.$$
+go tool nm /tmp/go.release.$$ >/tmp/go.nm.$$
+if ! grep crypto/internal/boring/sig.BoringCrypto /tmp/go.nm.$$ >/dev/null; then
+ echo 'built release but did NOT find sig.BoringCrypto in go command!' >&2
+ exit 2
+fi
+if egrep 'crypto/sha256\.\(\*digest\)' /tmp/go.nm.$$ >/dev/null; then
+ echo 'built release but DID find sha256.(*digest) in go command unexpectedly!' >&2
+ exit 2
+fi
+
+# Publish the release.
+gsutil cp "$output" gs://go-boringcrypto/
+url="https://go-boringcrypto.storage.googleapis.com/$output"
+gsutil cp "$outputsrc" gs://go-boringcrypto/
+urlsrc="https://go-boringcrypto.storage.googleapis.com/$outputsrc"
+
+# Record that it was published.
+echo "$version $commit linux-amd64 $url $sha256" >>RELEASES
+echo "$version $commit src $urlsrc $sha256src" >>RELEASES
--- /dev/null
+# Template for Dockerfile, used in build.docker script.
+# Based on https://github.com/docker-library/golang/blob/7e3d99a803/1.13/buster/Dockerfile
+FROM buildpack-deps:buster-scm
+
+# gcc for cgo
+RUN apt-get update && apt-get install -y --no-install-recommends \
+ g++ \
+ gcc \
+ libc6-dev \
+ make \
+ pkg-config \
+ && rm -rf /var/lib/apt/lists/*
+
+ENV GOLANG_VERSION VVV
+
+RUN set -eux; \
+ \
+ url="UUU"; \
+ wget -O go.tgz "$url"; \
+ echo "SSS go.tgz" | sha256sum -c -; \
+ tar -C /usr/local -xzf go.tgz; \
+ rm go.tgz; \
+ \
+ export PATH="/usr/local/go/bin:$PATH"; \
+ go version
+
+ENV GOPATH /go
+ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
+
+RUN mkdir -p "$GOPATH/src" "$GOPATH/bin" && chmod -R 777 "$GOPATH"
+WORKDIR $GOPATH
--- /dev/null
+#! /bin/bash
+set -euo pipefail
+
+if [ "$#" -ne 2 ]; then
+ echo "usage: merge.sh <target branch> <source revision>"
+ echo ""
+ echo "example: merge.sh dev.boringcrypto master"
+ echo " merge.sh dev.boringcrypto.go1.10 go1.10.7"
+ exit 1
+fi
+
+TARGET="$1"
+SOURCE="$2"
+WORKTREE="$(mktemp -d)"
+BRANCH="boring/merge-$TARGET-$(date +%Y%m%d%H%M%S)"
+
+git fetch
+git worktree add --track -b "$BRANCH" "$WORKTREE" "origin/$TARGET"
+
+cd "$WORKTREE"
+export GIT_GOFMT_HOOK=off
+git merge --no-commit --no-stat "$SOURCE" || echo "Ignoring conflict..."
+[[ -f VERSION ]] && git rm -f VERSION
+git checkout --ours codereview.cfg && git add codereview.cfg
+git commit -m "all: merge $SOURCE into $TARGET"
+
+if ! git log --format=%B -n 1 | grep "\[$TARGET\] "; then
+ echo "The commit does not seem to be targeting the BoringCrypto branch."
+ echo "(Or you are missing the git-codereview hooks.)"
+ exit 1
+fi
+
+git codereview mail -r katie@golang.org,roland@golang.org,filippo@golang.org -trybot -trust HEAD
+cd - && git worktree remove "$WORKTREE"
--- /dev/null
+#! /bin/bash
+set -euo pipefail
+
+if [ "$#" -eq 0 ]; then
+ echo "usage: <target branch> [<target branch> ...]"
+ echo ""
+ echo "example: release.sh dev.boringcrypto.go1.11 dev.boringcrypto.go1.12"
+ exit 1
+fi
+
+# Check that the Docker daemon is available.
+docker ps > /dev/null
+
+WORKTREE="$(mktemp -d)"
+BRANCH="boring/release-$(date +%Y%m%d%H%M%S)"
+
+git fetch
+git worktree add --track -b "$BRANCH" "$WORKTREE" origin/dev.boringcrypto
+
+cd "$WORKTREE/src"
+./make.bash
+
+cd ../misc/boring
+for branch in "$@"; do
+ ./build.release "origin/$branch"
+ ./build.docker
+done
+
+git add RELEASES
+git commit -m "misc/boring: add new releases to RELEASES file"
+git codereview mail -r katie@golang.org,roland@golang.org,filippo@golang.org -trust
+
+rm *.tar.gz
+cd - && git worktree remove "$WORKTREE"
// for security, only the exported fields.
case types.TSTRUCT:
fields := t.Fields().Slice()
+
+ // omitFieldForAwfulBoringCryptoKludge reports whether
+ // the field t should be omitted from the reflect data.
+ // In the crypto/... packages we omit an unexported field
+ // named "boring", to keep from breaking client code that
+ // expects rsa.PublicKey etc to have only public fields.
+ // As the name suggests, this is an awful kludge, but it is
+ // limited to the dev.boringcrypto branch and avoids
+ // much more invasive effects elsewhere.
+ omitFieldForAwfulBoringCryptoKludge := func(t *types.Field) bool {
+ if t.Sym == nil || t.Sym.Name != "boring" || t.Sym.Pkg == nil {
+ return false
+ }
+ path := t.Sym.Pkg.Path
+ if t.Sym.Pkg == types.LocalPkg {
+ path = base.Ctxt.Pkgpath
+ }
+ return strings.HasPrefix(path, "crypto/")
+ }
+ newFields := fields[:0:0]
+ for _, t1 := range fields {
+ if !omitFieldForAwfulBoringCryptoKludge(t1) {
+ newFields = append(newFields, t1)
+ }
+ }
+ fields = newFields
+
for _, t1 := range fields {
writeType(t1.Type)
}
--- /dev/null
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main_test
+
+import "testing"
+
+func TestBoringInternalLink(t *testing.T) {
+ tg := testgo(t)
+ defer tg.cleanup()
+ tg.parallel()
+ tg.tempFile("main.go", `package main
+ import "crypto/sha1"
+ func main() {
+ sha1.New()
+ }`)
+ tg.run("build", "-ldflags=-w -extld=false", tg.path("main.go"))
+ tg.run("build", "-ldflags=-extld=false", tg.path("main.go"))
+}
tg.grepStdout("p2: false", "p2 listed as BinaryOnly")
}
-// Issue 16050.
-func TestAlwaysLinkSysoFiles(t *testing.T) {
+// Issue 16050 and 21884.
+func TestLinkSysoFiles(t *testing.T) {
+ if runtime.GOOS != "linux" || runtime.GOARCH != "amd64" {
+ t.Skip("not linux/amd64")
+ }
+
tg := testgo(t)
defer tg.cleanup()
tg.parallel()
tg.setenv("CGO_ENABLED", "0")
tg.run("list", "-f", "{{.SysoFiles}}", "syso")
tg.grepStdout("a.syso", "missing syso file with CGO_ENABLED=0")
+
+ tg.setenv("CGO_ENABLED", "1")
+ tg.run("list", "-msan", "-f", "{{.SysoFiles}}", "syso")
+ tg.grepStdoutNot("a.syso", "unexpected syso file with -msan")
}
// Issue 16120.
p.SwigFiles = pp.SwigFiles
p.SwigCXXFiles = pp.SwigCXXFiles
p.SysoFiles = pp.SysoFiles
+ if cfg.BuildMSan {
+ // There's no way for .syso files to be built both with and without
+ // support for memory sanitizer. Assume they are built without,
+ // and drop them.
+ p.SysoFiles = nil
+ }
p.CgoCFLAGS = pp.CgoCFLAGS
p.CgoCPPFLAGS = pp.CgoCPPFLAGS
p.CgoCXXFLAGS = pp.CgoCXXFLAGS
// These packages can use internal linking mode.
// Others trigger external mode.
var internalpkg = []string{
+ "crypto/internal/boring",
"crypto/x509",
"net",
"os/user",
"strconv"
)
+import "crypto/internal/boring"
+
// The AES block size in bytes.
const BlockSize = 16
case 16, 24, 32:
break
}
+ if boring.Enabled {
+ return boring.NewAESCipher(key)
+ }
return newCipher(key)
}
"internal/cpu"
)
+import "crypto/internal/boring"
+
// defined in asm_*.s
//go:noescape
func (c *aesCipherAsm) BlockSize() int { return BlockSize }
func (c *aesCipherAsm) Encrypt(dst, src []byte) {
+ boring.Unreachable()
if len(src) < BlockSize {
panic("crypto/aes: input not full block")
}
}
func (c *aesCipherAsm) Decrypt(dst, src []byte) {
+ boring.Unreachable()
if len(src) < BlockSize {
panic("crypto/aes: input not full block")
}
--- /dev/null
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package boring exposes functions that are only available when building with
+// Go+BoringCrypto. This package is available on all targets as long as the
+// Go+BoringCrypto toolchain is used. Use the Enabled function to determine
+// whether the BoringCrypto core is actually in use.
+//
+// Any time the Go+BoringCrypto toolchain is used, the "boringcrypto" build tag
+// is satisfied, so that applications can tag files that use this package.
+package boring
+
+import "crypto/internal/boring"
+
+// Enabled reports whether BoringCrypto handles supported crypto operations.
+func Enabled() bool {
+ return boring.Enabled
+}
--- /dev/null
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package boring_test
+
+import (
+ "crypto/boring"
+ "runtime"
+ "testing"
+)
+
+func TestEnabled(t *testing.T) {
+ supportedPlatform := runtime.GOOS == "linux" && runtime.GOARCH == "amd64"
+ if supportedPlatform && !boring.Enabled() {
+ t.Error("Enabled returned false on a supported platform")
+ } else if !supportedPlatform && boring.Enabled() {
+ t.Error("Enabled returned true on an unsupported platform")
+ }
+}
--- /dev/null
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !boringcrypto
+
+package boring_test
+
+import "testing"
+
+func TestNotBoring(t *testing.T) {
+ t.Error("a file tagged !boringcrypto should not build under Go+BoringCrypto")
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package ecdsa
+
+import (
+ "crypto/internal/boring"
+ "math/big"
+ "sync/atomic"
+ "unsafe"
+)
+
+// Cached conversions from Go PublicKey/PrivateKey to BoringCrypto.
+//
+// A new 'boring atomic.Value' field in both PublicKey and PrivateKey
+// serves as a cache for the most recent conversion. The cache is an
+// atomic.Value because code might reasonably set up a key and then
+// (thinking it immutable) use it from multiple goroutines simultaneously.
+// The first operation initializes the cache; if there are multiple simultaneous
+// first operations, they will do redundant work but not step on each other.
+//
+// We could just assume that once used in a Sign or Verify operation,
+// a particular key is never again modified, but that has not been a
+// stated assumption before. Just in case there is any existing code that
+// does modify the key between operations, we save the original values
+// alongside the cached BoringCrypto key and check that the real key
+// still matches before using the cached key. The theory is that the real
+// operations are significantly more expensive than the comparison.
+
+type boringPub struct {
+ key *boring.PublicKeyECDSA
+ orig PublicKey
+}
+
+func boringPublicKey(pub *PublicKey) (*boring.PublicKeyECDSA, error) {
+ b := (*boringPub)(atomic.LoadPointer(&pub.boring))
+ if b != nil && publicKeyEqual(&b.orig, pub) {
+ return b.key, nil
+ }
+
+ b = new(boringPub)
+ b.orig = copyPublicKey(pub)
+ key, err := boring.NewPublicKeyECDSA(b.orig.Curve.Params().Name, b.orig.X, b.orig.Y)
+ if err != nil {
+ return nil, err
+ }
+ b.key = key
+ atomic.StorePointer(&pub.boring, unsafe.Pointer(b))
+ return key, nil
+}
+
+type boringPriv struct {
+ key *boring.PrivateKeyECDSA
+ orig PrivateKey
+}
+
+func boringPrivateKey(priv *PrivateKey) (*boring.PrivateKeyECDSA, error) {
+ b := (*boringPriv)(atomic.LoadPointer(&priv.boring))
+ if b != nil && privateKeyEqual(&b.orig, priv) {
+ return b.key, nil
+ }
+
+ b = new(boringPriv)
+ b.orig = copyPrivateKey(priv)
+ key, err := boring.NewPrivateKeyECDSA(b.orig.Curve.Params().Name, b.orig.X, b.orig.Y, b.orig.D)
+ if err != nil {
+ return nil, err
+ }
+ b.key = key
+ atomic.StorePointer(&priv.boring, unsafe.Pointer(b))
+ return key, nil
+}
+
+func publicKeyEqual(k1, k2 *PublicKey) bool {
+ return k1.X != nil &&
+ k1.Curve.Params() == k2.Curve.Params() &&
+ k1.X.Cmp(k2.X) == 0 &&
+ k1.Y.Cmp(k2.Y) == 0
+}
+
+func privateKeyEqual(k1, k2 *PrivateKey) bool {
+ return publicKeyEqual(&k1.PublicKey, &k2.PublicKey) &&
+ k1.D.Cmp(k2.D) == 0
+}
+
+func copyPublicKey(k *PublicKey) PublicKey {
+ return PublicKey{
+ Curve: k.Curve,
+ X: new(big.Int).Set(k.X),
+ Y: new(big.Int).Set(k.Y),
+ }
+}
+
+func copyPrivateKey(k *PrivateKey) PrivateKey {
+ return PrivateKey{
+ PublicKey: copyPublicKey(&k.PublicKey),
+ D: new(big.Int).Set(k.D),
+ }
+}
"golang.org/x/crypto/cryptobyte/asn1"
)
+import (
+ "crypto/internal/boring"
+ "unsafe"
+)
+
// A invertible implements fast inverse mod Curve.Params().N
type invertible interface {
// Inverse returns the inverse of k in GF(P)
type PublicKey struct {
elliptic.Curve
X, Y *big.Int
+
+ boring unsafe.Pointer
}
// Any methods implemented on PublicKey might need to also be implemented on
type PrivateKey struct {
PublicKey
D *big.Int
+
+ boring unsafe.Pointer
}
// Public returns the public key corresponding to priv.
// where the private part is kept in, for example, a hardware module. Common
// uses should use the Sign function in this package directly.
func (priv *PrivateKey) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) ([]byte, error) {
+ if boring.Enabled && rand == boring.RandReader {
+ b, err := boringPrivateKey(priv)
+ if err != nil {
+ return nil, err
+ }
+ return boring.SignMarshalECDSA(b, digest)
+ }
+ boring.UnreachableExceptTests()
+
r, s, err := Sign(rand, priv, digest)
if err != nil {
return nil, err
// GenerateKey generates a public and private key pair.
func GenerateKey(c elliptic.Curve, rand io.Reader) (*PrivateKey, error) {
+ if boring.Enabled && rand == boring.RandReader {
+ x, y, d, err := boring.GenerateKeyECDSA(c.Params().Name)
+ if err != nil {
+ return nil, err
+ }
+ return &PrivateKey{PublicKey: PublicKey{Curve: c, X: x, Y: y}, D: d}, nil
+ }
+ boring.UnreachableExceptTests()
+
k, err := randFieldElement(c, rand)
if err != nil {
return nil, err
func Sign(rand io.Reader, priv *PrivateKey, hash []byte) (r, s *big.Int, err error) {
randutil.MaybeReadByte(rand)
+ if boring.Enabled && rand == boring.RandReader {
+ b, err := boringPrivateKey(priv)
+ if err != nil {
+ return nil, nil, err
+ }
+ return boring.SignECDSA(b, hash)
+ }
+ boring.UnreachableExceptTests()
+
// Get min(log2(q) / 2, 256) bits of entropy from rand.
entropylen := (priv.Curve.Params().BitSize + 7) / 16
if entropylen > 32 {
// Verify verifies the signature in r, s of hash using the public key, pub. Its
// return value records whether the signature is valid.
func Verify(pub *PublicKey, hash []byte, r, s *big.Int) bool {
+ if boring.Enabled {
+ b, err := boringPublicKey(pub)
+ if err != nil {
+ return false
+ }
+ return boring.VerifyECDSA(b, hash, r, s)
+ }
+ boring.UnreachableExceptTests()
+
// See [NSA] 3.4.2
c := pub.Curve
N := c.Params().N
}
func TestAllocations(t *testing.T) {
+ t.Skip("skipping allocations test on Go+BoringCrypto, as cgo causes allocations")
if strings.HasSuffix(os.Getenv("GO_BUILDER_NAME"), "-noopt") {
t.Skip("skipping allocations test without relevant optimizations")
}
var testAllocationsSink byte
func TestAllocations(t *testing.T) {
+ t.Skip("skipping allocations test on Go+BoringCrypto, as cgo causes allocations")
if strings.HasSuffix(os.Getenv("GO_BUILDER_NAME"), "-noopt") {
t.Skip("skipping allocations test without relevant optimizations")
}
"hash"
)
+import "crypto/internal/boring"
+
// FIPS 198-1:
// https://csrc.nist.gov/publications/fips/fips198-1/FIPS-198-1_final.pdf
// the returned Hash does not implement encoding.BinaryMarshaler
// or encoding.BinaryUnmarshaler.
func New(h func() hash.Hash, key []byte) hash.Hash {
+ if boring.Enabled {
+ hm := boring.NewHMAC(h, key)
+ if hm != nil {
+ return hm
+ }
+ // BoringCrypto did not recognize h, so fall through to standard Go code.
+ }
hm := new(hmac)
hm.outer = h()
hm.inner = h()
package hmac
import (
+ "bytes"
+ "crypto/internal/boring"
"crypto/md5"
"crypto/sha1"
"crypto/sha256"
sha512.Size,
sha512.BlockSize,
},
+ // HMAC without key is dumb but should probably not fail.
+ {
+ sha1.New,
+ []byte{},
+ []byte("message"),
+ "d5d1ed05121417247616cfc8378f360a39da7cfa",
+ sha1.Size,
+ sha1.BlockSize,
+ },
+ {
+ sha256.New,
+ []byte{},
+ []byte("message"),
+ "eb08c1f56d5ddee07f7bdf80468083da06b64cf4fac64fe3a90883df5feacae4",
+ sha256.Size,
+ sha256.BlockSize,
+ },
+ {
+ sha512.New,
+ []byte{},
+ []byte("message"),
+ "08fce52f6395d59c2a3fb8abb281d74ad6f112b9a9c787bcea290d94dadbc82b2ca3e5e12bf2277c7fedbb0154d5493e41bb7459f63c8e39554ea3651b812492",
+ sha512.Size,
+ sha512.BlockSize,
+ },
}
func TestHMAC(t *testing.T) {
}
func TestNonUniqueHash(t *testing.T) {
+ if boring.Enabled {
+ t.Skip("hash.Hash provided by boringcrypto are not comparable")
+ }
sha := sha256.New()
defer func() {
err := recover()
}
}
+func TestWriteAfterSum(t *testing.T) {
+ h := New(sha1.New, nil)
+ h.Write([]byte("hello"))
+ sumHello := h.Sum(nil)
+
+ h = New(sha1.New, nil)
+ h.Write([]byte("hello world"))
+ sumHelloWorld := h.Sum(nil)
+
+ // Test that Sum has no effect on future Sum or Write operations.
+ // This is a bit unusual as far as usage, but it's allowed
+ // by the definition of Go hash.Hash, and some clients expect it to work.
+ h = New(sha1.New, nil)
+ h.Write([]byte("hello"))
+ if sum := h.Sum(nil); !bytes.Equal(sum, sumHello) {
+ t.Fatalf("1st Sum after hello = %x, want %x", sum, sumHello)
+ }
+ if sum := h.Sum(nil); !bytes.Equal(sum, sumHello) {
+ t.Fatalf("2nd Sum after hello = %x, want %x", sum, sumHello)
+ }
+
+ h.Write([]byte(" world"))
+ if sum := h.Sum(nil); !bytes.Equal(sum, sumHelloWorld) {
+ t.Fatalf("1st Sum after hello world = %x, want %x", sum, sumHelloWorld)
+ }
+ if sum := h.Sum(nil); !bytes.Equal(sum, sumHelloWorld) {
+ t.Fatalf("2nd Sum after hello world = %x, want %x", sum, sumHelloWorld)
+ }
+
+ h.Reset()
+ h.Write([]byte("hello"))
+ if sum := h.Sum(nil); !bytes.Equal(sum, sumHello) {
+ t.Fatalf("Sum after Reset + hello = %x, want %x", sum, sumHello)
+ }
+}
+
func BenchmarkHMACSHA256_1K(b *testing.B) {
key := make([]byte, 32)
buf := make([]byte, 1024)
--- /dev/null
+# Copyright 2020 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This Docker image builds goboringcrypto_linux_amd64.syso according to the
+# Security Policy. To use it, build the image, run it, and then extract
+# /boring/godriver/goboringcrypto_linux_amd64.syso.
+#
+# $ docker build -t goboring:140sp3678 .
+# $ docker run -it --name goboring-140sp3678 goboring:140sp3678
+# $ docker cp goboring-140sp3678:/boring/godriver/goboringcrypto_linux_amd64.syso .
+# $ sha256sum goboringcrypto_linux_amd64.syso # compare to docker output
+
+FROM ubuntu:focal
+
+RUN mkdir /boring
+WORKDIR /boring
+
+# Following 140sp3678.pdf [0] page 19, install clang 7.0.1, Go 1.12.7, and
+# Ninja 1.9.0, then download and verify BoringSSL.
+#
+# [0]: https://csrc.nist.gov/CSRC/media/projects/cryptographic-module-validation-program/documents/security-policies/140sp3678.pdf
+
+RUN apt-get update && \
+ apt-get install --no-install-recommends -y cmake xz-utils wget unzip ca-certificates clang-7
+RUN wget https://github.com/ninja-build/ninja/releases/download/v1.9.0/ninja-linux.zip && \
+ unzip ninja-linux.zip && \
+ rm ninja-linux.zip && \
+ mv ninja /usr/local/bin/
+RUN wget https://golang.org/dl/go1.12.7.linux-amd64.tar.gz && \
+ tar -C /usr/local -xzf go1.12.7.linux-amd64.tar.gz && \
+ rm go1.12.7.linux-amd64.tar.gz && \
+ ln -s /usr/local/go/bin/go /usr/local/bin/
+
+RUN wget https://commondatastorage.googleapis.com/chromium-boringssl-fips/boringssl-ae223d6138807a13006342edfeef32e813246b39.tar.xz
+RUN [ "$(sha256sum boringssl-ae223d6138807a13006342edfeef32e813246b39.tar.xz | awk '{print $1}')" = \
+ 3b5fdf23274d4179c2077b5e8fa625d9debd7a390aac1d165b7e47234f648bb8 ]
+
+ADD goboringcrypto.h /boring/godriver/goboringcrypto.h
+ADD build.sh /boring/build.sh
+
+ENTRYPOINT ["/boring/build.sh"]
--- /dev/null
+The Go source code and supporting files in this directory
+are covered by the usual Go license (see ../../../../LICENSE).
+
+The goboringcrypto_linux_amd64.syso object file is built
+from BoringSSL source code by build/build.sh and is covered
+by the BoringSSL license reproduced below and also at
+https://boringssl.googlesource.com/boringssl/+/fips-20190808/LICENSE.
+
+BoringSSL is a fork of OpenSSL. As such, large parts of it fall under OpenSSL
+licensing. Files that are completely new have a Google copyright and an ISC
+license. This license is reproduced at the bottom of this file.
+
+Contributors to BoringSSL are required to follow the CLA rules for Chromium:
+https://cla.developers.google.com/clas
+
+Some files from Intel are under yet another license, which is also included
+underneath.
+
+The OpenSSL toolkit stays under a dual license, i.e. both the conditions of the
+OpenSSL License and the original SSLeay license apply to the toolkit. See below
+for the actual license texts. Actually both licenses are BSD-style Open Source
+licenses. In case of any license issues related to OpenSSL please contact
+openssl-core@openssl.org.
+
+The following are Google-internal bug numbers where explicit permission from
+some authors is recorded for use of their work. (This is purely for our own
+record keeping.)
+ 27287199
+ 27287880
+ 27287883
+
+ OpenSSL License
+ ---------------
+
+/* ====================================================================
+ * Copyright (c) 1998-2011 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+ Original SSLeay License
+ -----------------------
+
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+
+ISC license used for completely new code in BoringSSL:
+
+/* Copyright (c) 2015, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+
+Some files from Intel carry the following license:
+
+# Copyright (c) 2012, Intel Corporation
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the
+# distribution.
+#
+# * Neither the name of the Intel Corporation nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+#
+# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,amd64
+// +build !android
+// +build !cmd_go_bootstrap
+// +build !msan
+
+package boring
+
+/*
+
+#include "goboringcrypto.h"
+
+// These wrappers allocate out_len on the C stack, and check that it matches the expected
+// value, to avoid having to pass a pointer from Go, which would escape to the heap.
+
+int EVP_AEAD_CTX_seal_wrapper(const GO_EVP_AEAD_CTX *ctx, uint8_t *out,
+ size_t exp_out_len,
+ const uint8_t *nonce, size_t nonce_len,
+ const uint8_t *in, size_t in_len,
+ const uint8_t *ad, size_t ad_len) {
+ size_t out_len;
+ int ok = _goboringcrypto_EVP_AEAD_CTX_seal(ctx, out, &out_len, exp_out_len,
+ nonce, nonce_len, in, in_len, ad, ad_len);
+ if (out_len != exp_out_len) {
+ return 0;
+ }
+ return ok;
+};
+
+int EVP_AEAD_CTX_open_wrapper(const GO_EVP_AEAD_CTX *ctx, uint8_t *out,
+ size_t exp_out_len,
+ const uint8_t *nonce, size_t nonce_len,
+ const uint8_t *in, size_t in_len,
+ const uint8_t *ad, size_t ad_len) {
+ size_t out_len;
+ int ok = _goboringcrypto_EVP_AEAD_CTX_open(ctx, out, &out_len, exp_out_len,
+ nonce, nonce_len, in, in_len, ad, ad_len);
+ if (out_len != exp_out_len) {
+ return 0;
+ }
+ return ok;
+};
+
+*/
+import "C"
+import (
+ "crypto/cipher"
+ "errors"
+ "runtime"
+ "strconv"
+ "unsafe"
+)
+
+type aesKeySizeError int
+
+func (k aesKeySizeError) Error() string {
+ return "crypto/aes: invalid key size " + strconv.Itoa(int(k))
+}
+
+const aesBlockSize = 16
+
+type aesCipher struct {
+ key []byte
+ enc C.GO_AES_KEY
+ dec C.GO_AES_KEY
+}
+
+type extraModes interface {
+ // Copied out of crypto/aes/modes.go.
+ NewCBCEncrypter(iv []byte) cipher.BlockMode
+ NewCBCDecrypter(iv []byte) cipher.BlockMode
+ NewCTR(iv []byte) cipher.Stream
+ NewGCM(nonceSize, tagSize int) (cipher.AEAD, error)
+
+ // Invented for BoringCrypto.
+ NewGCMTLS() (cipher.AEAD, error)
+}
+
+var _ extraModes = (*aesCipher)(nil)
+
+func NewAESCipher(key []byte) (cipher.Block, error) {
+ c := &aesCipher{key: make([]byte, len(key))}
+ copy(c.key, key)
+ // Note: 0 is success, contradicting the usual BoringCrypto convention.
+ if C._goboringcrypto_AES_set_decrypt_key((*C.uint8_t)(unsafe.Pointer(&c.key[0])), C.uint(8*len(c.key)), &c.dec) != 0 ||
+ C._goboringcrypto_AES_set_encrypt_key((*C.uint8_t)(unsafe.Pointer(&c.key[0])), C.uint(8*len(c.key)), &c.enc) != 0 {
+ return nil, aesKeySizeError(len(key))
+ }
+ return c, nil
+}
+
+func (c *aesCipher) BlockSize() int { return aesBlockSize }
+
+func (c *aesCipher) Encrypt(dst, src []byte) {
+ if inexactOverlap(dst, src) {
+ panic("crypto/cipher: invalid buffer overlap")
+ }
+ if len(src) < aesBlockSize {
+ panic("crypto/aes: input not full block")
+ }
+ if len(dst) < aesBlockSize {
+ panic("crypto/aes: output not full block")
+ }
+ C._goboringcrypto_AES_encrypt(
+ (*C.uint8_t)(unsafe.Pointer(&src[0])),
+ (*C.uint8_t)(unsafe.Pointer(&dst[0])),
+ &c.enc)
+}
+
+func (c *aesCipher) Decrypt(dst, src []byte) {
+ if inexactOverlap(dst, src) {
+ panic("crypto/cipher: invalid buffer overlap")
+ }
+ if len(src) < aesBlockSize {
+ panic("crypto/aes: input not full block")
+ }
+ if len(dst) < aesBlockSize {
+ panic("crypto/aes: output not full block")
+ }
+ C._goboringcrypto_AES_decrypt(
+ (*C.uint8_t)(unsafe.Pointer(&src[0])),
+ (*C.uint8_t)(unsafe.Pointer(&dst[0])),
+ &c.dec)
+}
+
+type aesCBC struct {
+ key *C.GO_AES_KEY
+ mode C.int
+ iv [aesBlockSize]byte
+}
+
+func (x *aesCBC) BlockSize() int { return aesBlockSize }
+
+func (x *aesCBC) CryptBlocks(dst, src []byte) {
+ if inexactOverlap(dst, src) {
+ panic("crypto/cipher: invalid buffer overlap")
+ }
+ if len(src)%aesBlockSize != 0 {
+ panic("crypto/cipher: input not full blocks")
+ }
+ if len(dst) < len(src) {
+ panic("crypto/cipher: output smaller than input")
+ }
+ if len(src) > 0 {
+ C._goboringcrypto_AES_cbc_encrypt(
+ (*C.uint8_t)(unsafe.Pointer(&src[0])),
+ (*C.uint8_t)(unsafe.Pointer(&dst[0])),
+ C.size_t(len(src)), x.key,
+ (*C.uint8_t)(unsafe.Pointer(&x.iv[0])), x.mode)
+ }
+}
+
+func (x *aesCBC) SetIV(iv []byte) {
+ if len(iv) != aesBlockSize {
+ panic("cipher: incorrect length IV")
+ }
+ copy(x.iv[:], iv)
+}
+
+func (c *aesCipher) NewCBCEncrypter(iv []byte) cipher.BlockMode {
+ x := &aesCBC{key: &c.enc, mode: C.GO_AES_ENCRYPT}
+ copy(x.iv[:], iv)
+ return x
+}
+
+func (c *aesCipher) NewCBCDecrypter(iv []byte) cipher.BlockMode {
+ x := &aesCBC{key: &c.dec, mode: C.GO_AES_DECRYPT}
+ copy(x.iv[:], iv)
+ return x
+}
+
+type aesCTR struct {
+ key *C.GO_AES_KEY
+ iv [aesBlockSize]byte
+ num C.uint
+ ecount_buf [16]C.uint8_t
+}
+
+func (x *aesCTR) XORKeyStream(dst, src []byte) {
+ if inexactOverlap(dst, src) {
+ panic("crypto/cipher: invalid buffer overlap")
+ }
+ if len(dst) < len(src) {
+ panic("crypto/cipher: output smaller than input")
+ }
+ if len(src) == 0 {
+ return
+ }
+ C._goboringcrypto_AES_ctr128_encrypt(
+ (*C.uint8_t)(unsafe.Pointer(&src[0])),
+ (*C.uint8_t)(unsafe.Pointer(&dst[0])),
+ C.size_t(len(src)), x.key, (*C.uint8_t)(unsafe.Pointer(&x.iv[0])),
+ &x.ecount_buf[0], &x.num)
+}
+
+func (c *aesCipher) NewCTR(iv []byte) cipher.Stream {
+ x := &aesCTR{key: &c.enc}
+ copy(x.iv[:], iv)
+ return x
+}
+
+type aesGCM struct {
+ ctx C.GO_EVP_AEAD_CTX
+ aead *C.GO_EVP_AEAD
+}
+
+const (
+ gcmBlockSize = 16
+ gcmTagSize = 16
+ gcmStandardNonceSize = 12
+)
+
+type aesNonceSizeError int
+
+func (n aesNonceSizeError) Error() string {
+ return "crypto/aes: invalid GCM nonce size " + strconv.Itoa(int(n))
+}
+
+type noGCM struct {
+ cipher.Block
+}
+
+func (c *aesCipher) NewGCM(nonceSize, tagSize int) (cipher.AEAD, error) {
+ if nonceSize != gcmStandardNonceSize && tagSize != gcmTagSize {
+ return nil, errors.New("crypto/aes: GCM tag and nonce sizes can't be non-standard at the same time")
+ }
+ // Fall back to standard library for GCM with non-standard nonce or tag size.
+ if nonceSize != gcmStandardNonceSize {
+ return cipher.NewGCMWithNonceSize(&noGCM{c}, nonceSize)
+ }
+ if tagSize != gcmTagSize {
+ return cipher.NewGCMWithTagSize(&noGCM{c}, tagSize)
+ }
+ return c.newGCM(false)
+}
+
+func (c *aesCipher) NewGCMTLS() (cipher.AEAD, error) {
+ return c.newGCM(true)
+}
+
+func (c *aesCipher) newGCM(tls bool) (cipher.AEAD, error) {
+ var aead *C.GO_EVP_AEAD
+ switch len(c.key) * 8 {
+ case 128:
+ if tls {
+ aead = C._goboringcrypto_EVP_aead_aes_128_gcm_tls12()
+ } else {
+ aead = C._goboringcrypto_EVP_aead_aes_128_gcm()
+ }
+ case 256:
+ if tls {
+ aead = C._goboringcrypto_EVP_aead_aes_256_gcm_tls12()
+ } else {
+ aead = C._goboringcrypto_EVP_aead_aes_256_gcm()
+ }
+ default:
+ // Fall back to standard library for GCM with non-standard key size.
+ return cipher.NewGCMWithNonceSize(&noGCM{c}, gcmStandardNonceSize)
+ }
+
+ g := &aesGCM{aead: aead}
+ if C._goboringcrypto_EVP_AEAD_CTX_init(&g.ctx, aead, (*C.uint8_t)(unsafe.Pointer(&c.key[0])), C.size_t(len(c.key)), C.GO_EVP_AEAD_DEFAULT_TAG_LENGTH, nil) == 0 {
+ return nil, fail("EVP_AEAD_CTX_init")
+ }
+ // Note: Because of the finalizer, any time g.ctx is passed to cgo,
+ // that call must be followed by a call to runtime.KeepAlive(g),
+ // to make sure g is not collected (and finalized) before the cgo
+ // call returns.
+ runtime.SetFinalizer(g, (*aesGCM).finalize)
+ if g.NonceSize() != gcmStandardNonceSize {
+ panic("boringcrypto: internal confusion about nonce size")
+ }
+ if g.Overhead() != gcmTagSize {
+ panic("boringcrypto: internal confusion about tag size")
+ }
+
+ return g, nil
+}
+
+func (g *aesGCM) finalize() {
+ C._goboringcrypto_EVP_AEAD_CTX_cleanup(&g.ctx)
+}
+
+func (g *aesGCM) NonceSize() int {
+ return int(C._goboringcrypto_EVP_AEAD_nonce_length(g.aead))
+}
+
+func (g *aesGCM) Overhead() int {
+ return int(C._goboringcrypto_EVP_AEAD_max_overhead(g.aead))
+}
+
+// base returns the address of the underlying array in b,
+// being careful not to panic when b has zero length.
+func base(b []byte) *C.uint8_t {
+ if len(b) == 0 {
+ return nil
+ }
+ return (*C.uint8_t)(unsafe.Pointer(&b[0]))
+}
+
+func (g *aesGCM) Seal(dst, nonce, plaintext, additionalData []byte) []byte {
+ if len(nonce) != gcmStandardNonceSize {
+ panic("cipher: incorrect nonce length given to GCM")
+ }
+ if uint64(len(plaintext)) > ((1<<32)-2)*aesBlockSize || len(plaintext)+gcmTagSize < len(plaintext) {
+ panic("cipher: message too large for GCM")
+ }
+ if len(dst)+len(plaintext)+gcmTagSize < len(dst) {
+ panic("cipher: message too large for buffer")
+ }
+
+ // Make room in dst to append plaintext+overhead.
+ n := len(dst)
+ for cap(dst) < n+len(plaintext)+gcmTagSize {
+ dst = append(dst[:cap(dst)], 0)
+ }
+ dst = dst[:n+len(plaintext)+gcmTagSize]
+
+ // Check delayed until now to make sure len(dst) is accurate.
+ if inexactOverlap(dst[n:], plaintext) {
+ panic("cipher: invalid buffer overlap")
+ }
+
+ outLen := C.size_t(len(plaintext) + gcmTagSize)
+ ok := C.EVP_AEAD_CTX_seal_wrapper(
+ &g.ctx,
+ (*C.uint8_t)(unsafe.Pointer(&dst[n])), outLen,
+ base(nonce), C.size_t(len(nonce)),
+ base(plaintext), C.size_t(len(plaintext)),
+ base(additionalData), C.size_t(len(additionalData)))
+ runtime.KeepAlive(g)
+ if ok == 0 {
+ panic(fail("EVP_AEAD_CTX_seal"))
+ }
+ return dst[:n+int(outLen)]
+}
+
+var errOpen = errors.New("cipher: message authentication failed")
+
+func (g *aesGCM) Open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
+ if len(nonce) != gcmStandardNonceSize {
+ panic("cipher: incorrect nonce length given to GCM")
+ }
+ if len(ciphertext) < gcmTagSize {
+ return nil, errOpen
+ }
+ if uint64(len(ciphertext)) > ((1<<32)-2)*aesBlockSize+gcmTagSize {
+ return nil, errOpen
+ }
+
+ // Make room in dst to append ciphertext without tag.
+ n := len(dst)
+ for cap(dst) < n+len(ciphertext)-gcmTagSize {
+ dst = append(dst[:cap(dst)], 0)
+ }
+ dst = dst[:n+len(ciphertext)-gcmTagSize]
+
+ // Check delayed until now to make sure len(dst) is accurate.
+ if inexactOverlap(dst[n:], ciphertext) {
+ panic("cipher: invalid buffer overlap")
+ }
+
+ outLen := C.size_t(len(ciphertext) - gcmTagSize)
+ ok := C.EVP_AEAD_CTX_open_wrapper(
+ &g.ctx,
+ base(dst[n:]), outLen,
+ base(nonce), C.size_t(len(nonce)),
+ base(ciphertext), C.size_t(len(ciphertext)),
+ base(additionalData), C.size_t(len(additionalData)))
+ runtime.KeepAlive(g)
+ if ok == 0 {
+ return nil, errOpen
+ }
+ return dst[:n+int(outLen)], nil
+}
+
+func anyOverlap(x, y []byte) bool {
+ return len(x) > 0 && len(y) > 0 &&
+ uintptr(unsafe.Pointer(&x[0])) <= uintptr(unsafe.Pointer(&y[len(y)-1])) &&
+ uintptr(unsafe.Pointer(&y[0])) <= uintptr(unsafe.Pointer(&x[len(x)-1]))
+}
+
+func inexactOverlap(x, y []byte) bool {
+ if len(x) == 0 || len(y) == 0 || &x[0] == &y[0] {
+ return false
+ }
+ return anyOverlap(x, y)
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,amd64
+// +build !android
+// +build !cmd_go_bootstrap
+// +build !msan
+
+package boring
+
+// #include "goboringcrypto.h"
+import "C"
+import (
+ "crypto/internal/boring/sig"
+ "math/big"
+)
+
+const available = true
+
+func init() {
+ C._goboringcrypto_BORINGSSL_bcm_power_on_self_test()
+ if C._goboringcrypto_FIPS_mode() != 1 {
+ panic("boringcrypto: not in FIPS mode")
+ }
+ sig.BoringCrypto()
+}
+
+// Unreachable marks code that should be unreachable
+// when BoringCrypto is in use. It panics.
+func Unreachable() {
+ panic("boringcrypto: invalid code execution")
+}
+
+// provided by runtime to avoid os import
+func runtime_arg0() string
+
+func hasSuffix(s, t string) bool {
+ return len(s) > len(t) && s[len(s)-len(t):] == t
+}
+
+// UnreachableExceptTests marks code that should be unreachable
+// when BoringCrypto is in use. It panics.
+func UnreachableExceptTests() {
+ name := runtime_arg0()
+ // If BoringCrypto ran on Windows we'd need to allow _test.exe and .test.exe as well.
+ if !hasSuffix(name, "_test") && !hasSuffix(name, ".test") {
+ println("boringcrypto: unexpected code execution in", name)
+ panic("boringcrypto: invalid code execution")
+ }
+}
+
+type fail string
+
+func (e fail) Error() string { return "boringcrypto: " + string(e) + " failed" }
+
+func bigToBN(x *big.Int) *C.GO_BIGNUM {
+ raw := x.Bytes()
+ return C._goboringcrypto_BN_bin2bn(base(raw), C.size_t(len(raw)), nil)
+}
+
+func bnToBig(bn *C.GO_BIGNUM) *big.Int {
+ raw := make([]byte, C._goboringcrypto_BN_num_bytes(bn))
+ n := C._goboringcrypto_BN_bn2bin(bn, base(raw))
+ return new(big.Int).SetBytes(raw[:n])
+}
+
+func bigToBn(bnp **C.GO_BIGNUM, b *big.Int) bool {
+ if *bnp != nil {
+ C._goboringcrypto_BN_free(*bnp)
+ *bnp = nil
+ }
+ if b == nil {
+ return true
+ }
+ raw := b.Bytes()
+ bn := C._goboringcrypto_BN_bin2bn(base(raw), C.size_t(len(raw)), nil)
+ if bn == nil {
+ return false
+ }
+ *bnp = bn
+ return true
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Most functionality in this package is tested by replacing existing code
+// and inheriting that code's tests.
+
+package boring
+
+import "testing"
+
+// Test that func init does not panic.
+func TestInit(t *testing.T) {}
+
+// Test that Unreachable panics.
+func TestUnreachable(t *testing.T) {
+ defer func() {
+ if Enabled {
+ if err := recover(); err == nil {
+ t.Fatal("expected Unreachable to panic")
+ }
+ } else {
+ if err := recover(); err != nil {
+ t.Fatalf("expected Unreachable to be a no-op")
+ }
+ }
+ }()
+ Unreachable()
+}
+
+// Test that UnreachableExceptTests does not panic (this is a test).
+func TestUnreachableExceptTests(t *testing.T) {
+ UnreachableExceptTests()
+}
--- /dev/null
+#!/bin/bash
+# Copyright 2020 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+set -e
+id
+date
+export LANG=C
+unset LANGUAGE
+
+# Build BoringCrypto libcrypto.a.
+# Following https://csrc.nist.gov/CSRC/media/projects/cryptographic-module-validation-program/documents/security-policies/140sp3678.pdf page 19.
+
+tar xJf boringssl-*z
+
+# Go requires -fPIC for linux/amd64 cgo builds.
+# Setting -fPIC only affects the compilation of the non-module code in libcrypto.a,
+# because the FIPS module itself is already built with -fPIC.
+echo '#!/bin/bash
+exec clang-7 -fPIC "$@"
+' >/usr/local/bin/clang
+echo '#!/bin/bash
+exec clang++-7 -fPIC "$@"
+' >/usr/local/bin/clang++
+chmod +x /usr/local/bin/clang /usr/local/bin/clang++
+
+# The BoringSSL tests use Go, and cgo would look for gcc.
+export CGO_ENABLED=0
+
+# Verbatim instructions from BoringCrypto build docs.
+printf "set(CMAKE_C_COMPILER \"clang\")\nset(CMAKE_CXX_COMPILER \"clang++\")\n" >${HOME}/toolchain
+cd boringssl
+mkdir build && cd build && cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=${HOME}/toolchain -DFIPS=1 -DCMAKE_BUILD_TYPE=Release ..
+ninja
+ninja run_tests
+
+cd ../..
+
+if [ "$(./boringssl/build/tool/bssl isfips)" != 1 ]; then
+ echo "NOT FIPS"
+ exit 2
+fi
+
+# Build and run test C++ program to make sure goboringcrypto.h matches openssl/*.h.
+# Also collect list of checked symbols in syms.txt
+set -x
+set -e
+cd godriver
+cat >goboringcrypto.cc <<'EOF'
+#include <cassert>
+#include "goboringcrypto0.h"
+#include "goboringcrypto1.h"
+#define check_size(t) if(sizeof(t) != sizeof(GO_ ## t)) {printf("sizeof(" #t ")=%d, but sizeof(GO_" #t ")=%d\n", (int)sizeof(t), (int)sizeof(GO_ ## t)); ret=1;}
+#define check_func(f) { auto x = f; x = _goboringcrypto_ ## f ; }
+#define check_value(n, v) if(n != v) {printf(#n "=%d, but goboringcrypto.h defines it as %d\n", (int)n, (int)v); ret=1;}
+int main() {
+int ret = 0;
+#include "goboringcrypto.x"
+return ret;
+}
+EOF
+
+awk '
+BEGIN {
+ exitcode = 0
+}
+
+# Ignore comments, #includes, blank lines.
+/^\/\// || /^#/ || NF == 0 { next }
+
+# Ignore unchecked declarations.
+/\/\*unchecked/ { next }
+
+# Check enum values.
+!enum && $1 == "enum" && $NF == "{" {
+ enum = 1
+ next
+}
+enum && $1 == "};" {
+ enum = 0
+ next
+}
+enum && NF == 3 && $2 == "=" {
+ name = $1
+ sub(/^GO_/, "", name)
+ val = $3
+ sub(/,$/, "", val)
+ print "check_value(" name ", " val ")" > "goboringcrypto.x"
+ next
+}
+enum {
+ print FILENAME ":" NR ": unexpected line in enum: " $0 > "/dev/stderr"
+ exitcode = 1
+ next
+}
+
+# Check struct sizes.
+/^typedef struct / && $NF ~ /^GO_/ {
+ name = $NF
+ sub(/^GO_/, "", name)
+ sub(/;$/, "", name)
+ print "check_size(" name ")" > "goboringcrypto.x"
+ next
+}
+
+# Check function prototypes.
+/^(const )?[^ ]+ \**_goboringcrypto_.*\(/ {
+ name = $2
+ if($1 == "const")
+ name = $3
+ sub(/^\**_goboringcrypto_/, "", name)
+ sub(/\(.*/, "", name)
+ print "check_func(" name ")" > "goboringcrypto.x"
+ print name > "syms.txt"
+ next
+}
+
+{
+ print FILENAME ":" NR ": unexpected line: " $0 > "/dev/stderr"
+ exitcode = 1
+}
+
+END {
+ exit exitcode
+}
+' goboringcrypto.h
+
+cat goboringcrypto.h | awk '
+ /^\/\/ #include/ {sub(/\/\//, ""); print > "goboringcrypto0.h"; next}
+ /typedef struct|enum ([a-z_]+ )?{|^[ \t]/ {print;next}
+ {gsub(/GO_/, ""); gsub(/enum go_/, "enum "); print}
+' >goboringcrypto1.h
+clang++ -std=c++11 -fPIC -I../boringssl/include -O2 -o a.out goboringcrypto.cc
+./a.out || exit 2
+
+# Prepare copy of libcrypto.a with only the checked functions renamed and exported.
+# All other symbols are left alone and hidden.
+echo BORINGSSL_bcm_power_on_self_test >>syms.txt
+awk '{print "_goboringcrypto_" $0 }' syms.txt >globals.txt
+awk '{print $0 " _goboringcrypto_" $0 }' syms.txt >renames.txt
+objcopy --globalize-symbol=BORINGSSL_bcm_power_on_self_test ../boringssl/build/crypto/libcrypto.a libcrypto.a
+
+# clang implements u128 % u128 -> u128 by calling __umodti3,
+# which is in libgcc. To make the result self-contained even if linking
+# against a different compiler version, link our own __umodti3 into the syso.
+# This one is specialized so it only expects divisors below 2^64,
+# which is all BoringCrypto uses. (Otherwise it will seg fault.)
+cat >umod.s <<'EOF'
+# tu_int __umodti3(tu_int x, tu_int y)
+# x is rsi:rdi, y is rcx:rdx, return result is rdx:rax.
+.globl __umodti3
+__umodti3:
+ # specialized to u128 % u64, so verify that
+ test %rcx,%rcx
+ jne 1f
+
+ # save divisor
+ movq %rdx, %r8
+
+ # reduce top 64 bits mod divisor
+ movq %rsi, %rax
+ xorl %edx, %edx
+ divq %r8
+
+ # reduce full 128-bit mod divisor
+ # quotient fits in 64 bits because top 64 bits have been reduced < divisor.
+ # (even though we only care about the remainder, divq also computes
+ # the quotient, and it will trap if the quotient is too large.)
+ movq %rdi, %rax
+ divq %r8
+
+ # expand remainder to 128 for return
+ movq %rdx, %rax
+ xorl %edx, %edx
+ ret
+
+1:
+ # crash - only want 64-bit divisor
+ xorl %ecx, %ecx
+ movl %ecx, 0(%ecx)
+ jmp 1b
+
+.section .note.GNU-stack,"",@progbits
+EOF
+clang -c -o umod.o umod.s
+
+ld -r -nostdlib --whole-archive -o goboringcrypto.o libcrypto.a umod.o
+echo __umodti3 _goboringcrypto___umodti3 >>renames.txt
+objcopy --remove-section=.llvm_addrsig goboringcrypto.o goboringcrypto1.o # b/179161016
+objcopy --redefine-syms=renames.txt goboringcrypto1.o goboringcrypto2.o
+objcopy --keep-global-symbols=globals.txt goboringcrypto2.o goboringcrypto_linux_amd64.syso
+
+# Done!
+ls -l goboringcrypto_linux_amd64.syso
+sha256sum goboringcrypto_linux_amd64.syso
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package boring provides access to BoringCrypto implementation functions.
+// Check the constant Enabled to find out whether BoringCrypto is available.
+// If BoringCrypto is not available, the functions in this package all panic.
+package boring
+
+// Enabled reports whether BoringCrypto is available.
+// When enabled is false, all functions in this package panic.
+//
+// BoringCrypto is only available on linux/amd64 systems.
+const Enabled = available
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,amd64
+// +build !android
+// +build !cmd_go_bootstrap
+// +build !msan
+
+package boring
+
+// #include "goboringcrypto.h"
+import "C"
+import (
+ "encoding/asn1"
+ "errors"
+ "math/big"
+ "runtime"
+ "unsafe"
+)
+
+type ecdsaSignature struct {
+ R, S *big.Int
+}
+
+type PrivateKeyECDSA struct {
+ key *C.GO_EC_KEY
+}
+
+func (k *PrivateKeyECDSA) finalize() {
+ C._goboringcrypto_EC_KEY_free(k.key)
+}
+
+type PublicKeyECDSA struct {
+ key *C.GO_EC_KEY
+}
+
+func (k *PublicKeyECDSA) finalize() {
+ C._goboringcrypto_EC_KEY_free(k.key)
+}
+
+var errUnknownCurve = errors.New("boringcrypto: unknown elliptic curve")
+
+func curveNID(curve string) (C.int, error) {
+ switch curve {
+ case "P-224":
+ return C.GO_NID_secp224r1, nil
+ case "P-256":
+ return C.GO_NID_X9_62_prime256v1, nil
+ case "P-384":
+ return C.GO_NID_secp384r1, nil
+ case "P-521":
+ return C.GO_NID_secp521r1, nil
+ }
+ return 0, errUnknownCurve
+}
+
+func NewPublicKeyECDSA(curve string, X, Y *big.Int) (*PublicKeyECDSA, error) {
+ key, err := newECKey(curve, X, Y)
+ if err != nil {
+ return nil, err
+ }
+ k := &PublicKeyECDSA{key}
+ // Note: Because of the finalizer, any time k.key is passed to cgo,
+ // that call must be followed by a call to runtime.KeepAlive(k),
+ // to make sure k is not collected (and finalized) before the cgo
+ // call returns.
+ runtime.SetFinalizer(k, (*PublicKeyECDSA).finalize)
+ return k, nil
+}
+
+func newECKey(curve string, X, Y *big.Int) (*C.GO_EC_KEY, error) {
+ nid, err := curveNID(curve)
+ if err != nil {
+ return nil, err
+ }
+ key := C._goboringcrypto_EC_KEY_new_by_curve_name(nid)
+ if key == nil {
+ return nil, fail("EC_KEY_new_by_curve_name")
+ }
+ group := C._goboringcrypto_EC_KEY_get0_group(key)
+ pt := C._goboringcrypto_EC_POINT_new(group)
+ if pt == nil {
+ C._goboringcrypto_EC_KEY_free(key)
+ return nil, fail("EC_POINT_new")
+ }
+ bx := bigToBN(X)
+ by := bigToBN(Y)
+ ok := bx != nil && by != nil && C._goboringcrypto_EC_POINT_set_affine_coordinates_GFp(group, pt, bx, by, nil) != 0 &&
+ C._goboringcrypto_EC_KEY_set_public_key(key, pt) != 0
+ if bx != nil {
+ C._goboringcrypto_BN_free(bx)
+ }
+ if by != nil {
+ C._goboringcrypto_BN_free(by)
+ }
+ C._goboringcrypto_EC_POINT_free(pt)
+ if !ok {
+ C._goboringcrypto_EC_KEY_free(key)
+ return nil, fail("EC_POINT_set_affine_coordinates_GFp")
+ }
+ return key, nil
+}
+
+func NewPrivateKeyECDSA(curve string, X, Y *big.Int, D *big.Int) (*PrivateKeyECDSA, error) {
+ key, err := newECKey(curve, X, Y)
+ if err != nil {
+ return nil, err
+ }
+ bd := bigToBN(D)
+ ok := bd != nil && C._goboringcrypto_EC_KEY_set_private_key(key, bd) != 0
+ if bd != nil {
+ C._goboringcrypto_BN_free(bd)
+ }
+ if !ok {
+ C._goboringcrypto_EC_KEY_free(key)
+ return nil, fail("EC_KEY_set_private_key")
+ }
+ k := &PrivateKeyECDSA{key}
+ // Note: Because of the finalizer, any time k.key is passed to cgo,
+ // that call must be followed by a call to runtime.KeepAlive(k),
+ // to make sure k is not collected (and finalized) before the cgo
+ // call returns.
+ runtime.SetFinalizer(k, (*PrivateKeyECDSA).finalize)
+ return k, nil
+}
+
+func SignECDSA(priv *PrivateKeyECDSA, hash []byte) (r, s *big.Int, err error) {
+ // We could use ECDSA_do_sign instead but would need to convert
+ // the resulting BIGNUMs to *big.Int form. If we're going to do a
+ // conversion, converting the ASN.1 form is more convenient and
+ // likely not much more expensive.
+ sig, err := SignMarshalECDSA(priv, hash)
+ if err != nil {
+ return nil, nil, err
+ }
+ var esig ecdsaSignature
+ if _, err := asn1.Unmarshal(sig, &esig); err != nil {
+ return nil, nil, err
+ }
+ return esig.R, esig.S, nil
+}
+
+func SignMarshalECDSA(priv *PrivateKeyECDSA, hash []byte) ([]byte, error) {
+ size := C._goboringcrypto_ECDSA_size(priv.key)
+ sig := make([]byte, size)
+ var sigLen C.uint
+ if C._goboringcrypto_ECDSA_sign(0, base(hash), C.size_t(len(hash)), (*C.uint8_t)(unsafe.Pointer(&sig[0])), &sigLen, priv.key) == 0 {
+ return nil, fail("ECDSA_sign")
+ }
+ runtime.KeepAlive(priv)
+ return sig[:sigLen], nil
+}
+
+func VerifyECDSA(pub *PublicKeyECDSA, hash []byte, r, s *big.Int) bool {
+ // We could use ECDSA_do_verify instead but would need to convert
+ // r and s to BIGNUM form. If we're going to do a conversion, marshaling
+ // to ASN.1 is more convenient and likely not much more expensive.
+ sig, err := asn1.Marshal(ecdsaSignature{r, s})
+ if err != nil {
+ return false
+ }
+ ok := C._goboringcrypto_ECDSA_verify(0, base(hash), C.size_t(len(hash)), (*C.uint8_t)(unsafe.Pointer(&sig[0])), C.size_t(len(sig)), pub.key) != 0
+ runtime.KeepAlive(pub)
+ return ok
+}
+
+func GenerateKeyECDSA(curve string) (X, Y, D *big.Int, err error) {
+ nid, err := curveNID(curve)
+ if err != nil {
+ return nil, nil, nil, err
+ }
+ key := C._goboringcrypto_EC_KEY_new_by_curve_name(nid)
+ if key == nil {
+ return nil, nil, nil, fail("EC_KEY_new_by_curve_name")
+ }
+ defer C._goboringcrypto_EC_KEY_free(key)
+ if C._goboringcrypto_EC_KEY_generate_key_fips(key) == 0 {
+ return nil, nil, nil, fail("EC_KEY_generate_key_fips")
+ }
+ group := C._goboringcrypto_EC_KEY_get0_group(key)
+ pt := C._goboringcrypto_EC_KEY_get0_public_key(key)
+ bd := C._goboringcrypto_EC_KEY_get0_private_key(key)
+ if pt == nil || bd == nil {
+ return nil, nil, nil, fail("EC_KEY_get0_private_key")
+ }
+ bx := C._goboringcrypto_BN_new()
+ if bx == nil {
+ return nil, nil, nil, fail("BN_new")
+ }
+ defer C._goboringcrypto_BN_free(bx)
+ by := C._goboringcrypto_BN_new()
+ if by == nil {
+ return nil, nil, nil, fail("BN_new")
+ }
+ defer C._goboringcrypto_BN_free(by)
+ if C._goboringcrypto_EC_POINT_get_affine_coordinates_GFp(group, pt, bx, by, nil) == 0 {
+ return nil, nil, nil, fail("EC_POINT_get_affine_coordinates_GFp")
+ }
+ return bnToBig(bx), bnToBig(by), bnToBig(bd), nil
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// runtime_arg0 is declared in tls.go without a body.
+// It's provided by package runtime,
+// but the go command doesn't know that.
+// Having this assembly file keeps the go command
+// from complaining about the missing body
+// (because the implementation might be here).
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package fipstls allows control over whether crypto/tls requires FIPS-approved settings.
+// This package's effects are independent of the use of the BoringCrypto implementation.
+package fipstls
+
+import "sync/atomic"
+
+var required uint32
+
+// Force forces crypto/tls to restrict TLS configurations to FIPS-approved settings.
+// By design, this call is impossible to undo (except in tests).
+//
+// Note that this call has an effect even in programs using
+// standard crypto (that is, even when Enabled = false).
+func Force() {
+ atomic.StoreUint32(&required, 1)
+}
+
+// Abandon allows non-FIPS-approved settings.
+// If called from a non-test binary, it panics.
+func Abandon() {
+ // Note: Not using boring.UnreachableExceptTests because we want
+ // this test to happen even when boring.Enabled = false.
+ name := runtime_arg0()
+ // Allow _test for Go command, .test for Bazel,
+ // NaClMain for NaCl (where all binaries run as NaClMain),
+ // and empty string for Windows (where runtime_arg0 can't easily find the name).
+ // Since this is an internal package, testing that this isn't used on the
+ // other operating systems should suffice to catch any mistakes.
+ if !hasSuffix(name, "_test") && !hasSuffix(name, ".test") && name != "NaClMain" && name != "" {
+ panic("fipstls: invalid use of Abandon in " + name)
+ }
+ atomic.StoreUint32(&required, 0)
+}
+
+// provided by runtime
+func runtime_arg0() string
+
+func hasSuffix(s, t string) bool {
+ return len(s) > len(t) && s[len(s)-len(t):] == t
+}
+
+// Required reports whether FIPS-approved settings are required.
+func Required() bool {
+ return atomic.LoadUint32(&required) != 0
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This header file describes the BoringCrypto ABI as built for use in Go.
+// The BoringCrypto build for Go (which generates goboringcrypto_*.syso)
+// takes the standard libcrypto.a from BoringCrypto and adds the prefix
+// _goboringcrypto_ to every symbol, to avoid possible conflicts with
+// code wrapping a different BoringCrypto or OpenSSL.
+//
+// To make this header standalone (so that building Go does not require
+// having a full set of BoringCrypto headers), the struct details are not here.
+// Instead, while building the syso, we compile and run a C++ program
+// that checks that the sizes match. The program also checks (during compilation)
+// that all the function prototypes match the BoringCrypto equivalents.
+// The generation of the checking program depends on the declaration
+// forms used below (one line for most, multiline for enums).
+
+#include <stdlib.h> // size_t
+#include <stdint.h> // uint8_t
+
+// This symbol is hidden in BoringCrypto and marked as a constructor,
+// but cmd/link's internal linking mode doesn't handle constructors.
+// Until it does, we've exported the symbol and can call it explicitly.
+// (If using external linking mode, it will therefore be called twice,
+// once explicitly and once as a constructor, but that's OK.)
+/*unchecked*/ void _goboringcrypto_BORINGSSL_bcm_power_on_self_test(void);
+
+// #include <openssl/crypto.h>
+int _goboringcrypto_FIPS_mode(void);
+void* _goboringcrypto_OPENSSL_malloc(size_t);
+
+// #include <openssl/rand.h>
+int _goboringcrypto_RAND_bytes(uint8_t*, size_t);
+
+// #include <openssl/nid.h>
+enum {
+ GO_NID_md5_sha1 = 114,
+
+ GO_NID_secp224r1 = 713,
+ GO_NID_X9_62_prime256v1 = 415,
+ GO_NID_secp384r1 = 715,
+ GO_NID_secp521r1 = 716,
+
+ GO_NID_sha224 = 675,
+ GO_NID_sha256 = 672,
+ GO_NID_sha384 = 673,
+ GO_NID_sha512 = 674,
+};
+
+// #include <openssl/sha.h>
+typedef struct GO_SHA_CTX { char data[96]; } GO_SHA_CTX;
+int _goboringcrypto_SHA1_Init(GO_SHA_CTX*);
+int _goboringcrypto_SHA1_Update(GO_SHA_CTX*, const void*, size_t);
+int _goboringcrypto_SHA1_Final(uint8_t*, GO_SHA_CTX*);
+
+typedef struct GO_SHA256_CTX { char data[48+64]; } GO_SHA256_CTX;
+int _goboringcrypto_SHA224_Init(GO_SHA256_CTX*);
+int _goboringcrypto_SHA224_Update(GO_SHA256_CTX*, const void*, size_t);
+int _goboringcrypto_SHA224_Final(uint8_t*, GO_SHA256_CTX*);
+int _goboringcrypto_SHA256_Init(GO_SHA256_CTX*);
+int _goboringcrypto_SHA256_Update(GO_SHA256_CTX*, const void*, size_t);
+int _goboringcrypto_SHA256_Final(uint8_t*, GO_SHA256_CTX*);
+
+typedef struct GO_SHA512_CTX { char data[88+128]; } GO_SHA512_CTX;
+int _goboringcrypto_SHA384_Init(GO_SHA512_CTX*);
+int _goboringcrypto_SHA384_Update(GO_SHA512_CTX*, const void*, size_t);
+int _goboringcrypto_SHA384_Final(uint8_t*, GO_SHA512_CTX*);
+int _goboringcrypto_SHA512_Init(GO_SHA512_CTX*);
+int _goboringcrypto_SHA512_Update(GO_SHA512_CTX*, const void*, size_t);
+int _goboringcrypto_SHA512_Final(uint8_t*, GO_SHA512_CTX*);
+
+// #include <openssl/digest.h>
+/*unchecked (opaque)*/ typedef struct GO_EVP_MD { char data[1]; } GO_EVP_MD;
+const GO_EVP_MD* _goboringcrypto_EVP_md4(void);
+const GO_EVP_MD* _goboringcrypto_EVP_md5(void);
+const GO_EVP_MD* _goboringcrypto_EVP_md5_sha1(void);
+const GO_EVP_MD* _goboringcrypto_EVP_sha1(void);
+const GO_EVP_MD* _goboringcrypto_EVP_sha224(void);
+const GO_EVP_MD* _goboringcrypto_EVP_sha256(void);
+const GO_EVP_MD* _goboringcrypto_EVP_sha384(void);
+const GO_EVP_MD* _goboringcrypto_EVP_sha512(void);
+int _goboringcrypto_EVP_MD_type(const GO_EVP_MD*);
+size_t _goboringcrypto_EVP_MD_size(const GO_EVP_MD*);
+
+// #include <openssl/hmac.h>
+typedef struct GO_HMAC_CTX { char data[104]; } GO_HMAC_CTX;
+void _goboringcrypto_HMAC_CTX_init(GO_HMAC_CTX*);
+void _goboringcrypto_HMAC_CTX_cleanup(GO_HMAC_CTX*);
+int _goboringcrypto_HMAC_Init(GO_HMAC_CTX*, const void*, int, const GO_EVP_MD*);
+int _goboringcrypto_HMAC_Update(GO_HMAC_CTX*, const uint8_t*, size_t);
+int _goboringcrypto_HMAC_Final(GO_HMAC_CTX*, uint8_t*, unsigned int*);
+size_t _goboringcrypto_HMAC_size(const GO_HMAC_CTX*);
+int _goboringcrypto_HMAC_CTX_copy_ex(GO_HMAC_CTX *dest, const GO_HMAC_CTX *src);
+
+// #include <openssl/aes.h>
+typedef struct GO_AES_KEY { char data[244]; } GO_AES_KEY;
+int _goboringcrypto_AES_set_encrypt_key(const uint8_t*, unsigned int, GO_AES_KEY*);
+int _goboringcrypto_AES_set_decrypt_key(const uint8_t*, unsigned int, GO_AES_KEY*);
+void _goboringcrypto_AES_encrypt(const uint8_t*, uint8_t*, const GO_AES_KEY*);
+void _goboringcrypto_AES_decrypt(const uint8_t*, uint8_t*, const GO_AES_KEY*);
+void _goboringcrypto_AES_ctr128_encrypt(const uint8_t*, uint8_t*, size_t, const GO_AES_KEY*, uint8_t*, uint8_t*, unsigned int*);
+enum {
+ GO_AES_ENCRYPT = 1,
+ GO_AES_DECRYPT = 0
+};
+void _goboringcrypto_AES_cbc_encrypt(const uint8_t*, uint8_t*, size_t, const GO_AES_KEY*, uint8_t*, const int);
+
+// #include <openssl/aead.h>
+/*unchecked (opaque)*/ typedef struct GO_EVP_AEAD { char data[1]; } GO_EVP_AEAD;
+/*unchecked (opaque)*/ typedef struct GO_ENGINE { char data[1]; } GO_ENGINE;
+const GO_EVP_AEAD* _goboringcrypto_EVP_aead_aes_128_gcm(void);
+const GO_EVP_AEAD* _goboringcrypto_EVP_aead_aes_256_gcm(void);
+enum {
+ GO_EVP_AEAD_DEFAULT_TAG_LENGTH = 0
+};
+size_t _goboringcrypto_EVP_AEAD_key_length(const GO_EVP_AEAD*);
+size_t _goboringcrypto_EVP_AEAD_nonce_length(const GO_EVP_AEAD*);
+size_t _goboringcrypto_EVP_AEAD_max_overhead(const GO_EVP_AEAD*);
+size_t _goboringcrypto_EVP_AEAD_max_tag_len(const GO_EVP_AEAD*);
+typedef struct GO_EVP_AEAD_CTX { char data[600]; } GO_EVP_AEAD_CTX;
+void _goboringcrypto_EVP_AEAD_CTX_zero(GO_EVP_AEAD_CTX*);
+int _goboringcrypto_EVP_AEAD_CTX_init(GO_EVP_AEAD_CTX*, const GO_EVP_AEAD*, const uint8_t*, size_t, size_t, GO_ENGINE*);
+void _goboringcrypto_EVP_AEAD_CTX_cleanup(GO_EVP_AEAD_CTX*);
+int _goboringcrypto_EVP_AEAD_CTX_seal(const GO_EVP_AEAD_CTX*, uint8_t*, size_t*, size_t, const uint8_t*, size_t, const uint8_t*, size_t, const uint8_t*, size_t);
+int _goboringcrypto_EVP_AEAD_CTX_open(const GO_EVP_AEAD_CTX*, uint8_t*, size_t*, size_t, const uint8_t*, size_t, const uint8_t*, size_t, const uint8_t*, size_t);
+const GO_EVP_AEAD* _goboringcrypto_EVP_aead_aes_128_gcm_tls12(void);
+const GO_EVP_AEAD* _goboringcrypto_EVP_aead_aes_256_gcm_tls12(void);
+enum go_evp_aead_direction_t {
+ go_evp_aead_open = 0,
+ go_evp_aead_seal = 1
+};
+int _goboringcrypto_EVP_AEAD_CTX_init_with_direction(GO_EVP_AEAD_CTX*, const GO_EVP_AEAD*, const uint8_t*, size_t, size_t, enum go_evp_aead_direction_t);
+
+// #include <openssl/bn.h>
+/*unchecked (opaque)*/ typedef struct GO_BN_CTX { char data[1]; } GO_BN_CTX;
+typedef struct GO_BIGNUM { char data[24]; } GO_BIGNUM;
+GO_BIGNUM* _goboringcrypto_BN_new(void);
+void _goboringcrypto_BN_free(GO_BIGNUM*);
+unsigned _goboringcrypto_BN_num_bits(const GO_BIGNUM*);
+unsigned _goboringcrypto_BN_num_bytes(const GO_BIGNUM*);
+int _goboringcrypto_BN_is_negative(const GO_BIGNUM*);
+GO_BIGNUM* _goboringcrypto_BN_bin2bn(const uint8_t*, size_t, GO_BIGNUM*);
+size_t _goboringcrypto_BN_bn2bin(const GO_BIGNUM*, uint8_t*);
+
+// #include <openssl/ec.h>
+/*unchecked (opaque)*/ typedef struct GO_EC_GROUP { char data[1]; } GO_EC_GROUP;
+GO_EC_GROUP* _goboringcrypto_EC_GROUP_new_by_curve_name(int);
+void _goboringcrypto_EC_GROUP_free(GO_EC_GROUP*);
+
+/*unchecked (opaque)*/ typedef struct GO_EC_POINT { char data[1]; } GO_EC_POINT;
+GO_EC_POINT* _goboringcrypto_EC_POINT_new(const GO_EC_GROUP*);
+void _goboringcrypto_EC_POINT_free(GO_EC_POINT*);
+int _goboringcrypto_EC_POINT_get_affine_coordinates_GFp(const GO_EC_GROUP*, const GO_EC_POINT*, GO_BIGNUM*, GO_BIGNUM*, GO_BN_CTX*);
+int _goboringcrypto_EC_POINT_set_affine_coordinates_GFp(const GO_EC_GROUP*, GO_EC_POINT*, const GO_BIGNUM*, const GO_BIGNUM*, GO_BN_CTX*);
+
+// #include <openssl/ec_key.h>
+/*unchecked (opaque)*/ typedef struct GO_EC_KEY { char data[1]; } GO_EC_KEY;
+GO_EC_KEY* _goboringcrypto_EC_KEY_new(void);
+GO_EC_KEY* _goboringcrypto_EC_KEY_new_by_curve_name(int);
+void _goboringcrypto_EC_KEY_free(GO_EC_KEY*);
+const GO_EC_GROUP* _goboringcrypto_EC_KEY_get0_group(const GO_EC_KEY*);
+int _goboringcrypto_EC_KEY_generate_key_fips(GO_EC_KEY*);
+int _goboringcrypto_EC_KEY_set_private_key(GO_EC_KEY*, const GO_BIGNUM*);
+int _goboringcrypto_EC_KEY_set_public_key(GO_EC_KEY*, const GO_EC_POINT*);
+int _goboringcrypto_EC_KEY_is_opaque(const GO_EC_KEY*);
+const GO_BIGNUM* _goboringcrypto_EC_KEY_get0_private_key(const GO_EC_KEY*);
+const GO_EC_POINT* _goboringcrypto_EC_KEY_get0_public_key(const GO_EC_KEY*);
+// TODO: EC_KEY_check_fips?
+
+// #include <openssl/ecdsa.h>
+typedef struct GO_ECDSA_SIG { char data[16]; } GO_ECDSA_SIG;
+GO_ECDSA_SIG* _goboringcrypto_ECDSA_SIG_new(void);
+void _goboringcrypto_ECDSA_SIG_free(GO_ECDSA_SIG*);
+GO_ECDSA_SIG* _goboringcrypto_ECDSA_do_sign(const uint8_t*, size_t, const GO_EC_KEY*);
+int _goboringcrypto_ECDSA_do_verify(const uint8_t*, size_t, const GO_ECDSA_SIG*, const GO_EC_KEY*);
+int _goboringcrypto_ECDSA_sign(int, const uint8_t*, size_t, uint8_t*, unsigned int*, const GO_EC_KEY*);
+size_t _goboringcrypto_ECDSA_size(const GO_EC_KEY*);
+int _goboringcrypto_ECDSA_verify(int, const uint8_t*, size_t, const uint8_t*, size_t, const GO_EC_KEY*);
+
+// #include <openssl/rsa.h>
+
+// Note: order of struct fields here is unchecked.
+typedef struct GO_RSA { void *meth; GO_BIGNUM *n, *e, *d, *p, *q, *dmp1, *dmq1, *iqmp; char data[160]; } GO_RSA;
+/*unchecked (opaque)*/ typedef struct GO_BN_GENCB { char data[1]; } GO_BN_GENCB;
+GO_RSA* _goboringcrypto_RSA_new(void);
+void _goboringcrypto_RSA_free(GO_RSA*);
+void _goboringcrypto_RSA_get0_key(const GO_RSA*, const GO_BIGNUM **n, const GO_BIGNUM **e, const GO_BIGNUM **d);
+void _goboringcrypto_RSA_get0_factors(const GO_RSA*, const GO_BIGNUM **p, const GO_BIGNUM **q);
+void _goboringcrypto_RSA_get0_crt_params(const GO_RSA*, const GO_BIGNUM **dmp1, const GO_BIGNUM **dmp2, const GO_BIGNUM **iqmp);
+int _goboringcrypto_RSA_generate_key_ex(GO_RSA*, int, const GO_BIGNUM*, GO_BN_GENCB*);
+int _goboringcrypto_RSA_generate_key_fips(GO_RSA*, int, GO_BN_GENCB*);
+enum {
+ GO_RSA_PKCS1_PADDING = 1,
+ GO_RSA_NO_PADDING = 3,
+ GO_RSA_PKCS1_OAEP_PADDING = 4,
+ GO_RSA_PKCS1_PSS_PADDING = 6,
+};
+int _goboringcrypto_RSA_encrypt(GO_RSA*, size_t *out_len, uint8_t *out, size_t max_out, const uint8_t *in, size_t in_len, int padding);
+int _goboringcrypto_RSA_decrypt(GO_RSA*, size_t *out_len, uint8_t *out, size_t max_out, const uint8_t *in, size_t in_len, int padding);
+int _goboringcrypto_RSA_sign(int hash_nid, const uint8_t* in, unsigned int in_len, uint8_t *out, unsigned int *out_len, GO_RSA*);
+int _goboringcrypto_RSA_sign_pss_mgf1(GO_RSA*, size_t *out_len, uint8_t *out, size_t max_out, const uint8_t *in, size_t in_len, const GO_EVP_MD *md, const GO_EVP_MD *mgf1_md, int salt_len);
+int _goboringcrypto_RSA_sign_raw(GO_RSA*, size_t *out_len, uint8_t *out, size_t max_out, const uint8_t *in, size_t in_len, int padding);
+int _goboringcrypto_RSA_verify(int hash_nid, const uint8_t *msg, size_t msg_len, const uint8_t *sig, size_t sig_len, GO_RSA*);
+int _goboringcrypto_RSA_verify_pss_mgf1(GO_RSA*, const uint8_t *msg, size_t msg_len, const GO_EVP_MD *md, const GO_EVP_MD *mgf1_md, int salt_len, const uint8_t *sig, size_t sig_len);
+int _goboringcrypto_RSA_verify_raw(GO_RSA*, size_t *out_len, uint8_t *out, size_t max_out, const uint8_t *in, size_t in_len, int padding);
+unsigned _goboringcrypto_RSA_size(const GO_RSA*);
+int _goboringcrypto_RSA_is_opaque(const GO_RSA*);
+int _goboringcrypto_RSA_check_key(const GO_RSA*);
+int _goboringcrypto_RSA_check_fips(GO_RSA*);
+GO_RSA* _goboringcrypto_RSA_public_key_from_bytes(const uint8_t*, size_t);
+GO_RSA* _goboringcrypto_RSA_private_key_from_bytes(const uint8_t*, size_t);
+int _goboringcrypto_RSA_public_key_to_bytes(uint8_t**, size_t*, const GO_RSA*);
+int _goboringcrypto_RSA_private_key_to_bytes(uint8_t**, size_t*, const GO_RSA*);
+
+// #include <openssl/evp.h>
+/*unchecked (opaque)*/ typedef struct GO_EVP_PKEY { char data[1]; } GO_EVP_PKEY;
+GO_EVP_PKEY* _goboringcrypto_EVP_PKEY_new(void);
+void _goboringcrypto_EVP_PKEY_free(GO_EVP_PKEY*);
+int _goboringcrypto_EVP_PKEY_set1_RSA(GO_EVP_PKEY*, GO_RSA*);
+
+/*unchecked (opaque)*/ typedef struct GO_EVP_PKEY_CTX { char data[1]; } GO_EVP_PKEY_CTX;
+
+GO_EVP_PKEY_CTX* _goboringcrypto_EVP_PKEY_CTX_new(GO_EVP_PKEY*, GO_ENGINE*);
+void _goboringcrypto_EVP_PKEY_CTX_free(GO_EVP_PKEY_CTX*);
+int _goboringcrypto_EVP_PKEY_CTX_set0_rsa_oaep_label(GO_EVP_PKEY_CTX*, uint8_t*, size_t);
+int _goboringcrypto_EVP_PKEY_CTX_set_rsa_oaep_md(GO_EVP_PKEY_CTX*, const GO_EVP_MD*);
+int _goboringcrypto_EVP_PKEY_CTX_set_rsa_padding(GO_EVP_PKEY_CTX*, int padding);
+int _goboringcrypto_EVP_PKEY_decrypt(GO_EVP_PKEY_CTX*, uint8_t*, size_t*, const uint8_t*, size_t);
+int _goboringcrypto_EVP_PKEY_encrypt(GO_EVP_PKEY_CTX*, uint8_t*, size_t*, const uint8_t*, size_t);
+int _goboringcrypto_EVP_PKEY_decrypt_init(GO_EVP_PKEY_CTX*);
+int _goboringcrypto_EVP_PKEY_encrypt_init(GO_EVP_PKEY_CTX*);
+int _goboringcrypto_EVP_PKEY_CTX_set_rsa_mgf1_md(GO_EVP_PKEY_CTX*, const GO_EVP_MD*);
+int _goboringcrypto_EVP_PKEY_CTX_set_rsa_pss_saltlen(GO_EVP_PKEY_CTX*, int);
+int _goboringcrypto_EVP_PKEY_sign_init(GO_EVP_PKEY_CTX*);
+int _goboringcrypto_EVP_PKEY_verify_init(GO_EVP_PKEY_CTX*);
+int _goboringcrypto_EVP_PKEY_sign(GO_EVP_PKEY_CTX*, uint8_t*, size_t*, const uint8_t*, size_t);
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,amd64
+// +build !android
+// +build !cmd_go_bootstrap
+// +build !msan
+
+package boring
+
+// #include "goboringcrypto.h"
+import "C"
+import (
+ "crypto"
+ "hash"
+ "runtime"
+ "unsafe"
+)
+
+// hashToMD converts a hash.Hash implementation from this package
+// to a BoringCrypto *C.GO_EVP_MD.
+func hashToMD(h hash.Hash) *C.GO_EVP_MD {
+ switch h.(type) {
+ case *sha1Hash:
+ return C._goboringcrypto_EVP_sha1()
+ case *sha224Hash:
+ return C._goboringcrypto_EVP_sha224()
+ case *sha256Hash:
+ return C._goboringcrypto_EVP_sha256()
+ case *sha384Hash:
+ return C._goboringcrypto_EVP_sha384()
+ case *sha512Hash:
+ return C._goboringcrypto_EVP_sha512()
+ }
+ return nil
+}
+
+// cryptoHashToMD converts a crypto.Hash
+// to a BoringCrypto *C.GO_EVP_MD.
+func cryptoHashToMD(ch crypto.Hash) *C.GO_EVP_MD {
+ switch ch {
+ case crypto.MD5:
+ return C._goboringcrypto_EVP_md5()
+ case crypto.MD5SHA1:
+ return C._goboringcrypto_EVP_md5_sha1()
+ case crypto.SHA1:
+ return C._goboringcrypto_EVP_sha1()
+ case crypto.SHA224:
+ return C._goboringcrypto_EVP_sha224()
+ case crypto.SHA256:
+ return C._goboringcrypto_EVP_sha256()
+ case crypto.SHA384:
+ return C._goboringcrypto_EVP_sha384()
+ case crypto.SHA512:
+ return C._goboringcrypto_EVP_sha512()
+ }
+ return nil
+}
+
+// NewHMAC returns a new HMAC using BoringCrypto.
+// The function h must return a hash implemented by
+// BoringCrypto (for example, h could be boring.NewSHA256).
+// If h is not recognized, NewHMAC returns nil.
+func NewHMAC(h func() hash.Hash, key []byte) hash.Hash {
+ ch := h()
+ md := hashToMD(ch)
+ if md == nil {
+ return nil
+ }
+
+ // Note: Could hash down long keys here using EVP_Digest.
+ hkey := make([]byte, len(key))
+ copy(hkey, key)
+ hmac := &boringHMAC{
+ md: md,
+ size: ch.Size(),
+ blockSize: ch.BlockSize(),
+ key: hkey,
+ }
+ hmac.Reset()
+ return hmac
+}
+
+type boringHMAC struct {
+ md *C.GO_EVP_MD
+ ctx C.GO_HMAC_CTX
+ ctx2 C.GO_HMAC_CTX
+ size int
+ blockSize int
+ key []byte
+ sum []byte
+ needCleanup bool
+}
+
+func (h *boringHMAC) Reset() {
+ if h.needCleanup {
+ C._goboringcrypto_HMAC_CTX_cleanup(&h.ctx)
+ } else {
+ h.needCleanup = true
+ // Note: Because of the finalizer, any time h.ctx is passed to cgo,
+ // that call must be followed by a call to runtime.KeepAlive(h),
+ // to make sure h is not collected (and finalized) before the cgo
+ // call returns.
+ runtime.SetFinalizer(h, (*boringHMAC).finalize)
+ }
+ C._goboringcrypto_HMAC_CTX_init(&h.ctx)
+
+ if C._goboringcrypto_HMAC_Init(&h.ctx, unsafe.Pointer(base(h.key)), C.int(len(h.key)), h.md) == 0 {
+ panic("boringcrypto: HMAC_Init failed")
+ }
+ if int(C._goboringcrypto_HMAC_size(&h.ctx)) != h.size {
+ println("boringcrypto: HMAC size:", C._goboringcrypto_HMAC_size(&h.ctx), "!=", h.size)
+ panic("boringcrypto: HMAC size mismatch")
+ }
+ runtime.KeepAlive(h) // Next line will keep h alive too; just making doubly sure.
+ h.sum = nil
+}
+
+func (h *boringHMAC) finalize() {
+ C._goboringcrypto_HMAC_CTX_cleanup(&h.ctx)
+}
+
+func (h *boringHMAC) Write(p []byte) (int, error) {
+ if len(p) > 0 {
+ C._goboringcrypto_HMAC_Update(&h.ctx, (*C.uint8_t)(unsafe.Pointer(&p[0])), C.size_t(len(p)))
+ }
+ runtime.KeepAlive(h)
+ return len(p), nil
+}
+
+func (h *boringHMAC) Size() int {
+ return h.size
+}
+
+func (h *boringHMAC) BlockSize() int {
+ return h.blockSize
+}
+
+func (h *boringHMAC) Sum(in []byte) []byte {
+ if h.sum == nil {
+ size := h.Size()
+ h.sum = make([]byte, size)
+ }
+ // Make copy of context because Go hash.Hash mandates
+ // that Sum has no effect on the underlying stream.
+ // In particular it is OK to Sum, then Write more, then Sum again,
+ // and the second Sum acts as if the first didn't happen.
+ C._goboringcrypto_HMAC_CTX_init(&h.ctx2)
+ if C._goboringcrypto_HMAC_CTX_copy_ex(&h.ctx2, &h.ctx) == 0 {
+ panic("boringcrypto: HMAC_CTX_copy_ex failed")
+ }
+ C._goboringcrypto_HMAC_Final(&h.ctx2, (*C.uint8_t)(unsafe.Pointer(&h.sum[0])), nil)
+ C._goboringcrypto_HMAC_CTX_cleanup(&h.ctx2)
+ return append(in, h.sum...)
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !linux !amd64 !cgo android cmd_go_bootstrap msan
+
+package boring
+
+import (
+ "crypto"
+ "crypto/cipher"
+ "crypto/internal/boring/sig"
+ "hash"
+ "math/big"
+)
+
+const available = false
+
+// Unreachable marks code that should be unreachable
+// when BoringCrypto is in use. It is a no-op without BoringCrypto.
+func Unreachable() {
+ // Code that's unreachable when using BoringCrypto
+ // is exactly the code we want to detect for reporting
+ // standard Go crypto.
+ sig.StandardCrypto()
+}
+
+// UnreachableExceptTests marks code that should be unreachable
+// when BoringCrypto is in use. It is a no-op without BoringCrypto.
+func UnreachableExceptTests() {}
+
+type randReader int
+
+func (randReader) Read(b []byte) (int, error) { panic("boringcrypto: not available") }
+
+const RandReader = randReader(0)
+
+func NewSHA1() hash.Hash { panic("boringcrypto: not available") }
+func NewSHA224() hash.Hash { panic("boringcrypto: not available") }
+func NewSHA256() hash.Hash { panic("boringcrypto: not available") }
+func NewSHA384() hash.Hash { panic("boringcrypto: not available") }
+func NewSHA512() hash.Hash { panic("boringcrypto: not available") }
+
+func NewHMAC(h func() hash.Hash, key []byte) hash.Hash { panic("boringcrypto: not available") }
+
+func NewAESCipher(key []byte) (cipher.Block, error) { panic("boringcrypto: not available") }
+
+type PublicKeyECDSA struct{ _ int }
+type PrivateKeyECDSA struct{ _ int }
+
+func GenerateKeyECDSA(curve string) (X, Y, D *big.Int, err error) {
+ panic("boringcrypto: not available")
+}
+func NewPrivateKeyECDSA(curve string, X, Y, D *big.Int) (*PrivateKeyECDSA, error) {
+ panic("boringcrypto: not available")
+}
+func NewPublicKeyECDSA(curve string, X, Y *big.Int) (*PublicKeyECDSA, error) {
+ panic("boringcrypto: not available")
+}
+func SignECDSA(priv *PrivateKeyECDSA, hash []byte) (r, s *big.Int, err error) {
+ panic("boringcrypto: not available")
+}
+func SignMarshalECDSA(priv *PrivateKeyECDSA, hash []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func VerifyECDSA(pub *PublicKeyECDSA, hash []byte, r, s *big.Int) bool {
+ panic("boringcrypto: not available")
+}
+
+type PublicKeyRSA struct{ _ int }
+type PrivateKeyRSA struct{ _ int }
+
+func DecryptRSAOAEP(h hash.Hash, priv *PrivateKeyRSA, ciphertext, label []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func DecryptRSAPKCS1(priv *PrivateKeyRSA, ciphertext []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func DecryptRSANoPadding(priv *PrivateKeyRSA, ciphertext []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func EncryptRSAOAEP(h hash.Hash, pub *PublicKeyRSA, msg, label []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func EncryptRSAPKCS1(pub *PublicKeyRSA, msg []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func EncryptRSANoPadding(pub *PublicKeyRSA, msg []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func GenerateKeyRSA(bits int) (N, E, D, P, Q, Dp, Dq, Qinv *big.Int, err error) {
+ panic("boringcrypto: not available")
+}
+func NewPrivateKeyRSA(N, E, D, P, Q, Dp, Dq, Qinv *big.Int) (*PrivateKeyRSA, error) {
+ panic("boringcrypto: not available")
+}
+func NewPublicKeyRSA(N, E *big.Int) (*PublicKeyRSA, error) { panic("boringcrypto: not available") }
+func SignRSAPKCS1v15(priv *PrivateKeyRSA, h crypto.Hash, hashed []byte) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func SignRSAPSS(priv *PrivateKeyRSA, h crypto.Hash, hashed []byte, saltLen int) ([]byte, error) {
+ panic("boringcrypto: not available")
+}
+func VerifyRSAPKCS1v15(pub *PublicKeyRSA, h crypto.Hash, hashed, sig []byte) error {
+ panic("boringcrypto: not available")
+}
+func VerifyRSAPSS(pub *PublicKeyRSA, h crypto.Hash, hashed, sig []byte, saltLen int) error {
+ panic("boringcrypto: not available")
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,amd64
+// +build !android
+// +build !cmd_go_bootstrap
+// +build !msan
+
+package boring
+
+// #include "goboringcrypto.h"
+import "C"
+import "unsafe"
+
+type randReader int
+
+func (randReader) Read(b []byte) (int, error) {
+ // Note: RAND_bytes should never fail; the return value exists only for historical reasons.
+ // We check it even so.
+ if len(b) > 0 && C._goboringcrypto_RAND_bytes((*C.uint8_t)(unsafe.Pointer(&b[0])), C.size_t(len(b))) == 0 {
+ return 0, fail("RAND_bytes")
+ }
+ return len(b), nil
+}
+
+const RandReader = randReader(0)
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,amd64
+// +build !android
+// +build !cmd_go_bootstrap
+// +build !msan
+
+package boring
+
+// #include "goboringcrypto.h"
+import "C"
+import (
+ "crypto"
+ "crypto/subtle"
+ "errors"
+ "hash"
+ "math/big"
+ "runtime"
+ "strconv"
+ "unsafe"
+)
+
+func GenerateKeyRSA(bits int) (N, E, D, P, Q, Dp, Dq, Qinv *big.Int, err error) {
+ bad := func(e error) (N, E, D, P, Q, Dp, Dq, Qinv *big.Int, err error) {
+ return nil, nil, nil, nil, nil, nil, nil, nil, e
+ }
+
+ key := C._goboringcrypto_RSA_new()
+ if key == nil {
+ return bad(fail("RSA_new"))
+ }
+ defer C._goboringcrypto_RSA_free(key)
+
+ if C._goboringcrypto_RSA_generate_key_fips(key, C.int(bits), nil) == 0 {
+ return bad(fail("RSA_generate_key_fips"))
+ }
+
+ var n, e, d, p, q, dp, dq, qinv *C.GO_BIGNUM
+ C._goboringcrypto_RSA_get0_key(key, &n, &e, &d)
+ C._goboringcrypto_RSA_get0_factors(key, &p, &q)
+ C._goboringcrypto_RSA_get0_crt_params(key, &dp, &dq, &qinv)
+ return bnToBig(n), bnToBig(e), bnToBig(d), bnToBig(p), bnToBig(q), bnToBig(dp), bnToBig(dq), bnToBig(qinv), nil
+}
+
+type PublicKeyRSA struct {
+ // _key MUST NOT be accessed directly. Instead, use the withKey method.
+ _key *C.GO_RSA
+}
+
+func NewPublicKeyRSA(N, E *big.Int) (*PublicKeyRSA, error) {
+ key := C._goboringcrypto_RSA_new()
+ if key == nil {
+ return nil, fail("RSA_new")
+ }
+ if !bigToBn(&key.n, N) ||
+ !bigToBn(&key.e, E) {
+ return nil, fail("BN_bin2bn")
+ }
+ k := &PublicKeyRSA{_key: key}
+ runtime.SetFinalizer(k, (*PublicKeyRSA).finalize)
+ return k, nil
+}
+
+func (k *PublicKeyRSA) finalize() {
+ C._goboringcrypto_RSA_free(k._key)
+}
+
+func (k *PublicKeyRSA) withKey(f func(*C.GO_RSA) C.int) C.int {
+ // Because of the finalizer, any time _key is passed to cgo, that call must
+ // be followed by a call to runtime.KeepAlive, to make sure k is not
+ // collected (and finalized) before the cgo call returns.
+ defer runtime.KeepAlive(k)
+ return f(k._key)
+}
+
+type PrivateKeyRSA struct {
+ // _key MUST NOT be accessed directly. Instead, use the withKey method.
+ _key *C.GO_RSA
+}
+
+func NewPrivateKeyRSA(N, E, D, P, Q, Dp, Dq, Qinv *big.Int) (*PrivateKeyRSA, error) {
+ key := C._goboringcrypto_RSA_new()
+ if key == nil {
+ return nil, fail("RSA_new")
+ }
+ if !bigToBn(&key.n, N) ||
+ !bigToBn(&key.e, E) ||
+ !bigToBn(&key.d, D) ||
+ !bigToBn(&key.p, P) ||
+ !bigToBn(&key.q, Q) ||
+ !bigToBn(&key.dmp1, Dp) ||
+ !bigToBn(&key.dmq1, Dq) ||
+ !bigToBn(&key.iqmp, Qinv) {
+ return nil, fail("BN_bin2bn")
+ }
+ k := &PrivateKeyRSA{_key: key}
+ runtime.SetFinalizer(k, (*PrivateKeyRSA).finalize)
+ return k, nil
+}
+
+func (k *PrivateKeyRSA) finalize() {
+ C._goboringcrypto_RSA_free(k._key)
+}
+
+func (k *PrivateKeyRSA) withKey(f func(*C.GO_RSA) C.int) C.int {
+ // Because of the finalizer, any time _key is passed to cgo, that call must
+ // be followed by a call to runtime.KeepAlive, to make sure k is not
+ // collected (and finalized) before the cgo call returns.
+ defer runtime.KeepAlive(k)
+ return f(k._key)
+}
+
+func setupRSA(withKey func(func(*C.GO_RSA) C.int) C.int,
+ padding C.int, h hash.Hash, label []byte, saltLen int, ch crypto.Hash,
+ init func(*C.GO_EVP_PKEY_CTX) C.int) (pkey *C.GO_EVP_PKEY, ctx *C.GO_EVP_PKEY_CTX, err error) {
+ defer func() {
+ if err != nil {
+ if pkey != nil {
+ C._goboringcrypto_EVP_PKEY_free(pkey)
+ pkey = nil
+ }
+ if ctx != nil {
+ C._goboringcrypto_EVP_PKEY_CTX_free(ctx)
+ ctx = nil
+ }
+ }
+ }()
+
+ pkey = C._goboringcrypto_EVP_PKEY_new()
+ if pkey == nil {
+ return nil, nil, fail("EVP_PKEY_new")
+ }
+ if withKey(func(key *C.GO_RSA) C.int {
+ return C._goboringcrypto_EVP_PKEY_set1_RSA(pkey, key)
+ }) == 0 {
+ return nil, nil, fail("EVP_PKEY_set1_RSA")
+ }
+ ctx = C._goboringcrypto_EVP_PKEY_CTX_new(pkey, nil)
+ if ctx == nil {
+ return nil, nil, fail("EVP_PKEY_CTX_new")
+ }
+ if init(ctx) == 0 {
+ return nil, nil, fail("EVP_PKEY_operation_init")
+ }
+ if C._goboringcrypto_EVP_PKEY_CTX_set_rsa_padding(ctx, padding) == 0 {
+ return nil, nil, fail("EVP_PKEY_CTX_set_rsa_padding")
+ }
+ if padding == C.GO_RSA_PKCS1_OAEP_PADDING {
+ md := hashToMD(h)
+ if md == nil {
+ return nil, nil, errors.New("crypto/rsa: unsupported hash function")
+ }
+ if C._goboringcrypto_EVP_PKEY_CTX_set_rsa_oaep_md(ctx, md) == 0 {
+ return nil, nil, fail("EVP_PKEY_set_rsa_oaep_md")
+ }
+ // ctx takes ownership of label, so malloc a copy for BoringCrypto to free.
+ clabel := (*C.uint8_t)(C._goboringcrypto_OPENSSL_malloc(C.size_t(len(label))))
+ if clabel == nil {
+ return nil, nil, fail("OPENSSL_malloc")
+ }
+ copy((*[1 << 30]byte)(unsafe.Pointer(clabel))[:len(label)], label)
+ if C._goboringcrypto_EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, clabel, C.size_t(len(label))) == 0 {
+ return nil, nil, fail("EVP_PKEY_CTX_set0_rsa_oaep_label")
+ }
+ }
+ if padding == C.GO_RSA_PKCS1_PSS_PADDING {
+ if saltLen != 0 {
+ if C._goboringcrypto_EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, C.int(saltLen)) == 0 {
+ return nil, nil, fail("EVP_PKEY_set_rsa_pss_saltlen")
+ }
+ }
+ md := cryptoHashToMD(ch)
+ if md == nil {
+ return nil, nil, errors.New("crypto/rsa: unsupported hash function")
+ }
+ if C._goboringcrypto_EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md) == 0 {
+ return nil, nil, fail("EVP_PKEY_set_rsa_mgf1_md")
+ }
+ }
+
+ return pkey, ctx, nil
+}
+
+func cryptRSA(withKey func(func(*C.GO_RSA) C.int) C.int,
+ padding C.int, h hash.Hash, label []byte, saltLen int, ch crypto.Hash,
+ init func(*C.GO_EVP_PKEY_CTX) C.int,
+ crypt func(*C.GO_EVP_PKEY_CTX, *C.uint8_t, *C.size_t, *C.uint8_t, C.size_t) C.int,
+ in []byte) ([]byte, error) {
+
+ pkey, ctx, err := setupRSA(withKey, padding, h, label, saltLen, ch, init)
+ if err != nil {
+ return nil, err
+ }
+ defer C._goboringcrypto_EVP_PKEY_free(pkey)
+ defer C._goboringcrypto_EVP_PKEY_CTX_free(ctx)
+
+ var outLen C.size_t
+ if crypt(ctx, nil, &outLen, base(in), C.size_t(len(in))) == 0 {
+ return nil, fail("EVP_PKEY_decrypt/encrypt")
+ }
+ out := make([]byte, outLen)
+ if crypt(ctx, base(out), &outLen, base(in), C.size_t(len(in))) == 0 {
+ return nil, fail("EVP_PKEY_decrypt/encrypt")
+ }
+ return out[:outLen], nil
+}
+
+func DecryptRSAOAEP(h hash.Hash, priv *PrivateKeyRSA, ciphertext, label []byte) ([]byte, error) {
+ return cryptRSA(priv.withKey, C.GO_RSA_PKCS1_OAEP_PADDING, h, label, 0, 0, decryptInit, decrypt, ciphertext)
+}
+
+func EncryptRSAOAEP(h hash.Hash, pub *PublicKeyRSA, msg, label []byte) ([]byte, error) {
+ return cryptRSA(pub.withKey, C.GO_RSA_PKCS1_OAEP_PADDING, h, label, 0, 0, encryptInit, encrypt, msg)
+}
+
+func DecryptRSAPKCS1(priv *PrivateKeyRSA, ciphertext []byte) ([]byte, error) {
+ return cryptRSA(priv.withKey, C.GO_RSA_PKCS1_PADDING, nil, nil, 0, 0, decryptInit, decrypt, ciphertext)
+}
+
+func EncryptRSAPKCS1(pub *PublicKeyRSA, msg []byte) ([]byte, error) {
+ return cryptRSA(pub.withKey, C.GO_RSA_PKCS1_PADDING, nil, nil, 0, 0, encryptInit, encrypt, msg)
+}
+
+func DecryptRSANoPadding(priv *PrivateKeyRSA, ciphertext []byte) ([]byte, error) {
+ return cryptRSA(priv.withKey, C.GO_RSA_NO_PADDING, nil, nil, 0, 0, decryptInit, decrypt, ciphertext)
+}
+
+func EncryptRSANoPadding(pub *PublicKeyRSA, msg []byte) ([]byte, error) {
+ return cryptRSA(pub.withKey, C.GO_RSA_NO_PADDING, nil, nil, 0, 0, encryptInit, encrypt, msg)
+}
+
+// These dumb wrappers work around the fact that cgo functions cannot be used as values directly.
+
+func decryptInit(ctx *C.GO_EVP_PKEY_CTX) C.int {
+ return C._goboringcrypto_EVP_PKEY_decrypt_init(ctx)
+}
+
+func decrypt(ctx *C.GO_EVP_PKEY_CTX, out *C.uint8_t, outLen *C.size_t, in *C.uint8_t, inLen C.size_t) C.int {
+ return C._goboringcrypto_EVP_PKEY_decrypt(ctx, out, outLen, in, inLen)
+}
+
+func encryptInit(ctx *C.GO_EVP_PKEY_CTX) C.int {
+ return C._goboringcrypto_EVP_PKEY_encrypt_init(ctx)
+}
+
+func encrypt(ctx *C.GO_EVP_PKEY_CTX, out *C.uint8_t, outLen *C.size_t, in *C.uint8_t, inLen C.size_t) C.int {
+ return C._goboringcrypto_EVP_PKEY_encrypt(ctx, out, outLen, in, inLen)
+}
+
+func SignRSAPSS(priv *PrivateKeyRSA, h crypto.Hash, hashed []byte, saltLen int) ([]byte, error) {
+ md := cryptoHashToMD(h)
+ if md == nil {
+ return nil, errors.New("crypto/rsa: unsupported hash function")
+ }
+ if saltLen == 0 {
+ saltLen = -1
+ }
+ var out []byte
+ var outLen C.size_t
+ if priv.withKey(func(key *C.GO_RSA) C.int {
+ out = make([]byte, C._goboringcrypto_RSA_size(key))
+ return C._goboringcrypto_RSA_sign_pss_mgf1(key, &outLen, base(out), C.size_t(len(out)),
+ base(hashed), C.size_t(len(hashed)), md, nil, C.int(saltLen))
+ }) == 0 {
+ return nil, fail("RSA_sign_pss_mgf1")
+ }
+
+ return out[:outLen], nil
+}
+
+func VerifyRSAPSS(pub *PublicKeyRSA, h crypto.Hash, hashed, sig []byte, saltLen int) error {
+ md := cryptoHashToMD(h)
+ if md == nil {
+ return errors.New("crypto/rsa: unsupported hash function")
+ }
+ if saltLen == 0 {
+ saltLen = -2 // auto-recover
+ }
+ if pub.withKey(func(key *C.GO_RSA) C.int {
+ return C._goboringcrypto_RSA_verify_pss_mgf1(key, base(hashed), C.size_t(len(hashed)),
+ md, nil, C.int(saltLen), base(sig), C.size_t(len(sig)))
+ }) == 0 {
+ return fail("RSA_verify_pss_mgf1")
+ }
+ return nil
+}
+
+func SignRSAPKCS1v15(priv *PrivateKeyRSA, h crypto.Hash, hashed []byte) ([]byte, error) {
+ if h == 0 {
+ // No hashing.
+ var out []byte
+ var outLen C.size_t
+ if priv.withKey(func(key *C.GO_RSA) C.int {
+ out = make([]byte, C._goboringcrypto_RSA_size(key))
+ return C._goboringcrypto_RSA_sign_raw(key, &outLen, base(out), C.size_t(len(out)),
+ base(hashed), C.size_t(len(hashed)), C.GO_RSA_PKCS1_PADDING)
+ }) == 0 {
+ return nil, fail("RSA_sign_raw")
+ }
+ return out[:outLen], nil
+ }
+
+ md := cryptoHashToMD(h)
+ if md == nil {
+ return nil, errors.New("crypto/rsa: unsupported hash function: " + strconv.Itoa(int(h)))
+ }
+ nid := C._goboringcrypto_EVP_MD_type(md)
+ var out []byte
+ var outLen C.uint
+ if priv.withKey(func(key *C.GO_RSA) C.int {
+ out = make([]byte, C._goboringcrypto_RSA_size(key))
+ return C._goboringcrypto_RSA_sign(nid, base(hashed), C.uint(len(hashed)),
+ base(out), &outLen, key)
+ }) == 0 {
+ return nil, fail("RSA_sign")
+ }
+ return out[:outLen], nil
+}
+
+func VerifyRSAPKCS1v15(pub *PublicKeyRSA, h crypto.Hash, hashed, sig []byte) error {
+ if h == 0 {
+ var out []byte
+ var outLen C.size_t
+ if pub.withKey(func(key *C.GO_RSA) C.int {
+ out = make([]byte, C._goboringcrypto_RSA_size(key))
+ return C._goboringcrypto_RSA_verify_raw(key, &outLen, base(out),
+ C.size_t(len(out)), base(sig), C.size_t(len(sig)), C.GO_RSA_PKCS1_PADDING)
+ }) == 0 {
+ return fail("RSA_verify")
+ }
+ if subtle.ConstantTimeCompare(hashed, out[:outLen]) != 1 {
+ return fail("RSA_verify")
+ }
+ return nil
+ }
+ md := cryptoHashToMD(h)
+ if md == nil {
+ return errors.New("crypto/rsa: unsupported hash function")
+ }
+ nid := C._goboringcrypto_EVP_MD_type(md)
+ if pub.withKey(func(key *C.GO_RSA) C.int {
+ return C._goboringcrypto_RSA_verify(nid, base(hashed), C.size_t(len(hashed)),
+ base(sig), C.size_t(len(sig)), key)
+ }) == 0 {
+ return fail("RSA_verify")
+ }
+ return nil
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,amd64
+// +build !android
+// +build !cmd_go_bootstrap
+// +build !msan
+
+package boring
+
+// #include "goboringcrypto.h"
+import "C"
+import (
+ "errors"
+ "hash"
+ "unsafe"
+)
+
+// NewSHA1 returns a new SHA1 hash.
+func NewSHA1() hash.Hash {
+ h := new(sha1Hash)
+ h.Reset()
+ return h
+}
+
+type sha1Hash struct {
+ ctx C.GO_SHA_CTX
+ out [20]byte
+}
+
+type sha1Ctx struct {
+ h [5]uint32
+ nl, nh uint32
+ x [64]byte
+ nx uint32
+}
+
+func (h *sha1Hash) Reset() { C._goboringcrypto_SHA1_Init(&h.ctx) }
+func (h *sha1Hash) Size() int { return 20 }
+func (h *sha1Hash) BlockSize() int { return 64 }
+func (h *sha1Hash) Sum(in []byte) []byte { return append(in, h.sum()...) }
+
+func (h *sha1Hash) Write(p []byte) (int, error) {
+ if len(p) > 0 && C._goboringcrypto_SHA1_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 {
+ panic("boringcrypto: SHA1_Update failed")
+ }
+ return len(p), nil
+}
+
+func (h0 *sha1Hash) sum() []byte {
+ h := *h0 // make copy so future Write+Sum is valid
+ if C._goboringcrypto_SHA1_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 {
+ panic("boringcrypto: SHA1_Final failed")
+ }
+ return h.out[:]
+}
+
+const (
+ sha1Magic = "sha\x01"
+ sha1MarshaledSize = len(sha1Magic) + 5*4 + 64 + 8
+)
+
+func (h *sha1Hash) MarshalBinary() ([]byte, error) {
+ d := (*sha1Ctx)(unsafe.Pointer(&h.ctx))
+ b := make([]byte, 0, sha1MarshaledSize)
+ b = append(b, sha1Magic...)
+ b = appendUint32(b, d.h[0])
+ b = appendUint32(b, d.h[1])
+ b = appendUint32(b, d.h[2])
+ b = appendUint32(b, d.h[3])
+ b = appendUint32(b, d.h[4])
+ b = append(b, d.x[:d.nx]...)
+ b = b[:len(b)+len(d.x)-int(d.nx)] // already zero
+ b = appendUint64(b, uint64(d.nl)>>3|uint64(d.nh)<<29)
+ return b, nil
+}
+
+func (h *sha1Hash) UnmarshalBinary(b []byte) error {
+ if len(b) < len(sha1Magic) || string(b[:len(sha1Magic)]) != sha1Magic {
+ return errors.New("crypto/sha1: invalid hash state identifier")
+ }
+ if len(b) != sha1MarshaledSize {
+ return errors.New("crypto/sha1: invalid hash state size")
+ }
+ d := (*sha1Ctx)(unsafe.Pointer(&h.ctx))
+ b = b[len(sha1Magic):]
+ b, d.h[0] = consumeUint32(b)
+ b, d.h[1] = consumeUint32(b)
+ b, d.h[2] = consumeUint32(b)
+ b, d.h[3] = consumeUint32(b)
+ b, d.h[4] = consumeUint32(b)
+ b = b[copy(d.x[:], b):]
+ b, n := consumeUint64(b)
+ d.nl = uint32(n << 3)
+ d.nh = uint32(n >> 29)
+ d.nx = uint32(n) % 64
+ return nil
+}
+
+// NewSHA224 returns a new SHA224 hash.
+func NewSHA224() hash.Hash {
+ h := new(sha224Hash)
+ h.Reset()
+ return h
+}
+
+type sha224Hash struct {
+ ctx C.GO_SHA256_CTX
+ out [224 / 8]byte
+}
+
+func (h *sha224Hash) Reset() { C._goboringcrypto_SHA224_Init(&h.ctx) }
+func (h *sha224Hash) Size() int { return 224 / 8 }
+func (h *sha224Hash) BlockSize() int { return 64 }
+func (h *sha224Hash) Sum(in []byte) []byte { return append(in, h.sum()...) }
+
+func (h *sha224Hash) Write(p []byte) (int, error) {
+ if len(p) > 0 && C._goboringcrypto_SHA224_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 {
+ panic("boringcrypto: SHA224_Update failed")
+ }
+ return len(p), nil
+}
+
+func (h0 *sha224Hash) sum() []byte {
+ h := *h0 // make copy so future Write+Sum is valid
+ if C._goboringcrypto_SHA224_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 {
+ panic("boringcrypto: SHA224_Final failed")
+ }
+ return h.out[:]
+}
+
+// NewSHA256 returns a new SHA256 hash.
+func NewSHA256() hash.Hash {
+ h := new(sha256Hash)
+ h.Reset()
+ return h
+}
+
+type sha256Hash struct {
+ ctx C.GO_SHA256_CTX
+ out [256 / 8]byte
+}
+
+func (h *sha256Hash) Reset() { C._goboringcrypto_SHA256_Init(&h.ctx) }
+func (h *sha256Hash) Size() int { return 256 / 8 }
+func (h *sha256Hash) BlockSize() int { return 64 }
+func (h *sha256Hash) Sum(in []byte) []byte { return append(in, h.sum()...) }
+
+func (h *sha256Hash) Write(p []byte) (int, error) {
+ if len(p) > 0 && C._goboringcrypto_SHA256_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 {
+ panic("boringcrypto: SHA256_Update failed")
+ }
+ return len(p), nil
+}
+
+func (h0 *sha256Hash) sum() []byte {
+ h := *h0 // make copy so future Write+Sum is valid
+ if C._goboringcrypto_SHA256_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 {
+ panic("boringcrypto: SHA256_Final failed")
+ }
+ return h.out[:]
+}
+
+const (
+ magic224 = "sha\x02"
+ magic256 = "sha\x03"
+ marshaledSize256 = len(magic256) + 8*4 + 64 + 8
+)
+
+type sha256Ctx struct {
+ h [8]uint32
+ nl, nh uint32
+ x [64]byte
+ nx uint32
+}
+
+func (h *sha224Hash) MarshalBinary() ([]byte, error) {
+ d := (*sha256Ctx)(unsafe.Pointer(&h.ctx))
+ b := make([]byte, 0, marshaledSize256)
+ b = append(b, magic224...)
+ b = appendUint32(b, d.h[0])
+ b = appendUint32(b, d.h[1])
+ b = appendUint32(b, d.h[2])
+ b = appendUint32(b, d.h[3])
+ b = appendUint32(b, d.h[4])
+ b = appendUint32(b, d.h[5])
+ b = appendUint32(b, d.h[6])
+ b = appendUint32(b, d.h[7])
+ b = append(b, d.x[:d.nx]...)
+ b = b[:len(b)+len(d.x)-int(d.nx)] // already zero
+ b = appendUint64(b, uint64(d.nl)>>3|uint64(d.nh)<<29)
+ return b, nil
+}
+
+func (h *sha256Hash) MarshalBinary() ([]byte, error) {
+ d := (*sha256Ctx)(unsafe.Pointer(&h.ctx))
+ b := make([]byte, 0, marshaledSize256)
+ b = append(b, magic256...)
+ b = appendUint32(b, d.h[0])
+ b = appendUint32(b, d.h[1])
+ b = appendUint32(b, d.h[2])
+ b = appendUint32(b, d.h[3])
+ b = appendUint32(b, d.h[4])
+ b = appendUint32(b, d.h[5])
+ b = appendUint32(b, d.h[6])
+ b = appendUint32(b, d.h[7])
+ b = append(b, d.x[:d.nx]...)
+ b = b[:len(b)+len(d.x)-int(d.nx)] // already zero
+ b = appendUint64(b, uint64(d.nl)>>3|uint64(d.nh)<<29)
+ return b, nil
+}
+
+func (h *sha224Hash) UnmarshalBinary(b []byte) error {
+ if len(b) < len(magic224) || string(b[:len(magic224)]) != magic224 {
+ return errors.New("crypto/sha256: invalid hash state identifier")
+ }
+ if len(b) != marshaledSize256 {
+ return errors.New("crypto/sha256: invalid hash state size")
+ }
+ d := (*sha256Ctx)(unsafe.Pointer(&h.ctx))
+ b = b[len(magic224):]
+ b, d.h[0] = consumeUint32(b)
+ b, d.h[1] = consumeUint32(b)
+ b, d.h[2] = consumeUint32(b)
+ b, d.h[3] = consumeUint32(b)
+ b, d.h[4] = consumeUint32(b)
+ b, d.h[5] = consumeUint32(b)
+ b, d.h[6] = consumeUint32(b)
+ b, d.h[7] = consumeUint32(b)
+ b = b[copy(d.x[:], b):]
+ b, n := consumeUint64(b)
+ d.nl = uint32(n << 3)
+ d.nh = uint32(n >> 29)
+ d.nx = uint32(n) % 64
+ return nil
+}
+
+func (h *sha256Hash) UnmarshalBinary(b []byte) error {
+ if len(b) < len(magic256) || string(b[:len(magic256)]) != magic256 {
+ return errors.New("crypto/sha256: invalid hash state identifier")
+ }
+ if len(b) != marshaledSize256 {
+ return errors.New("crypto/sha256: invalid hash state size")
+ }
+ d := (*sha256Ctx)(unsafe.Pointer(&h.ctx))
+ b = b[len(magic256):]
+ b, d.h[0] = consumeUint32(b)
+ b, d.h[1] = consumeUint32(b)
+ b, d.h[2] = consumeUint32(b)
+ b, d.h[3] = consumeUint32(b)
+ b, d.h[4] = consumeUint32(b)
+ b, d.h[5] = consumeUint32(b)
+ b, d.h[6] = consumeUint32(b)
+ b, d.h[7] = consumeUint32(b)
+ b = b[copy(d.x[:], b):]
+ b, n := consumeUint64(b)
+ d.nl = uint32(n << 3)
+ d.nh = uint32(n >> 29)
+ d.nx = uint32(n) % 64
+ return nil
+}
+
+// NewSHA384 returns a new SHA384 hash.
+func NewSHA384() hash.Hash {
+ h := new(sha384Hash)
+ h.Reset()
+ return h
+}
+
+type sha384Hash struct {
+ ctx C.GO_SHA512_CTX
+ out [384 / 8]byte
+}
+
+func (h *sha384Hash) Reset() { C._goboringcrypto_SHA384_Init(&h.ctx) }
+func (h *sha384Hash) Size() int { return 384 / 8 }
+func (h *sha384Hash) BlockSize() int { return 128 }
+func (h *sha384Hash) Sum(in []byte) []byte { return append(in, h.sum()...) }
+
+func (h *sha384Hash) Write(p []byte) (int, error) {
+ if len(p) > 0 && C._goboringcrypto_SHA384_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 {
+ panic("boringcrypto: SHA384_Update failed")
+ }
+ return len(p), nil
+}
+
+func (h0 *sha384Hash) sum() []byte {
+ h := *h0 // make copy so future Write+Sum is valid
+ if C._goboringcrypto_SHA384_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 {
+ panic("boringcrypto: SHA384_Final failed")
+ }
+ return h.out[:]
+}
+
+// NewSHA512 returns a new SHA512 hash.
+func NewSHA512() hash.Hash {
+ h := new(sha512Hash)
+ h.Reset()
+ return h
+}
+
+type sha512Hash struct {
+ ctx C.GO_SHA512_CTX
+ out [512 / 8]byte
+}
+
+func (h *sha512Hash) Reset() { C._goboringcrypto_SHA512_Init(&h.ctx) }
+func (h *sha512Hash) Size() int { return 512 / 8 }
+func (h *sha512Hash) BlockSize() int { return 128 }
+func (h *sha512Hash) Sum(in []byte) []byte { return append(in, h.sum()...) }
+
+func (h *sha512Hash) Write(p []byte) (int, error) {
+ if len(p) > 0 && C._goboringcrypto_SHA512_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 {
+ panic("boringcrypto: SHA512_Update failed")
+ }
+ return len(p), nil
+}
+
+func (h0 *sha512Hash) sum() []byte {
+ h := *h0 // make copy so future Write+Sum is valid
+ if C._goboringcrypto_SHA512_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 {
+ panic("boringcrypto: SHA512_Final failed")
+ }
+ return h.out[:]
+}
+
+type sha512Ctx struct {
+ h [8]uint64
+ nl, nh uint64
+ x [128]byte
+ nx uint32
+}
+
+const (
+ magic384 = "sha\x04"
+ magic512_224 = "sha\x05"
+ magic512_256 = "sha\x06"
+ magic512 = "sha\x07"
+ marshaledSize512 = len(magic512) + 8*8 + 128 + 8
+)
+
+var zero [128]byte
+
+func (h *sha384Hash) MarshalBinary() ([]byte, error) {
+ d := (*sha512Ctx)(unsafe.Pointer(&h.ctx))
+ b := make([]byte, 0, marshaledSize512)
+ b = append(b, magic384...)
+ b = appendUint64(b, d.h[0])
+ b = appendUint64(b, d.h[1])
+ b = appendUint64(b, d.h[2])
+ b = appendUint64(b, d.h[3])
+ b = appendUint64(b, d.h[4])
+ b = appendUint64(b, d.h[5])
+ b = appendUint64(b, d.h[6])
+ b = appendUint64(b, d.h[7])
+ b = append(b, d.x[:d.nx]...)
+ b = b[:len(b)+len(d.x)-int(d.nx)] // already zero
+ b = appendUint64(b, d.nl>>3|d.nh<<61)
+ return b, nil
+}
+
+func (h *sha512Hash) MarshalBinary() ([]byte, error) {
+ d := (*sha512Ctx)(unsafe.Pointer(&h.ctx))
+ b := make([]byte, 0, marshaledSize512)
+ b = append(b, magic512...)
+ b = appendUint64(b, d.h[0])
+ b = appendUint64(b, d.h[1])
+ b = appendUint64(b, d.h[2])
+ b = appendUint64(b, d.h[3])
+ b = appendUint64(b, d.h[4])
+ b = appendUint64(b, d.h[5])
+ b = appendUint64(b, d.h[6])
+ b = appendUint64(b, d.h[7])
+ b = append(b, d.x[:d.nx]...)
+ b = b[:len(b)+len(d.x)-int(d.nx)] // already zero
+ b = appendUint64(b, d.nl>>3|d.nh<<61)
+ return b, nil
+}
+
+func (h *sha384Hash) UnmarshalBinary(b []byte) error {
+ if len(b) < len(magic512) {
+ return errors.New("crypto/sha512: invalid hash state identifier")
+ }
+ if string(b[:len(magic384)]) != magic384 {
+ return errors.New("crypto/sha512: invalid hash state identifier")
+ }
+ if len(b) != marshaledSize512 {
+ return errors.New("crypto/sha512: invalid hash state size")
+ }
+ d := (*sha512Ctx)(unsafe.Pointer(&h.ctx))
+ b = b[len(magic512):]
+ b, d.h[0] = consumeUint64(b)
+ b, d.h[1] = consumeUint64(b)
+ b, d.h[2] = consumeUint64(b)
+ b, d.h[3] = consumeUint64(b)
+ b, d.h[4] = consumeUint64(b)
+ b, d.h[5] = consumeUint64(b)
+ b, d.h[6] = consumeUint64(b)
+ b, d.h[7] = consumeUint64(b)
+ b = b[copy(d.x[:], b):]
+ b, n := consumeUint64(b)
+ d.nl = n << 3
+ d.nh = n >> 61
+ d.nx = uint32(n) % 128
+ return nil
+}
+
+func (h *sha512Hash) UnmarshalBinary(b []byte) error {
+ if len(b) < len(magic512) {
+ return errors.New("crypto/sha512: invalid hash state identifier")
+ }
+ if string(b[:len(magic512)]) != magic512 {
+ return errors.New("crypto/sha512: invalid hash state identifier")
+ }
+ if len(b) != marshaledSize512 {
+ return errors.New("crypto/sha512: invalid hash state size")
+ }
+ d := (*sha512Ctx)(unsafe.Pointer(&h.ctx))
+ b = b[len(magic512):]
+ b, d.h[0] = consumeUint64(b)
+ b, d.h[1] = consumeUint64(b)
+ b, d.h[2] = consumeUint64(b)
+ b, d.h[3] = consumeUint64(b)
+ b, d.h[4] = consumeUint64(b)
+ b, d.h[5] = consumeUint64(b)
+ b, d.h[6] = consumeUint64(b)
+ b, d.h[7] = consumeUint64(b)
+ b = b[copy(d.x[:], b):]
+ b, n := consumeUint64(b)
+ d.nl = n << 3
+ d.nh = n >> 61
+ d.nx = uint32(n) % 128
+ return nil
+}
+
+func appendUint64(b []byte, x uint64) []byte {
+ var a [8]byte
+ putUint64(a[:], x)
+ return append(b, a[:]...)
+}
+
+func appendUint32(b []byte, x uint32) []byte {
+ var a [4]byte
+ putUint32(a[:], x)
+ return append(b, a[:]...)
+}
+
+func consumeUint64(b []byte) ([]byte, uint64) {
+ _ = b[7]
+ x := uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
+ uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
+ return b[8:], x
+}
+
+func consumeUint32(b []byte) ([]byte, uint32) {
+ _ = b[3]
+ x := uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
+ return b[4:], x
+}
+
+func putUint64(x []byte, s uint64) {
+ _ = x[7]
+ x[0] = byte(s >> 56)
+ x[1] = byte(s >> 48)
+ x[2] = byte(s >> 40)
+ x[3] = byte(s >> 32)
+ x[4] = byte(s >> 24)
+ x[5] = byte(s >> 16)
+ x[6] = byte(s >> 8)
+ x[7] = byte(s)
+}
+
+func putUint32(x []byte, s uint32) {
+ _ = x[3]
+ x[0] = byte(s >> 24)
+ x[1] = byte(s >> 16)
+ x[2] = byte(s >> 8)
+ x[3] = byte(s)
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package sig holds “code signatures” that can be called
+// and will result in certain code sequences being linked into
+// the final binary. The functions themselves are no-ops.
+package sig
+
+// BoringCrypto indicates that the BoringCrypto module is present.
+func BoringCrypto()
+
+// FIPSOnly indicates that package crypto/tls/fipsonly is present.
+func FIPSOnly()
+
+// StandardCrypto indicates that standard Go crypto is present.
+func StandardCrypto()
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+
+// These functions are no-ops, but you can search for their implementations
+// to find out whether they are linked into a particular binary.
+//
+// Each function consists of a two-byte jump over the next 29-bytes,
+// then a 5-byte indicator sequence unlikely to occur in real x86 instructions,
+// then a randomly-chosen 24-byte sequence, and finally a return instruction
+// (the target of the jump).
+//
+// These sequences are known to rsc.io/goversion.
+
+#define START \
+ BYTE $0xEB; BYTE $0x1D; BYTE $0xF4; BYTE $0x48; BYTE $0xF4; BYTE $0x4B; BYTE $0xF4
+
+#define END \
+ BYTE $0xC3
+
+// BoringCrypto indicates that BoringCrypto (in particular, its func init) is present.
+TEXT ·BoringCrypto(SB),NOSPLIT,$0
+ START
+ BYTE $0xB3; BYTE $0x32; BYTE $0xF5; BYTE $0x28;
+ BYTE $0x13; BYTE $0xA3; BYTE $0xB4; BYTE $0x50;
+ BYTE $0xD4; BYTE $0x41; BYTE $0xCC; BYTE $0x24;
+ BYTE $0x85; BYTE $0xF0; BYTE $0x01; BYTE $0x45;
+ BYTE $0x4E; BYTE $0x92; BYTE $0x10; BYTE $0x1B;
+ BYTE $0x1D; BYTE $0x2F; BYTE $0x19; BYTE $0x50;
+ END
+
+// StandardCrypto indicates that standard Go crypto is present.
+TEXT ·StandardCrypto(SB),NOSPLIT,$0
+ START
+ BYTE $0xba; BYTE $0xee; BYTE $0x4d; BYTE $0xfa;
+ BYTE $0x98; BYTE $0x51; BYTE $0xca; BYTE $0x56;
+ BYTE $0xa9; BYTE $0x11; BYTE $0x45; BYTE $0xe8;
+ BYTE $0x3e; BYTE $0x99; BYTE $0xc5; BYTE $0x9c;
+ BYTE $0xf9; BYTE $0x11; BYTE $0xcb; BYTE $0x8e;
+ BYTE $0x80; BYTE $0xda; BYTE $0xf1; BYTE $0x2f;
+ END
+
+// FIPSOnly indicates that crypto/tls/fipsonly is present.
+TEXT ·FIPSOnly(SB),NOSPLIT,$0
+ START
+ BYTE $0x36; BYTE $0x3C; BYTE $0xB9; BYTE $0xCE;
+ BYTE $0x9D; BYTE $0x68; BYTE $0x04; BYTE $0x7D;
+ BYTE $0x31; BYTE $0xF2; BYTE $0x8D; BYTE $0x32;
+ BYTE $0x5D; BYTE $0x5C; BYTE $0xA5; BYTE $0x87;
+ BYTE $0x3F; BYTE $0x5D; BYTE $0x80; BYTE $0xCA;
+ BYTE $0xF6; BYTE $0xD6; BYTE $0x15; BYTE $0x1B;
+ END
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// These functions are no-ops.
+// On amd64 they have recognizable implementations, so that you can
+// search a particular binary to see if they are present.
+// On other platforms (those using this source file), they don't.
+
+// +build !amd64
+
+TEXT ·BoringCrypto(SB),$0
+ RET
+
+TEXT ·FIPSOnly(SB),$0
+ RET
+
+TEXT ·StandardCrypto(SB),$0
+ RET
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-package crypto
+package crypto_test
import (
"crypto/aes"
"time"
)
+import "crypto/internal/boring"
+
const urandomDevice = "/dev/urandom"
// Easy implementation: read from /dev/urandom.
// This is sufficient on Linux, OS X, and FreeBSD.
func init() {
+ if boring.Enabled {
+ Reader = boring.RandReader
+ return
+ }
if runtime.GOOS == "plan9" {
Reader = newReader(nil)
} else {
}
func (r *devReader) Read(b []byte) (n int, err error) {
+ boring.Unreachable()
if atomic.CompareAndSwapInt32(&r.used, 0, 1) {
// First use of randomness. Start timer to warn about
// being blocked on entropy not being available.
}
func (r *reader) Read(b []byte) (n int, err error) {
+ boring.Unreachable()
r.mu.Lock()
defer r.mu.Unlock()
n = len(b)
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package rsa
+
+import (
+ "crypto/internal/boring"
+ "math/big"
+ "sync/atomic"
+ "unsafe"
+)
+
+// Cached conversions from Go PublicKey/PrivateKey to BoringCrypto.
+//
+// A new 'boring atomic.Value' field in both PublicKey and PrivateKey
+// serves as a cache for the most recent conversion. The cache is an
+// atomic.Value because code might reasonably set up a key and then
+// (thinking it immutable) use it from multiple goroutines simultaneously.
+// The first operation initializes the cache; if there are multiple simultaneous
+// first operations, they will do redundant work but not step on each other.
+//
+// We could just assume that once used in a sign/verify/encrypt/decrypt operation,
+// a particular key is never again modified, but that has not been a
+// stated assumption before. Just in case there is any existing code that
+// does modify the key between operations, we save the original values
+// alongside the cached BoringCrypto key and check that the real key
+// still matches before using the cached key. The theory is that the real
+// operations are significantly more expensive than the comparison.
+
+type boringPub struct {
+ key *boring.PublicKeyRSA
+ orig PublicKey
+}
+
+func boringPublicKey(pub *PublicKey) (*boring.PublicKeyRSA, error) {
+ b := (*boringPub)(atomic.LoadPointer(&pub.boring))
+ if b != nil && publicKeyEqual(&b.orig, pub) {
+ return b.key, nil
+ }
+
+ b = new(boringPub)
+ b.orig = copyPublicKey(pub)
+ key, err := boring.NewPublicKeyRSA(b.orig.N, big.NewInt(int64(b.orig.E)))
+ if err != nil {
+ return nil, err
+ }
+ b.key = key
+ atomic.StorePointer(&pub.boring, unsafe.Pointer(b))
+ return key, nil
+}
+
+type boringPriv struct {
+ key *boring.PrivateKeyRSA
+ orig PrivateKey
+}
+
+func boringPrivateKey(priv *PrivateKey) (*boring.PrivateKeyRSA, error) {
+ b := (*boringPriv)(atomic.LoadPointer(&priv.boring))
+ if b != nil && privateKeyEqual(&b.orig, priv) {
+ return b.key, nil
+ }
+
+ b = new(boringPriv)
+ b.orig = copyPrivateKey(priv)
+
+ var N, E, D, P, Q, Dp, Dq, Qinv *big.Int
+ N = b.orig.N
+ E = big.NewInt(int64(b.orig.E))
+ D = b.orig.D
+ if len(b.orig.Primes) == 2 {
+ P = b.orig.Primes[0]
+ Q = b.orig.Primes[1]
+ Dp = b.orig.Precomputed.Dp
+ Dq = b.orig.Precomputed.Dq
+ Qinv = b.orig.Precomputed.Qinv
+ }
+ key, err := boring.NewPrivateKeyRSA(N, E, D, P, Q, Dp, Dq, Qinv)
+ if err != nil {
+ return nil, err
+ }
+ b.key = key
+ atomic.StorePointer(&priv.boring, unsafe.Pointer(b))
+ return key, nil
+}
+
+func publicKeyEqual(k1, k2 *PublicKey) bool {
+ return k1.N != nil &&
+ k1.N.Cmp(k2.N) == 0 &&
+ k1.E == k2.E
+}
+
+func copyPublicKey(k *PublicKey) PublicKey {
+ return PublicKey{
+ N: new(big.Int).Set(k.N),
+ E: k.E,
+ }
+}
+
+func privateKeyEqual(k1, k2 *PrivateKey) bool {
+ return publicKeyEqual(&k1.PublicKey, &k2.PublicKey) &&
+ k1.D.Cmp(k2.D) == 0
+}
+
+func copyPrivateKey(k *PrivateKey) PrivateKey {
+ dst := PrivateKey{
+ PublicKey: copyPublicKey(&k.PublicKey),
+ D: new(big.Int).Set(k.D),
+ }
+ dst.Primes = make([]*big.Int, len(k.Primes))
+ for i, p := range k.Primes {
+ dst.Primes[i] = new(big.Int).Set(p)
+ }
+ if x := k.Precomputed.Dp; x != nil {
+ dst.Precomputed.Dp = new(big.Int).Set(x)
+ }
+ if x := k.Precomputed.Dq; x != nil {
+ dst.Precomputed.Dq = new(big.Int).Set(x)
+ }
+ if x := k.Precomputed.Qinv; x != nil {
+ dst.Precomputed.Qinv = new(big.Int).Set(x)
+ }
+ return dst
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Note: Can run these tests against the non-BoringCrypto
+// version of the code by using "CGO_ENABLED=0 go test".
+
+package rsa
+
+import (
+ "crypto"
+ "crypto/rand"
+ "encoding/asn1"
+ "reflect"
+ "runtime"
+ "runtime/debug"
+ "sync"
+ "sync/atomic"
+ "testing"
+ "unsafe"
+)
+
+func TestBoringASN1Marshal(t *testing.T) {
+ k, err := GenerateKey(rand.Reader, 128)
+ if err != nil {
+ t.Fatal(err)
+ }
+ // This used to fail, because of the unexported 'boring' field.
+ // Now the compiler hides it [sic].
+ _, err = asn1.Marshal(k.PublicKey)
+ if err != nil {
+ t.Fatal(err)
+ }
+}
+
+func TestBoringDeepEqual(t *testing.T) {
+ k, err := GenerateKey(rand.Reader, 128)
+ if err != nil {
+ t.Fatal(err)
+ }
+ k.boring = nil // probably nil already but just in case
+ k2 := *k
+ k2.boring = unsafe.Pointer(k) // anything not nil, for this test
+ if !reflect.DeepEqual(k, &k2) {
+ // compiler should be hiding the boring field from reflection
+ t.Fatalf("DeepEqual compared boring fields")
+ }
+}
+
+func TestBoringVerify(t *testing.T) {
+ // Check that signatures that lack leading zeroes don't verify.
+ key := &PublicKey{
+ N: bigFromHex("c4fdf7b40a5477f206e6ee278eaef888ca73bf9128a9eef9f2f1ddb8b7b71a4c07cfa241f028a04edb405e4d916c61d6beabc333813dc7b484d2b3c52ee233c6a79b1eea4e9cc51596ba9cd5ac5aeb9df62d86ea051055b79d03f8a4fa9f38386f5bd17529138f3325d46801514ea9047977e0829ed728e68636802796801be1"),
+ E: 65537,
+ }
+
+ hash := fromHex("019c5571724fb5d0e47a4260c940e9803ba05a44")
+ paddedHash := fromHex("3021300906052b0e03021a05000414019c5571724fb5d0e47a4260c940e9803ba05a44")
+
+ // signature is one byte shorter than key.N.
+ sig := fromHex("5edfbeb6a73e7225ad3cc52724e2872e04260d7daf0d693c170d8c4b243b8767bc7785763533febc62ec2600c30603c433c095453ede59ff2fcabeb84ce32e0ed9d5cf15ffcbc816202b64370d4d77c1e9077d74e94a16fb4fa2e5bec23a56d7a73cf275f91691ae1801a976fcde09e981a2f6327ac27ea1fecf3185df0d56")
+
+ err := VerifyPKCS1v15(key, 0, paddedHash, sig)
+ if err == nil {
+ t.Errorf("raw: expected verification error")
+ }
+
+ err = VerifyPKCS1v15(key, crypto.SHA1, hash, sig)
+ if err == nil {
+ t.Errorf("sha1: expected verification error")
+ }
+}
+
+func TestBoringGenerateKey(t *testing.T) {
+ k, err := GenerateKey(rand.Reader, 2048) // 2048 is smallest size BoringCrypto might kick in for
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Non-Boring GenerateKey always sets CRTValues to a non-nil (possibly empty) slice.
+ if k.Precomputed.CRTValues == nil {
+ t.Fatalf("GenerateKey: Precomputed.CRTValues = nil")
+ }
+}
+
+func TestBoringFinalizers(t *testing.T) {
+ if runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+ // Times out on nacl and js/wasm (without BoringCrypto)
+ // but not clear why - probably consuming rand.Reader too quickly
+ // and being throttled. Also doesn't really matter.
+ t.Skipf("skipping on %s/%s", runtime.GOOS, runtime.GOARCH)
+ }
+
+ k, err := GenerateKey(rand.Reader, 2048)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Run test with GOGC=10, to make bug more likely.
+ // Without the KeepAlives, the loop usually dies after
+ // about 30 iterations.
+ defer debug.SetGCPercent(debug.SetGCPercent(10))
+ for n := 0; n < 200; n++ {
+ // Clear the underlying BoringCrypto object.
+ atomic.StorePointer(&k.boring, nil)
+
+ // Race to create the underlying BoringCrypto object.
+ // The ones that lose the race are prime candidates for
+ // being GC'ed too early if the finalizers are not being
+ // used correctly.
+ var wg sync.WaitGroup
+ for i := 0; i < 10; i++ {
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ sum := make([]byte, 32)
+ _, err := SignPKCS1v15(rand.Reader, k, crypto.SHA256, sum)
+ if err != nil {
+ panic(err) // usually caused by memory corruption, so hard stop
+ }
+ }()
+ }
+ wg.Wait()
+ }
+}
"crypto/internal/randutil"
)
+import "crypto/internal/boring"
+
// This file implements encryption and decryption using PKCS #1 v1.5 padding.
// PKCS1v15DecrypterOpts is for passing options to PKCS #1 v1.5 decryption using
//
// WARNING: use of this function to encrypt plaintexts other than
// session keys is dangerous. Use RSA OAEP in new protocols.
-func EncryptPKCS1v15(rand io.Reader, pub *PublicKey, msg []byte) ([]byte, error) {
- randutil.MaybeReadByte(rand)
+func EncryptPKCS1v15(random io.Reader, pub *PublicKey, msg []byte) ([]byte, error) {
+ randutil.MaybeReadByte(random)
if err := checkPub(pub); err != nil {
return nil, err
return nil, ErrMessageTooLong
}
+ if boring.Enabled && random == boring.RandReader {
+ bkey, err := boringPublicKey(pub)
+ if err != nil {
+ return nil, err
+ }
+ return boring.EncryptRSAPKCS1(bkey, msg)
+ }
+ boring.UnreachableExceptTests()
+
// EM = 0x00 || 0x02 || PS || 0x00 || M
em := make([]byte, k)
em[1] = 2
ps, mm := em[2:len(em)-len(msg)-1], em[len(em)-len(msg):]
- err := nonZeroRandomBytes(ps, rand)
+ err := nonZeroRandomBytes(ps, random)
if err != nil {
return nil, err
}
em[len(em)-len(msg)-1] = 0
copy(mm, msg)
+ if boring.Enabled {
+ var bkey *boring.PublicKeyRSA
+ bkey, err = boringPublicKey(pub)
+ if err != nil {
+ return nil, err
+ }
+ return boring.EncryptRSANoPadding(bkey, em)
+ }
+
m := new(big.Int).SetBytes(em)
c := encrypt(new(big.Int), pub, m)
-
return c.FillBytes(em), nil
}
if err := checkPub(&priv.PublicKey); err != nil {
return nil, err
}
+
+ if boring.Enabled {
+ bkey, err := boringPrivateKey(priv)
+ if err != nil {
+ return nil, err
+ }
+ out, err := boring.DecryptRSAPKCS1(bkey, ciphertext)
+ if err != nil {
+ return nil, ErrDecryption
+ }
+ return out, nil
+ }
+
valid, out, index, err := decryptPKCS1v15(rand, priv, ciphertext)
if err != nil {
return nil, err
return
}
- c := new(big.Int).SetBytes(ciphertext)
- m, err := decrypt(rand, priv, c)
- if err != nil {
- return
+ if boring.Enabled {
+ var bkey *boring.PrivateKeyRSA
+ bkey, err = boringPrivateKey(priv)
+ if err != nil {
+ return
+ }
+ em, err = boring.DecryptRSANoPadding(bkey, ciphertext)
+ if err != nil {
+ return
+ }
+ } else {
+ c := new(big.Int).SetBytes(ciphertext)
+ var m *big.Int
+ m, err = decrypt(rand, priv, c)
+ if err != nil {
+ return
+ }
+ em = m.FillBytes(make([]byte, k))
}
- em = m.FillBytes(make([]byte, k))
firstByteIsZero := subtle.ConstantTimeByteEq(em[0], 0)
secondByteIsTwo := subtle.ConstantTimeByteEq(em[1], 2)
// messages is small, an attacker may be able to build a map from
// messages to signatures and identify the signed messages. As ever,
// signatures provide authenticity, not confidentiality.
-func SignPKCS1v15(rand io.Reader, priv *PrivateKey, hash crypto.Hash, hashed []byte) ([]byte, error) {
+func SignPKCS1v15(random io.Reader, priv *PrivateKey, hash crypto.Hash, hashed []byte) ([]byte, error) {
hashLen, prefix, err := pkcs1v15HashInfo(hash, len(hashed))
if err != nil {
return nil, err
return nil, ErrMessageTooLong
}
+ if boring.Enabled {
+ bkey, err := boringPrivateKey(priv)
+ if err != nil {
+ return nil, err
+ }
+ return boring.SignRSAPKCS1v15(bkey, hash, hashed)
+ }
+
// EM = 0x00 || 0x01 || PS || 0x00 || T
em := make([]byte, k)
em[1] = 1
copy(em[k-hashLen:k], hashed)
m := new(big.Int).SetBytes(em)
- c, err := decryptAndCheck(rand, priv, m)
+ c, err := decryptAndCheck(random, priv, m)
if err != nil {
return nil, err
}
// returning a nil error. If hash is zero then hashed is used directly. This
// isn't advisable except for interoperability.
func VerifyPKCS1v15(pub *PublicKey, hash crypto.Hash, hashed []byte, sig []byte) error {
+ if boring.Enabled {
+ bkey, err := boringPublicKey(pub)
+ if err != nil {
+ return err
+ }
+ if err := boring.VerifyRSAPKCS1v15(bkey, hash, hashed, sig); err != nil {
+ return ErrVerification
+ }
+ return nil
+ }
+
hashLen, prefix, err := pkcs1v15HashInfo(hash, len(hashed))
if err != nil {
return err
for i, test := range decryptPKCS1v15Tests {
out, err := decryptFunc(decodeBase64(test.in))
if err != nil {
- t.Errorf("#%d error decrypting", i)
+ t.Errorf("#%d error decrypting: %v", i, err)
}
want := []byte(test.out)
if !bytes.Equal(out, want) {
"math/big"
)
+import "crypto/internal/boring"
+
// Per RFC 8017, Section 9.1
//
// EM = MGF1 xor DB || H( 8*0x00 || mHash || salt ) || 0xbc
if err != nil {
return nil, err
}
+
+ if boring.Enabled {
+ bkey, err := boringPrivateKey(priv)
+ if err != nil {
+ return nil, err
+ }
+ // Note: BoringCrypto takes care of the "AndCheck" part of "decryptAndCheck".
+ // (It's not just decrypt.)
+ s, err := boring.DecryptRSANoPadding(bkey, em)
+ if err != nil {
+ return nil, err
+ }
+ return s, nil
+ }
+
m := new(big.Int).SetBytes(em)
c, err := decryptAndCheck(rand, priv, m)
if err != nil {
saltLength = hash.Size()
}
+ if boring.Enabled && rand == boring.RandReader {
+ bkey, err := boringPrivateKey(priv)
+ if err != nil {
+ return nil, err
+ }
+ return boring.SignRSAPSS(bkey, hash, digest, saltLength)
+ }
+
salt := make([]byte, saltLength)
if _, err := io.ReadFull(rand, salt); err != nil {
return nil, err
// argument may be nil, in which case sensible defaults are used. opts.Hash is
// ignored.
func VerifyPSS(pub *PublicKey, hash crypto.Hash, digest []byte, sig []byte, opts *PSSOptions) error {
+ if boring.Enabled {
+ bkey, err := boringPublicKey(pub)
+ if err != nil {
+ return err
+ }
+ if err := boring.VerifyRSAPSS(bkey, hash, digest, sig, opts.saltLength()); err != nil {
+ return ErrVerification
+ }
+ return nil
+ }
if len(sig) != pub.Size() {
return ErrVerification
}
"bytes"
"compress/bzip2"
"crypto"
- _ "crypto/md5"
"crypto/rand"
"crypto/sha1"
"crypto/sha256"
{8, 8, true},
}
- hash := crypto.MD5
+ hash := crypto.SHA1
h := hash.New()
h.Write([]byte("testing"))
hashed := h.Sum(nil)
"crypto/internal/randutil"
)
+import (
+ "crypto/internal/boring"
+ "unsafe"
+)
+
var bigZero = big.NewInt(0)
var bigOne = big.NewInt(1)
type PublicKey struct {
N *big.Int // modulus
E int // public exponent
+
+ boring unsafe.Pointer
}
// Any methods implemented on PublicKey might need to also be implemented on
// Precomputed contains precomputed values that speed up private
// operations, if available.
Precomputed PrecomputedValues
+
+ boring unsafe.Pointer
}
// Public returns the public key corresponding to priv.
func GenerateMultiPrimeKey(random io.Reader, nprimes int, bits int) (*PrivateKey, error) {
randutil.MaybeReadByte(random)
+ if boring.Enabled && random == boring.RandReader && nprimes == 2 && (bits == 2048 || bits == 3072) {
+ N, E, D, P, Q, Dp, Dq, Qinv, err := boring.GenerateKeyRSA(bits)
+ if err != nil {
+ return nil, err
+ }
+ e64 := E.Int64()
+ if !E.IsInt64() || int64(int(e64)) != e64 {
+ return nil, errors.New("crypto/rsa: generated key exponent too large")
+ }
+ key := &PrivateKey{
+ PublicKey: PublicKey{
+ N: N,
+ E: int(e64),
+ },
+ D: D,
+ Primes: []*big.Int{P, Q},
+ Precomputed: PrecomputedValues{
+ Dp: Dp,
+ Dq: Dq,
+ Qinv: Qinv,
+ CRTValues: make([]CRTValue, 0), // non-nil, to match Precompute
+ },
+ }
+ return key, nil
+ }
+
priv := new(PrivateKey)
priv.E = 65537
var ErrMessageTooLong = errors.New("crypto/rsa: message too long for RSA public key size")
func encrypt(c *big.Int, pub *PublicKey, m *big.Int) *big.Int {
+ boring.Unreachable()
e := big.NewInt(int64(pub.E))
c.Exp(m, e, pub.N)
return c
return nil, ErrMessageTooLong
}
+ if boring.Enabled && random == boring.RandReader {
+ bkey, err := boringPublicKey(pub)
+ if err != nil {
+ return nil, err
+ }
+ return boring.EncryptRSAOAEP(hash, bkey, msg, label)
+ }
+ boring.UnreachableExceptTests()
+
hash.Write(label)
lHash := hash.Sum(nil)
hash.Reset()
mgf1XOR(db, hash, seed)
mgf1XOR(seed, hash, db)
+ if boring.Enabled {
+ var bkey *boring.PublicKeyRSA
+ bkey, err = boringPublicKey(pub)
+ if err != nil {
+ return nil, err
+ }
+ return boring.EncryptRSANoPadding(bkey, em)
+ }
+
m := new(big.Int)
m.SetBytes(em)
c := encrypt(new(big.Int), pub, m)
// decrypt performs an RSA decryption, resulting in a plaintext integer. If a
// random source is given, RSA blinding is used.
func decrypt(random io.Reader, priv *PrivateKey, c *big.Int) (m *big.Int, err error) {
+ if len(priv.Primes) <= 2 {
+ boring.Unreachable()
+ }
// TODO(agl): can we get away with reusing blinds?
if c.Cmp(priv.N) > 0 {
err = ErrDecryption
return nil, ErrDecryption
}
+ if boring.Enabled {
+ bkey, err := boringPrivateKey(priv)
+ if err != nil {
+ return nil, err
+ }
+ out, err := boring.DecryptRSAOAEP(hash, bkey, ciphertext, label)
+ if err != nil {
+ return nil, ErrDecryption
+ }
+ return out, nil
+ }
c := new(big.Int).SetBytes(ciphertext)
m, err := decrypt(random, priv, c)
"crypto/rand"
"crypto/sha1"
"crypto/sha256"
+ "fmt"
"math/big"
"testing"
)
+import "crypto/internal/boring"
+
func TestKeyGeneration(t *testing.T) {
- size := 1024
- if testing.Short() {
- size = 128
- }
- priv, err := GenerateKey(rand.Reader, size)
- if err != nil {
- t.Errorf("failed to generate key")
- }
- if bits := priv.N.BitLen(); bits != size {
- t.Errorf("key too short (%d vs %d)", bits, size)
+ for _, size := range []int{128, 1024, 2048, 3072} {
+ priv, err := GenerateKey(rand.Reader, size)
+ if err != nil {
+ t.Errorf("GenerateKey(%d): %v", size, err)
+ }
+ if bits := priv.N.BitLen(); bits != size {
+ t.Errorf("key too short (%d vs %d)", bits, size)
+ }
+ testKeyBasics(t, priv)
+ if testing.Short() {
+ break
+ }
}
- testKeyBasics(t, priv)
}
func Test3PrimeKeyGeneration(t *testing.T) {
t.Errorf("private exponent too large")
}
+ if boring.Enabled {
+ // Cannot call encrypt/decrypt directly. Test via PKCS1v15.
+ msg := []byte("hi!")
+ enc, err := EncryptPKCS1v15(rand.Reader, &priv.PublicKey, msg)
+ if err != nil {
+ t.Errorf("EncryptPKCS1v15: %v", err)
+ return
+ }
+ dec, err := DecryptPKCS1v15(rand.Reader, priv, enc)
+ if err != nil {
+ t.Errorf("DecryptPKCS1v15: %v", err)
+ return
+ }
+ if !bytes.Equal(dec, msg) {
+ t.Errorf("got:%x want:%x (%+v)", dec, msg, priv)
+ }
+ return
+ }
+
pub := &priv.PublicKey
m := big.NewInt(42)
c := encrypt(new(big.Int), pub, m)
}
func BenchmarkRSA2048Decrypt(b *testing.B) {
+ if boring.Enabled {
+ b.Skip("no raw decrypt in BoringCrypto")
+ }
+
b.StopTimer()
c := fromBase10("8472002792838218989464636159316973636630013835787202418124758118372358261975764365740026024610403138425986214991379012696600761514742817632790916315594342398720903716529235119816755589383377471752116975374952783629225022962092351886861518911824745188989071172097120352727368980275252089141512321893536744324822590480751098257559766328893767334861211872318961900897793874075248286439689249972315699410830094164386544311554704755110361048571142336148077772023880664786019636334369759624917224888206329520528064315309519262325023881707530002540634660750469137117568199824615333883758410040459705787022909848740188613313")
}
func Benchmark3PrimeRSA2048Decrypt(b *testing.B) {
+ if boring.Enabled {
+ b.Skip("no raw decrypt in BoringCrypto")
+ }
+
b.StopTimer()
priv := &PrivateKey{
PublicKey: PublicKey{
n := new(big.Int)
for i, test := range testEncryptOAEPData {
n.SetString(test.modulus, 16)
- public := PublicKey{n, test.e}
+ public := PublicKey{N: n, E: test.e}
for j, message := range test.msgs {
randomSource := bytes.NewReader(message.seed)
n.SetString(test.modulus, 16)
d.SetString(test.d, 16)
private := new(PrivateKey)
- private.PublicKey = PublicKey{n, test.e}
+ private.PublicKey = PublicKey{N: n, E: test.e}
private.D = d
for j, message := range test.msgs {
}
}
+func TestEncryptDecryptOAEP(t *testing.T) {
+ sha256 := sha256.New()
+ n := new(big.Int)
+ d := new(big.Int)
+ for i, test := range testEncryptOAEPData {
+ n.SetString(test.modulus, 16)
+ d.SetString(test.d, 16)
+ priv := new(PrivateKey)
+ priv.PublicKey = PublicKey{N: n, E: test.e}
+ priv.D = d
+
+ for j, message := range test.msgs {
+ label := []byte(fmt.Sprintf("hi#%d", j))
+ enc, err := EncryptOAEP(sha256, rand.Reader, &priv.PublicKey, message.in, label)
+ if err != nil {
+ t.Errorf("#%d,%d: EncryptOAEP: %v", i, j, err)
+ continue
+ }
+ dec, err := DecryptOAEP(sha256, rand.Reader, priv, enc, label)
+ if err != nil {
+ t.Errorf("#%d,%d: DecryptOAEP: %v", i, j, err)
+ continue
+ }
+ if !bytes.Equal(dec, message.in) {
+ t.Errorf("#%d,%d: round trip %q -> %q", i, j, message.in, dec)
+ }
+ }
+ }
+}
+
// testEncryptOAEPData contains a subset of the vectors from RSA's "Test vectors for RSA-OAEP".
var testEncryptOAEPData = []testEncryptOAEPStruct{
// Key 1
--- /dev/null
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Extra indirection here so that when building go_bootstrap
+// cmd/internal/boring is not even imported, so that we don't
+// have to maintain changes to cmd/dist's deps graph.
+
+// +build !cmd_go_bootstrap
+
+package sha1
+
+import (
+ "crypto/internal/boring"
+ "hash"
+)
+
+const boringEnabled = boring.Enabled
+
+func boringNewSHA1() hash.Hash { return boring.NewSHA1() }
+
+func boringUnreachable() { boring.Unreachable() }
--- /dev/null
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build cmd_go_bootstrap
+
+package sha1
+
+import (
+ "hash"
+)
+
+const boringEnabled = false
+
+func boringNewSHA1() hash.Hash { panic("boringcrypto: not available") }
+
+func boringUnreachable() {}
// implements encoding.BinaryMarshaler and encoding.BinaryUnmarshaler to
// marshal and unmarshal the internal state of the hash.
func New() hash.Hash {
+ if boringEnabled {
+ return boringNewSHA1()
+ }
d := new(digest)
d.Reset()
return d
func (d *digest) BlockSize() int { return BlockSize }
func (d *digest) Write(p []byte) (nn int, err error) {
+ boringUnreachable()
nn = len(p)
d.len += uint64(nn)
if d.nx > 0 {
}
func (d *digest) Sum(in []byte) []byte {
+ boringUnreachable()
// Make a copy of d so that caller can keep writing and summing.
d0 := *d
hash := d0.checkSum()
// Sum returns the SHA-1 checksum of the data.
func Sum(data []byte) [Size]byte {
+ if boringEnabled {
+ h := New()
+ h.Write(data)
+ var ret [Size]byte
+ h.Sum(ret[:0])
+ return ret
+ }
var d digest
d.Reset()
d.Write(data)
"testing"
)
+import "crypto/internal/boring"
+
type sha1Test struct {
out string
in string
io.WriteString(c, g.in[len(g.in)/2:])
sum = c.Sum(nil)
case 3:
+ if boring.Enabled {
+ continue
+ }
io.WriteString(c, g.in[0:len(g.in)/2])
c.(*digest).ConstantTimeSum(nil)
io.WriteString(c, g.in[len(g.in)/2:])
// Tests that blockGeneric (pure Go) and block (in assembly for some architectures) match.
func TestBlockGeneric(t *testing.T) {
+ if boring.Enabled {
+ t.Skip("BoringCrypto doesn't expose digest")
+ }
for i := 1; i < 30; i++ { // arbitrary factor
gen, asm := New().(*digest), New().(*digest)
buf := make([]byte, BlockSize*i)
"hash"
)
+import "crypto/internal/boring"
+
func init() {
crypto.RegisterHash(crypto.SHA224, New224)
crypto.RegisterHash(crypto.SHA256, New)
// encoding.BinaryUnmarshaler to marshal and unmarshal the internal
// state of the hash.
func New() hash.Hash {
+ if boring.Enabled {
+ return boring.NewSHA256()
+ }
d := new(digest)
d.Reset()
return d
// New224 returns a new hash.Hash computing the SHA224 checksum.
func New224() hash.Hash {
+ if boring.Enabled {
+ return boring.NewSHA224()
+ }
d := new(digest)
d.is224 = true
d.Reset()
func (d *digest) BlockSize() int { return BlockSize }
func (d *digest) Write(p []byte) (nn int, err error) {
+ boring.Unreachable()
nn = len(p)
d.len += uint64(nn)
if d.nx > 0 {
}
func (d *digest) Sum(in []byte) []byte {
+ boring.Unreachable()
// Make a copy of d so that caller can keep writing and summing.
d0 := *d
hash := d0.checkSum()
// Sum256 returns the SHA256 checksum of the data.
func Sum256(data []byte) [Size]byte {
+ if boring.Enabled {
+ h := New()
+ h.Write(data)
+ var ret [Size]byte
+ h.Sum(ret[:0])
+ return ret
+ }
var d digest
d.Reset()
d.Write(data)
// Sum224 returns the SHA224 checksum of the data.
func Sum224(data []byte) (sum224 [Size224]byte) {
+ if boring.Enabled {
+ h := New224()
+ h.Write(data)
+ var ret [Size224]byte
+ h.Sum(ret[:0])
+ return ret
+ }
var d digest
d.is224 = true
d.Reset()
"testing"
)
+import "crypto/internal/boring"
+
type sha256Test struct {
out string
in string
// Tests that blockGeneric (pure Go) and block (in assembly for some architectures) match.
func TestBlockGeneric(t *testing.T) {
+ if boring.Enabled {
+ t.Skip("BoringCrypto doesn't expose digest")
+ }
gen, asm := New().(*digest), New().(*digest)
buf := make([]byte, BlockSize*20) // arbitrary factor
rand.Read(buf)
"hash"
)
+import "crypto/internal/boring"
+
func init() {
crypto.RegisterHash(crypto.SHA384, New384)
crypto.RegisterHash(crypto.SHA512, New)
// New returns a new hash.Hash computing the SHA-512 checksum.
func New() hash.Hash {
+ if boring.Enabled {
+ return boring.NewSHA512()
+ }
d := &digest{function: crypto.SHA512}
d.Reset()
return d
// New384 returns a new hash.Hash computing the SHA-384 checksum.
func New384() hash.Hash {
+ if boring.Enabled {
+ return boring.NewSHA384()
+ }
d := &digest{function: crypto.SHA384}
d.Reset()
return d
func (d *digest) BlockSize() int { return BlockSize }
func (d *digest) Write(p []byte) (nn int, err error) {
+ if d.function != crypto.SHA512_224 && d.function != crypto.SHA512_256 {
+ boring.Unreachable()
+ }
nn = len(p)
d.len += uint64(nn)
if d.nx > 0 {
}
func (d *digest) Sum(in []byte) []byte {
+ if d.function != crypto.SHA512_224 && d.function != crypto.SHA512_256 {
+ boring.Unreachable()
+ }
// Make a copy of d so that caller can keep writing and summing.
d0 := new(digest)
*d0 = *d
// Sum512 returns the SHA512 checksum of the data.
func Sum512(data []byte) [Size]byte {
+ if boring.Enabled {
+ h := New()
+ h.Write(data)
+ var ret [Size]byte
+ h.Sum(ret[:0])
+ return ret
+ }
d := digest{function: crypto.SHA512}
d.Reset()
d.Write(data)
// Sum384 returns the SHA384 checksum of the data.
func Sum384(data []byte) (sum384 [Size384]byte) {
+ if boring.Enabled {
+ h := New384()
+ h.Write(data)
+ var ret [Size384]byte
+ h.Sum(ret[:0])
+ return ret
+ }
d := digest{function: crypto.SHA384}
d.Reset()
d.Write(data)
"testing"
)
+import "crypto/internal/boring"
+
type sha512Test struct {
out string
in string
// Tests that blockGeneric (pure Go) and block (in assembly for some architectures) match.
func TestBlockGeneric(t *testing.T) {
+ if boring.Enabled {
+ t.Skip("BoringCrypto doesn't expose digest")
+ }
gen, asm := New().(*digest), New().(*digest)
buf := make([]byte, BlockSize*20) // arbitrary factor
rand.Read(buf)
// and optionally filtered by its explicit SupportedSignatureAlgorithms.
//
// This function must be kept in sync with supportedSignatureAlgorithms.
+// FIPS filtering is applied in the caller, selectSignatureScheme.
func signatureSchemesForCertificate(version uint16, cert *Certificate) []SignatureScheme {
priv, ok := cert.PrivateKey.(crypto.Signer)
if !ok {
// Pick signature scheme in the peer's preference order, as our
// preference order is not configurable.
for _, preferredAlg := range peerAlgs {
+ if needFIPS() && !isSupportedSignatureAlgorithm(preferredAlg, fipsSupportedSignatureAlgorithms) {
+ continue
+ }
if isSupportedSignatureAlgorithm(preferredAlg, supportedAlgs) {
return preferredAlg, nil
}
// TestSupportedSignatureAlgorithms checks that all supportedSignatureAlgorithms
// have valid type and hash information.
func TestSupportedSignatureAlgorithms(t *testing.T) {
- for _, sigAlg := range supportedSignatureAlgorithms {
+ for _, sigAlg := range supportedSignatureAlgorithms() {
sigType, hash, err := typeAndHashFromSignatureScheme(sigAlg)
if err != nil {
t.Errorf("%v: unexpected error: %v", sigAlg, err)
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package tls
+
+import (
+ "crypto/ecdsa"
+ "crypto/internal/boring/fipstls"
+ "crypto/rsa"
+ "crypto/x509"
+)
+
+// needFIPS returns fipstls.Required(); it avoids a new import in common.go.
+func needFIPS() bool {
+ return fipstls.Required()
+}
+
+// fipsMinVersion replaces c.minVersion in FIPS-only mode.
+func fipsMinVersion(c *Config) uint16 {
+ // FIPS requires TLS 1.2.
+ return VersionTLS12
+}
+
+// fipsMaxVersion replaces c.maxVersion in FIPS-only mode.
+func fipsMaxVersion(c *Config) uint16 {
+ // FIPS requires TLS 1.2.
+ return VersionTLS12
+}
+
+// default defaultFIPSCurvePreferences is the FIPS-allowed curves,
+// in preference order (most preferable first).
+var defaultFIPSCurvePreferences = []CurveID{CurveP256, CurveP384, CurveP521}
+
+// fipsCurvePreferences replaces c.curvePreferences in FIPS-only mode.
+func fipsCurvePreferences(c *Config) []CurveID {
+ if c == nil || len(c.CurvePreferences) == 0 {
+ return defaultFIPSCurvePreferences
+ }
+ var list []CurveID
+ for _, id := range c.CurvePreferences {
+ for _, allowed := range defaultFIPSCurvePreferences {
+ if id == allowed {
+ list = append(list, id)
+ break
+ }
+ }
+ }
+ return list
+}
+
+// defaultCipherSuitesFIPS are the FIPS-allowed cipher suites.
+var defaultCipherSuitesFIPS = []uint16{
+ TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+ TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+ TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+ TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+ TLS_RSA_WITH_AES_128_GCM_SHA256,
+ TLS_RSA_WITH_AES_256_GCM_SHA384,
+}
+
+// fipsCipherSuites replaces c.cipherSuites in FIPS-only mode.
+func fipsCipherSuites(c *Config) []uint16 {
+ if c == nil || c.CipherSuites == nil {
+ return defaultCipherSuitesFIPS
+ }
+ list := make([]uint16, 0, len(defaultCipherSuitesFIPS))
+ for _, id := range c.CipherSuites {
+ for _, allowed := range defaultCipherSuitesFIPS {
+ if id == allowed {
+ list = append(list, id)
+ break
+ }
+ }
+ }
+ return list
+}
+
+// isBoringCertificate reports whether a certificate may be used
+// when constructing a verified chain.
+// It is called for each leaf, intermediate, and root certificate.
+func isBoringCertificate(c *x509.Certificate) bool {
+ if !needFIPS() {
+ // Everything is OK if we haven't forced FIPS-only mode.
+ return true
+ }
+
+ // Otherwise the key must be RSA 2048, RSA 3072, or ECDSA P-256.
+ switch k := c.PublicKey.(type) {
+ default:
+ return false
+ case *rsa.PublicKey:
+ if size := k.N.BitLen(); size != 2048 && size != 3072 {
+ return false
+ }
+ case *ecdsa.PublicKey:
+ if name := k.Curve.Params().Name; name != "P-256" && name != "P-384" {
+ return false
+ }
+ }
+
+ return true
+}
+
+// fipsSupportedSignatureAlgorithms currently are a subset of
+// defaultSupportedSignatureAlgorithms without Ed25519 and SHA-1.
+var fipsSupportedSignatureAlgorithms = []SignatureScheme{
+ PSSWithSHA256,
+ PSSWithSHA384,
+ PSSWithSHA512,
+ PKCS1WithSHA256,
+ ECDSAWithP256AndSHA256,
+ PKCS1WithSHA384,
+ ECDSAWithP384AndSHA384,
+ PKCS1WithSHA512,
+ ECDSAWithP521AndSHA512,
+}
+
+// supportedSignatureAlgorithms returns the supported signature algorithms.
+func supportedSignatureAlgorithms() []SignatureScheme {
+ if !needFIPS() {
+ return defaultSupportedSignatureAlgorithms
+ }
+ return fipsSupportedSignatureAlgorithms
+}
+
+var testingOnlyForceClientHelloSignatureAlgorithms []SignatureScheme
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package tls
+
+import (
+ "crypto/ecdsa"
+ "crypto/elliptic"
+ "crypto/internal/boring/fipstls"
+ "crypto/rand"
+ "crypto/rsa"
+ "crypto/x509"
+ "crypto/x509/pkix"
+ "encoding/pem"
+ "fmt"
+ "math/big"
+ "net"
+ "runtime"
+ "strings"
+ "testing"
+ "time"
+)
+
+func TestBoringServerProtocolVersion(t *testing.T) {
+ test := func(name string, v uint16, msg string) {
+ t.Run(name, func(t *testing.T) {
+ serverConfig := testConfig.Clone()
+ serverConfig.MinVersion = VersionSSL30
+ clientHello := &clientHelloMsg{
+ vers: v,
+ random: make([]byte, 32),
+ cipherSuites: allCipherSuites(),
+ compressionMethods: []uint8{compressionNone},
+ supportedVersions: []uint16{v},
+ }
+ testClientHelloFailure(t, serverConfig, clientHello, msg)
+ })
+ }
+
+ test("VersionTLS10", VersionTLS10, "")
+ test("VersionTLS11", VersionTLS11, "")
+ test("VersionTLS12", VersionTLS12, "")
+ test("VersionTLS13", VersionTLS13, "")
+
+ fipstls.Force()
+ defer fipstls.Abandon()
+ test("VersionSSL30", VersionSSL30, "client offered only unsupported versions")
+ test("VersionTLS10", VersionTLS10, "client offered only unsupported versions")
+ test("VersionTLS11", VersionTLS11, "client offered only unsupported versions")
+ test("VersionTLS12", VersionTLS12, "")
+ test("VersionTLS13", VersionTLS13, "client offered only unsupported versions")
+}
+
+func isBoringVersion(v uint16) bool {
+ return v == VersionTLS12
+}
+
+func isBoringCipherSuite(id uint16) bool {
+ switch id {
+ case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+ TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+ TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+ TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+ TLS_RSA_WITH_AES_128_GCM_SHA256,
+ TLS_RSA_WITH_AES_256_GCM_SHA384:
+ return true
+ }
+ return false
+}
+
+func isBoringCurve(id CurveID) bool {
+ switch id {
+ case CurveP256, CurveP384, CurveP521:
+ return true
+ }
+ return false
+}
+
+func isECDSA(id uint16) bool {
+ for _, suite := range cipherSuites {
+ if suite.id == id {
+ return suite.flags&suiteECSign == suiteECSign
+ }
+ }
+ panic(fmt.Sprintf("unknown cipher suite %#x", id))
+}
+
+func isBoringSignatureScheme(alg SignatureScheme) bool {
+ switch alg {
+ default:
+ return false
+ case PKCS1WithSHA256,
+ ECDSAWithP256AndSHA256,
+ PKCS1WithSHA384,
+ ECDSAWithP384AndSHA384,
+ PKCS1WithSHA512,
+ ECDSAWithP521AndSHA512,
+ PSSWithSHA256,
+ PSSWithSHA384,
+ PSSWithSHA512:
+ // ok
+ }
+ return true
+}
+
+func TestBoringServerCipherSuites(t *testing.T) {
+ serverConfig := testConfig.Clone()
+ serverConfig.CipherSuites = allCipherSuites()
+ serverConfig.Certificates = make([]Certificate, 1)
+
+ for _, id := range allCipherSuites() {
+ if isECDSA(id) {
+ serverConfig.Certificates[0].Certificate = [][]byte{testECDSACertificate}
+ serverConfig.Certificates[0].PrivateKey = testECDSAPrivateKey
+ } else {
+ serverConfig.Certificates[0].Certificate = [][]byte{testRSACertificate}
+ serverConfig.Certificates[0].PrivateKey = testRSAPrivateKey
+ }
+ serverConfig.BuildNameToCertificate()
+ t.Run(fmt.Sprintf("suite=%#x", id), func(t *testing.T) {
+ clientHello := &clientHelloMsg{
+ vers: VersionTLS12,
+ random: make([]byte, 32),
+ cipherSuites: []uint16{id},
+ compressionMethods: []uint8{compressionNone},
+ supportedCurves: defaultCurvePreferences,
+ supportedPoints: []uint8{pointFormatUncompressed},
+ }
+
+ testClientHello(t, serverConfig, clientHello)
+ t.Run("fipstls", func(t *testing.T) {
+ fipstls.Force()
+ defer fipstls.Abandon()
+ msg := ""
+ if !isBoringCipherSuite(id) {
+ msg = "no cipher suite supported by both client and server"
+ }
+ testClientHelloFailure(t, serverConfig, clientHello, msg)
+ })
+ })
+ }
+}
+
+func TestBoringServerCurves(t *testing.T) {
+ serverConfig := testConfig.Clone()
+ serverConfig.Certificates = make([]Certificate, 1)
+ serverConfig.Certificates[0].Certificate = [][]byte{testECDSACertificate}
+ serverConfig.Certificates[0].PrivateKey = testECDSAPrivateKey
+ serverConfig.BuildNameToCertificate()
+
+ for _, curveid := range defaultCurvePreferences {
+ t.Run(fmt.Sprintf("curve=%d", curveid), func(t *testing.T) {
+ clientHello := &clientHelloMsg{
+ vers: VersionTLS12,
+ random: make([]byte, 32),
+ cipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ compressionMethods: []uint8{compressionNone},
+ supportedCurves: []CurveID{curveid},
+ supportedPoints: []uint8{pointFormatUncompressed},
+ }
+
+ testClientHello(t, serverConfig, clientHello)
+
+ // With fipstls forced, bad curves should be rejected.
+ t.Run("fipstls", func(t *testing.T) {
+ fipstls.Force()
+ defer fipstls.Abandon()
+ msg := ""
+ if !isBoringCurve(curveid) {
+ msg = "no cipher suite supported by both client and server"
+ }
+ testClientHelloFailure(t, serverConfig, clientHello, msg)
+ })
+ })
+ }
+}
+
+func boringHandshake(t *testing.T, clientConfig, serverConfig *Config) (clientErr, serverErr error) {
+ c, s := localPipe(t)
+ client := Client(c, clientConfig)
+ server := Server(s, serverConfig)
+ done := make(chan error, 1)
+ go func() {
+ done <- client.Handshake()
+ c.Close()
+ }()
+ serverErr = server.Handshake()
+ s.Close()
+ clientErr = <-done
+ return
+}
+
+func TestBoringServerSignatureAndHash(t *testing.T) {
+ defer func() {
+ testingOnlyForceClientHelloSignatureAlgorithms = nil
+ }()
+
+ for _, sigHash := range defaultSupportedSignatureAlgorithms {
+ t.Run(fmt.Sprintf("%#x", sigHash), func(t *testing.T) {
+ serverConfig := testConfig.Clone()
+ serverConfig.Certificates = make([]Certificate, 1)
+
+ testingOnlyForceClientHelloSignatureAlgorithms = []SignatureScheme{sigHash}
+
+ sigType, _, _ := typeAndHashFromSignatureScheme(sigHash)
+ switch sigType {
+ case signaturePKCS1v15, signatureRSAPSS:
+ serverConfig.CipherSuites = []uint16{TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256}
+ serverConfig.Certificates[0].Certificate = [][]byte{testRSA2048Certificate}
+ serverConfig.Certificates[0].PrivateKey = testRSA2048PrivateKey
+ case signatureEd25519:
+ serverConfig.CipherSuites = []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256}
+ serverConfig.Certificates[0].Certificate = [][]byte{testEd25519Certificate}
+ serverConfig.Certificates[0].PrivateKey = testEd25519PrivateKey
+ case signatureECDSA:
+ serverConfig.CipherSuites = []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256}
+ serverConfig.Certificates[0].Certificate = [][]byte{testECDSACertificate}
+ serverConfig.Certificates[0].PrivateKey = testECDSAPrivateKey
+ }
+ serverConfig.BuildNameToCertificate()
+ // PKCS#1 v1.5 signature algorithms can't be used standalone in TLS
+ // 1.3, and the ECDSA ones bind to the curve used.
+ serverConfig.MaxVersion = VersionTLS12
+
+ clientErr, serverErr := boringHandshake(t, testConfig, serverConfig)
+ if clientErr != nil {
+ t.Fatalf("expected handshake with %#x to succeed; client error: %v; server error: %v", sigHash, clientErr, serverErr)
+ }
+
+ // With fipstls forced, bad curves should be rejected.
+ t.Run("fipstls", func(t *testing.T) {
+ fipstls.Force()
+ defer fipstls.Abandon()
+ clientErr, _ := boringHandshake(t, testConfig, serverConfig)
+ if isBoringSignatureScheme(sigHash) {
+ if clientErr != nil {
+ t.Fatalf("expected handshake with %#x to succeed; err=%v", sigHash, clientErr)
+ }
+ } else {
+ if clientErr == nil {
+ t.Fatalf("expected handshake with %#x to fail, but it succeeded", sigHash)
+ }
+ }
+ })
+ })
+ }
+}
+
+func TestBoringClientHello(t *testing.T) {
+ // Test that no matter what we put in the client config,
+ // the client does not offer non-FIPS configurations.
+ fipstls.Force()
+ defer fipstls.Abandon()
+
+ c, s := net.Pipe()
+ defer c.Close()
+ defer s.Close()
+
+ clientConfig := testConfig.Clone()
+ // All sorts of traps for the client to avoid.
+ clientConfig.MinVersion = VersionSSL30
+ clientConfig.MaxVersion = VersionTLS13
+ clientConfig.CipherSuites = allCipherSuites()
+ clientConfig.CurvePreferences = defaultCurvePreferences
+
+ go Client(c, testConfig).Handshake()
+ srv := Server(s, testConfig)
+ msg, err := srv.readHandshake()
+ if err != nil {
+ t.Fatal(err)
+ }
+ hello, ok := msg.(*clientHelloMsg)
+ if !ok {
+ t.Fatalf("unexpected message type %T", msg)
+ }
+
+ if !isBoringVersion(hello.vers) {
+ t.Errorf("client vers=%#x, want %#x (TLS 1.2)", hello.vers, VersionTLS12)
+ }
+ for _, v := range hello.supportedVersions {
+ if !isBoringVersion(v) {
+ t.Errorf("client offered disallowed version %#x", v)
+ }
+ }
+ for _, id := range hello.cipherSuites {
+ if !isBoringCipherSuite(id) {
+ t.Errorf("client offered disallowed suite %#x", id)
+ }
+ }
+ for _, id := range hello.supportedCurves {
+ if !isBoringCurve(id) {
+ t.Errorf("client offered disallowed curve %d", id)
+ }
+ }
+ for _, sigHash := range hello.supportedSignatureAlgorithms {
+ if !isBoringSignatureScheme(sigHash) {
+ t.Errorf("client offered disallowed signature-and-hash %v", sigHash)
+ }
+ }
+}
+
+func TestBoringCertAlgs(t *testing.T) {
+ // NaCl, arm and wasm time out generating keys. Nothing in this test is architecture-specific, so just don't bother on those.
+ if runtime.GOOS == "nacl" || runtime.GOARCH == "arm" || runtime.GOOS == "js" {
+ t.Skipf("skipping on %s/%s because key generation takes too long", runtime.GOOS, runtime.GOARCH)
+ }
+
+ // Set up some roots, intermediate CAs, and leaf certs with various algorithms.
+ // X_Y is X signed by Y.
+ R1 := boringCert(t, "R1", boringRSAKey(t, 2048), nil, boringCertCA|boringCertFIPSOK)
+ R2 := boringCert(t, "R2", boringRSAKey(t, 4096), nil, boringCertCA)
+
+ M1_R1 := boringCert(t, "M1_R1", boringECDSAKey(t, elliptic.P256()), R1, boringCertCA|boringCertFIPSOK)
+ M2_R1 := boringCert(t, "M2_R1", boringECDSAKey(t, elliptic.P224()), R1, boringCertCA)
+
+ I_R1 := boringCert(t, "I_R1", boringRSAKey(t, 3072), R1, boringCertCA|boringCertFIPSOK)
+ I_R2 := boringCert(t, "I_R2", I_R1.key, R2, boringCertCA|boringCertFIPSOK)
+ I_M1 := boringCert(t, "I_M1", I_R1.key, M1_R1, boringCertCA|boringCertFIPSOK)
+ I_M2 := boringCert(t, "I_M2", I_R1.key, M2_R1, boringCertCA|boringCertFIPSOK)
+
+ L1_I := boringCert(t, "L1_I", boringECDSAKey(t, elliptic.P384()), I_R1, boringCertLeaf|boringCertFIPSOK)
+ L2_I := boringCert(t, "L2_I", boringRSAKey(t, 1024), I_R1, boringCertLeaf)
+
+ // boringCert checked that isBoringCertificate matches the caller's boringCertFIPSOK bit.
+ // If not, no point in building bigger end-to-end tests.
+ if t.Failed() {
+ t.Fatalf("isBoringCertificate failures; not continuing")
+ }
+
+ // client verifying server cert
+ testServerCert := func(t *testing.T, desc string, pool *x509.CertPool, key interface{}, list [][]byte, ok bool) {
+ clientConfig := testConfig.Clone()
+ clientConfig.RootCAs = pool
+ clientConfig.InsecureSkipVerify = false
+ clientConfig.ServerName = "example.com"
+
+ serverConfig := testConfig.Clone()
+ serverConfig.Certificates = []Certificate{{Certificate: list, PrivateKey: key}}
+ serverConfig.BuildNameToCertificate()
+
+ clientErr, _ := boringHandshake(t, clientConfig, serverConfig)
+
+ if (clientErr == nil) == ok {
+ if ok {
+ t.Logf("%s: accept", desc)
+ } else {
+ t.Logf("%s: reject", desc)
+ }
+ } else {
+ if ok {
+ t.Errorf("%s: BAD reject (%v)", desc, clientErr)
+ } else {
+ t.Errorf("%s: BAD accept", desc)
+ }
+ }
+ }
+
+ // server verifying client cert
+ testClientCert := func(t *testing.T, desc string, pool *x509.CertPool, key interface{}, list [][]byte, ok bool) {
+ clientConfig := testConfig.Clone()
+ clientConfig.ServerName = "example.com"
+ clientConfig.Certificates = []Certificate{{Certificate: list, PrivateKey: key}}
+
+ serverConfig := testConfig.Clone()
+ serverConfig.ClientCAs = pool
+ serverConfig.ClientAuth = RequireAndVerifyClientCert
+
+ _, serverErr := boringHandshake(t, clientConfig, serverConfig)
+
+ if (serverErr == nil) == ok {
+ if ok {
+ t.Logf("%s: accept", desc)
+ } else {
+ t.Logf("%s: reject", desc)
+ }
+ } else {
+ if ok {
+ t.Errorf("%s: BAD reject (%v)", desc, serverErr)
+ } else {
+ t.Errorf("%s: BAD accept", desc)
+ }
+ }
+ }
+
+ // Run simple basic test with known answers before proceeding to
+ // exhaustive test with computed answers.
+ r1pool := x509.NewCertPool()
+ r1pool.AddCert(R1.cert)
+ testServerCert(t, "basic", r1pool, L2_I.key, [][]byte{L2_I.der, I_R1.der}, true)
+ testClientCert(t, "basic (client cert)", r1pool, L2_I.key, [][]byte{L2_I.der, I_R1.der}, true)
+ fipstls.Force()
+ testServerCert(t, "basic (fips)", r1pool, L2_I.key, [][]byte{L2_I.der, I_R1.der}, false)
+ testClientCert(t, "basic (fips, client cert)", r1pool, L2_I.key, [][]byte{L2_I.der, I_R1.der}, false)
+ fipstls.Abandon()
+
+ if t.Failed() {
+ t.Fatal("basic test failed, skipping exhaustive test")
+ }
+
+ if testing.Short() {
+ t.Logf("basic test passed; skipping exhaustive test in -short mode")
+ return
+ }
+
+ for l := 1; l <= 2; l++ {
+ leaf := L1_I
+ if l == 2 {
+ leaf = L2_I
+ }
+ for i := 0; i < 64; i++ {
+ reachable := map[string]bool{leaf.parentOrg: true}
+ reachableFIPS := map[string]bool{leaf.parentOrg: leaf.fipsOK}
+ list := [][]byte{leaf.der}
+ listName := leaf.name
+ addList := func(cond int, c *boringCertificate) {
+ if cond != 0 {
+ list = append(list, c.der)
+ listName += "," + c.name
+ if reachable[c.org] {
+ reachable[c.parentOrg] = true
+ }
+ if reachableFIPS[c.org] && c.fipsOK {
+ reachableFIPS[c.parentOrg] = true
+ }
+ }
+ }
+ addList(i&1, I_R1)
+ addList(i&2, I_R2)
+ addList(i&4, I_M1)
+ addList(i&8, I_M2)
+ addList(i&16, M1_R1)
+ addList(i&32, M2_R1)
+
+ for r := 1; r <= 3; r++ {
+ pool := x509.NewCertPool()
+ rootName := ","
+ shouldVerify := false
+ shouldVerifyFIPS := false
+ addRoot := func(cond int, c *boringCertificate) {
+ if cond != 0 {
+ rootName += "," + c.name
+ pool.AddCert(c.cert)
+ if reachable[c.org] {
+ shouldVerify = true
+ }
+ if reachableFIPS[c.org] && c.fipsOK {
+ shouldVerifyFIPS = true
+ }
+ }
+ }
+ addRoot(r&1, R1)
+ addRoot(r&2, R2)
+ rootName = rootName[1:] // strip leading comma
+ testServerCert(t, listName+"->"+rootName[1:], pool, leaf.key, list, shouldVerify)
+ testClientCert(t, listName+"->"+rootName[1:]+"(client cert)", pool, leaf.key, list, shouldVerify)
+ fipstls.Force()
+ testServerCert(t, listName+"->"+rootName[1:]+" (fips)", pool, leaf.key, list, shouldVerifyFIPS)
+ testClientCert(t, listName+"->"+rootName[1:]+" (fips, client cert)", pool, leaf.key, list, shouldVerifyFIPS)
+ fipstls.Abandon()
+ }
+ }
+ }
+}
+
+const (
+ boringCertCA = iota
+ boringCertLeaf
+ boringCertFIPSOK = 0x80
+)
+
+func boringRSAKey(t *testing.T, size int) *rsa.PrivateKey {
+ k, err := rsa.GenerateKey(rand.Reader, size)
+ if err != nil {
+ t.Fatal(err)
+ }
+ return k
+}
+
+func boringECDSAKey(t *testing.T, curve elliptic.Curve) *ecdsa.PrivateKey {
+ k, err := ecdsa.GenerateKey(curve, rand.Reader)
+ if err != nil {
+ t.Fatal(err)
+ }
+ return k
+}
+
+type boringCertificate struct {
+ name string
+ org string
+ parentOrg string
+ der []byte
+ cert *x509.Certificate
+ key interface{}
+ fipsOK bool
+}
+
+func boringCert(t *testing.T, name string, key interface{}, parent *boringCertificate, mode int) *boringCertificate {
+ org := name
+ parentOrg := ""
+ if i := strings.Index(org, "_"); i >= 0 {
+ org = org[:i]
+ parentOrg = name[i+1:]
+ }
+ tmpl := &x509.Certificate{
+ SerialNumber: big.NewInt(1),
+ Subject: pkix.Name{
+ Organization: []string{org},
+ },
+ NotBefore: time.Unix(0, 0),
+ NotAfter: time.Unix(0, 0),
+
+ KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
+ ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},
+ BasicConstraintsValid: true,
+ }
+ if mode&^boringCertFIPSOK == boringCertLeaf {
+ tmpl.DNSNames = []string{"example.com"}
+ } else {
+ tmpl.IsCA = true
+ tmpl.KeyUsage |= x509.KeyUsageCertSign
+ }
+
+ var pcert *x509.Certificate
+ var pkey interface{}
+ if parent != nil {
+ pcert = parent.cert
+ pkey = parent.key
+ } else {
+ pcert = tmpl
+ pkey = key
+ }
+
+ var pub interface{}
+ var desc string
+ switch k := key.(type) {
+ case *rsa.PrivateKey:
+ pub = &k.PublicKey
+ desc = fmt.Sprintf("RSA-%d", k.N.BitLen())
+ case *ecdsa.PrivateKey:
+ pub = &k.PublicKey
+ desc = "ECDSA-" + k.Curve.Params().Name
+ default:
+ t.Fatalf("invalid key %T", key)
+ }
+
+ der, err := x509.CreateCertificate(rand.Reader, tmpl, pcert, pub, pkey)
+ if err != nil {
+ t.Fatal(err)
+ }
+ cert, err := x509.ParseCertificate(der)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Tell isBoringCertificate to enforce FIPS restrictions for this check.
+ fipstls.Force()
+ defer fipstls.Abandon()
+
+ fipsOK := mode&boringCertFIPSOK != 0
+ if isBoringCertificate(cert) != fipsOK {
+ t.Errorf("isBoringCertificate(cert with %s key) = %v, want %v", desc, !fipsOK, fipsOK)
+ }
+ return &boringCertificate{name, org, parentOrg, der, cert, key, fipsOK}
+}
+
+// A self-signed test certificate with an RSA key of size 2048, for testing
+// RSA-PSS with SHA512. SAN of example.golang.
+var (
+ testRSA2048Certificate []byte
+ testRSA2048PrivateKey *rsa.PrivateKey
+)
+
+func init() {
+ block, _ := pem.Decode([]byte(`
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----`))
+ testRSA2048Certificate = block.Bytes
+
+ block, _ = pem.Decode([]byte(`
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEAn/H5NDeonggV+CDlSHyorbeJBnDkC3opgn7I6qh3MrDCFRhL
+RUjOhOAMteNX/+yKnVtFLSKjW+D14UTiA+8g8UdvOMS+l2wrr/7eYT91HHoWHN4Z
+i4slXTJGUImVrX1FCX/9ajrTPqITYOfS0VqeHfuol9JWtSS9xMAiHJJDYyfYUGxe
+z29gkvhEvWKOeSgGqfCjm5aXEfDAUjd/G6p8I30HQl7zhDo2pth1MSsxBV+TAPnw
+NJnuAoqAnAkS1ipfhqDfRfHwAX6Gfk/tnmpeAy7jvea10fEqziFQYd1xTq/0VYY7
+V3DVRWSnLw7enevFeowCgGCpuZ5Y/Rj6XeL/qwIDAQABAoIBAQCNpMZifd/vg42h
+HdCvLuZaYS0R7SunFlpoXEsltGdLFsnp0IfoJZ/ugFQBSAIIfLwMumU6oXA1z7Uv
+98aIYV61DePrTCDVDFBsHbNmP8JAo8WtbusEbwd5zyoB7LYG2+clkJklWE73KqUq
+rmI+UJeyScl2Gin7ZTxBXz1WPBk9VwcnwkeaXpgASIBW23fhECM9gnYEEwaBez5T
+6Me8d1tHtYQv7vsKe7ro9w9/HKrRXejqYKK1LxkhfFriyV+m8LZJZn2nXOa6G3gF
+Nb8Qk1Uk5PUBENBmyMFJhT4M/uuSq4YtMrrO2gi8Q+fPhuGzc5SshYKRBp0W4P5r
+mtVCtEFRAoGBAMENBIFLrV2+HsGj0xYFasKov/QPe6HSTR1Hh2IZONp+oK4oszWE
+jBT4VcnITmpl6tC1Wy4GcrxjNgKIFZAj+1x1LUULdorXkuG8yr0tAhG9zNyfWsSy
+PrSovC0UVbzr8Jxxla+kQVxEQQqWQxPlEVuL8kXaIDA6Lyt1Hpua2LvPAoGBANQZ
+c6Lq2T7+BxLxNdi2m8kZzej5kgzBp/XdVsbFWRlebIX2KrFHsrHzT9PUk3DE1vZK
+M6pzTt94nQhWSkDgCaw1SohElJ3HFIFwcusF1SJAc3pQepd8ug6IYdlpDMLtBj/P
+/5P6BVUtgo05E4+I/T3iYatmglQxTtlZ0RkSV2llAoGBALOXkKFX7ahPvf0WksDh
+uTfuFOTPoowgQG0EpgW0wRdCxeg/JLic3lSD0gsttQV2WsRecryWcxaelRg10RmO
+38BbogmhaF4xvgsSvujOfiZTE8oK1T43M+6NKsIlML3YILbpU/9aJxPWy0s2DqDr
+cQJhZrlk+pzjBA7Bnf/URdwxAoGAKR/CNw14D+mrL3YLbbiCXiydqxVwxv5pdZdz
+8thi3TNcsWC4iGURdcVqbfUinVPdJiXe/Kac3WGCeRJaFVgbKAOxLti1RB5MkIhg
+D8eyupBqk4W1L1gkrxqsdj4TFlxkwMywjl2E2S4YyQ8PBt6V04DoVRZsIKzqz+PF
+UionPq0CgYBCYXvqioJhPewkOq/Y5wrDBeZW1FQK5QD9W5M8/5zxd4rdvJtjhbJp
+oOrtvMdrl6upy9Hz4BJD3FXwVFiPFE7jqeNqi0F21viLxBPMMD3UODF6LL5EyLiR
+9V4xVMS8KXxvg7rxsuqzMPscViaWUL6WNVBhsD2+92dHxSXzz5EJKQ==
+-----END RSA PRIVATE KEY-----`))
+ var err error
+ testRSA2048PrivateKey, err = x509.ParsePKCS1PrivateKey(block.Bytes)
+ if err != nil {
+ panic(err)
+ }
+}
package tls
+import "crypto/internal/boring"
+
import (
"crypto"
"crypto/aes"
// macSHA1 returns a SHA-1 based constant time MAC.
func macSHA1(key []byte) hash.Hash {
- return hmac.New(newConstantTimeHash(sha1.New), key)
+ h := sha1.New
+ // The BoringCrypto SHA1 does not have a constant-time
+ // checksum function, so don't try to use it.
+ if !boring.Enabled {
+ h = newConstantTimeHash(h)
+ }
+ return hmac.New(h, key)
}
// macSHA256 returns a SHA-256 based MAC. This is only supported in TLS 1.2 and
if err != nil {
panic(err)
}
- aead, err := cipher.NewGCM(aes)
+ type gcmtls interface {
+ NewGCMTLS() (cipher.AEAD, error)
+ }
+ var aead cipher.AEAD
+ if aesTLS, ok := aes.(gcmtls); ok {
+ aead, err = aesTLS.NewGCMTLS()
+ } else {
+ boring.Unreachable()
+ aead, err = cipher.NewGCM(aes)
+ }
if err != nil {
panic(err)
}
func (c *cthWrapper) Sum(b []byte) []byte { return c.h.ConstantTimeSum(b) }
func newConstantTimeHash(h func() hash.Hash) func() hash.Hash {
+ boring.Unreachable()
return func() hash.Hash {
return &cthWrapper{h().(constantTimeHash)}
}
// hash function associated with the Ed25519 signature scheme.
var directSigning crypto.Hash = 0
-// supportedSignatureAlgorithms contains the signature and hash algorithms that
+// defaultSupportedSignatureAlgorithms contains the signature and hash algorithms that
// the code advertises as supported in a TLS 1.2+ ClientHello and in a TLS 1.2+
// CertificateRequest. The two fields are merged to match with TLS 1.3.
// Note that in TLS 1.2, the ECDSA algorithms are not constrained to P-256, etc.
-var supportedSignatureAlgorithms = []SignatureScheme{
+var defaultSupportedSignatureAlgorithms = []SignatureScheme{
PSSWithSHA256,
ECDSAWithP256AndSHA256,
Ed25519,
}
func (c *Config) cipherSuites() []uint16 {
+ if needFIPS() {
+ return fipsCipherSuites(c)
+ }
if c.CipherSuites != nil {
return c.CipherSuites
}
func (c *Config) supportedVersions() []uint16 {
versions := make([]uint16, 0, len(supportedVersions))
for _, v := range supportedVersions {
+ if needFIPS() && (v < fipsMinVersion(c) || v > fipsMaxVersion(c)) {
+ continue
+ }
if c != nil && c.MinVersion != 0 && v < c.MinVersion {
continue
}
var defaultCurvePreferences = []CurveID{X25519, CurveP256, CurveP384, CurveP521}
func (c *Config) curvePreferences() []CurveID {
+ if needFIPS() {
+ return fipsCurvePreferences(c)
+ }
if c == nil || len(c.CurvePreferences) == 0 {
return defaultCurvePreferences
}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package fipsonly restricts all TLS configuration to FIPS-approved settings.
+//
+// The effect is triggered by importing the package anywhere in a program, as in:
+//
+// import _ "crypto/tls/fipsonly"
+//
+// This package only exists in the dev.boringcrypto branch of Go.
+package fipsonly
+
+// This functionality is provided as a side effect of an import to make
+// it trivial to add to an existing program. It requires only a single line
+// added to an existing source file, or it can be done by adding a whole
+// new source file and not modifying any existing source files.
+
+import (
+ "crypto/internal/boring/fipstls"
+ "crypto/internal/boring/sig"
+)
+
+func init() {
+ fipstls.Force()
+ sig.FIPSOnly()
+}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package fipsonly
+
+import (
+ "crypto/internal/boring/fipstls"
+ "testing"
+)
+
+func Test(t *testing.T) {
+ if !fipstls.Required() {
+ t.Fatal("fipstls.Required() = false, must be true")
+ }
+}
}
if hello.vers >= VersionTLS12 {
- hello.supportedSignatureAlgorithms = supportedSignatureAlgorithms
+ hello.supportedSignatureAlgorithms = supportedSignatureAlgorithms()
+ }
+ if testingOnlyForceClientHelloSignatureAlgorithms != nil {
+ hello.supportedSignatureAlgorithms = testingOnlyForceClientHelloSignatureAlgorithms
}
var params ecdheParameters
if !c.config.InsecureSkipVerify {
opts := x509.VerifyOptions{
+ IsBoring: isBoringCertificate,
+
Roots: c.config.RootCAs,
CurrentTime: c.config.time(),
DNSName: c.config.ServerName,
func (hs *clientHandshakeStateTLS13) handshake() error {
c := hs.c
+ if needFIPS() {
+ return errors.New("tls: internal error: TLS 1.3 reached in FIPS mode")
+ }
+
// The server must not select TLS 1.3 in a renegotiation. See RFC 8446,
// sections 4.1.2 and 4.1.3.
if c.handshakes > 0 {
}
// See RFC 8446, Section 4.4.3.
- if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, supportedSignatureAlgorithms) {
+ if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, supportedSignatureAlgorithms()) {
c.sendAlert(alertIllegalParameter)
return errors.New("tls: certificate used with invalid signature algorithm")
}
}
}
if rand.Intn(10) > 5 {
- m.supportedSignatureAlgorithms = supportedSignatureAlgorithms
+ m.supportedSignatureAlgorithms = supportedSignatureAlgorithms()
}
if rand.Intn(10) > 5 {
- m.supportedSignatureAlgorithmsCert = supportedSignatureAlgorithms
+ m.supportedSignatureAlgorithmsCert = supportedSignatureAlgorithms()
}
for i := 0; i < rand.Intn(5); i++ {
m.alpnProtocols = append(m.alpnProtocols, randomString(rand.Intn(20)+1, rand))
m.scts = true
}
if rand.Intn(10) > 5 {
- m.supportedSignatureAlgorithms = supportedSignatureAlgorithms
+ m.supportedSignatureAlgorithms = supportedSignatureAlgorithms()
}
if rand.Intn(10) > 5 {
- m.supportedSignatureAlgorithmsCert = supportedSignatureAlgorithms
+ m.supportedSignatureAlgorithmsCert = supportedSignatureAlgorithms()
}
if rand.Intn(10) > 5 {
m.certificateAuthorities = make([][]byte, 3)
}
if c.vers >= VersionTLS12 {
certReq.hasSignatureAlgorithm = true
- certReq.supportedSignatureAlgorithms = supportedSignatureAlgorithms
+ certReq.supportedSignatureAlgorithms = supportedSignatureAlgorithms()
}
// An empty list of certificateAuthorities signals to
if c.config.ClientAuth >= VerifyClientCertIfGiven && len(certs) > 0 {
opts := x509.VerifyOptions{
+ IsBoring: isBoringCertificate,
+
Roots: c.config.ClientCAs,
CurrentTime: c.config.time(),
Intermediates: x509.NewCertPool(),
func (hs *serverHandshakeStateTLS13) handshake() error {
c := hs.c
+ if needFIPS() {
+ return errors.New("tls: internal error: TLS 1.3 reached in FIPS mode")
+ }
+
// For an overview of the TLS 1.3 handshake, see RFC 8446, Section 2.
if err := hs.processClientHello(); err != nil {
return err
certReq := new(certificateRequestMsgTLS13)
certReq.ocspStapling = true
certReq.scts = true
- certReq.supportedSignatureAlgorithms = supportedSignatureAlgorithms
+ certReq.supportedSignatureAlgorithms = supportedSignatureAlgorithms()
if c.config.ClientCAs != nil {
certReq.certificateAuthorities = c.config.ClientCAs.Subjects()
}
}
// See RFC 8446, Section 4.4.3.
- if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, supportedSignatureAlgorithms) {
+ if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, supportedSignatureAlgorithms()) {
c.sendAlert(alertIllegalParameter)
return errors.New("tls: client certificate used with invalid signature algorithm")
}
// VerifyOptions contains parameters for Certificate.Verify.
type VerifyOptions struct {
+ // IsBoring is a validity check for BoringCrypto.
+ // If not nil, it will be called to check whether a given certificate
+ // can be used for constructing verification chains.
+ IsBoring func(*Certificate) bool
+
// DNSName, if set, is checked against the leaf certificate with
// Certificate.VerifyHostname or the platform verifier.
DNSName string
}
}
+ if opts.IsBoring != nil && !opts.IsBoring(c) {
+ // IncompatibleUsage is not quite right here,
+ // but it's also the "no chains found" error
+ // and is close enough.
+ return CertificateInvalidError{c, IncompatibleUsage, ""}
+ }
+
return nil
}
// cgo (if cgo is enabled)
// $GOOS
// $GOARCH
+// boringcrypto
// ctxt.Compiler
// linux (if GOOS = android)
// solaris (if GOOS = illumos)
if ctxt.GOOS == "ios" && name == "darwin" {
return true
}
+ // Let applications know that the Go+BoringCrypto toolchain is in use.
+ if name == "boringcrypto" {
+ return true
+ }
// other tags
for _, tag := range ctxt.BuildTags {
# Bulk of the standard library must not use cgo.
# The prohibition stops at net and os/user.
- C !< fmt, go/types, CRYPTO-MATH;
+ C !< fmt, go/types;
CGO, OS
< plugin;
NET, log
< net/mail;
- # CRYPTO is core crypto algorithms - no cgo, fmt, net.
- # Unfortunately, stuck with reflect via encoding/binary.
- encoding/binary, golang.org/x/sys/cpu, hash
+ NONE < crypto/internal/boring/sig;
+ sync/atomic < crypto/internal/boring/fipstls;
+
+ encoding/binary, golang.org/x/sys/cpu, hash,
+ FMT, math/big,
+ CGO, crypto/internal/boring/sig, crypto/internal/boring/fipstls
< crypto
< crypto/subtle
< crypto/internal/subtle
< crypto/ed25519/internal/edwards25519/field
< crypto/ed25519/internal/edwards25519
< crypto/cipher
+ < encoding/asn1
+ < crypto/internal/boring
< crypto/aes, crypto/des, crypto/hmac, crypto/md5, crypto/rc4,
crypto/sha1, crypto/sha256, crypto/sha512
- < CRYPTO;
-
- CGO, fmt, net !< CRYPTO;
-
- # CRYPTO-MATH is core bignum-based crypto - no cgo, net; fmt now ok.
- CRYPTO, FMT, math/big
< crypto/rand
< crypto/internal/randutil
< crypto/ed25519
- < encoding/asn1
< golang.org/x/crypto/cryptobyte/asn1
< golang.org/x/crypto/cryptobyte
< golang.org/x/crypto/curve25519
< crypto/dsa, crypto/elliptic, crypto/rsa
< crypto/ecdsa
- < CRYPTO-MATH;
+ < CRYPTO-BORING;
- CGO, net !< CRYPTO-MATH;
+ net !< CRYPTO-BORING;
# TLS, Prince of Dependencies.
- CRYPTO-MATH, NET, container/list, encoding/hex, encoding/pem
+ CRYPTO-BORING, NET, container/list, encoding/hex, encoding/pem
< golang.org/x/crypto/internal/subtle
< golang.org/x/crypto/chacha20
< golang.org/x/crypto/poly1305
< crypto/x509
< crypto/tls;
+ crypto/internal/boring/sig, crypto/internal/boring/fipstls
+ < crypto/tls/fipsonly;
+
+ crypto/internal/boring
+ < crypto/boring;
+
# crypto-aware packages
NET, crypto/rand, mime/quotedprintable
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Nothing to see here but the tests.
+// This file keeps 'go install internal/...' working.
+
+package boring
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Like crypto/rsa/boring_test.go but outside the crypto/ tree.
+// Tests what happens if a package outside the crypto/ tree
+// "adopts" a struct definition. This happens in golang.org/x/crypto/ssh.
+
+package boring
+
+import (
+ "crypto/rand"
+ "crypto/rsa"
+ "encoding/asn1"
+ "reflect"
+ "testing"
+)
+
+type publicKey rsa.PublicKey
+
+func TestBoringASN1Marshal(t *testing.T) {
+ k, err := rsa.GenerateKey(rand.Reader, 128)
+ if err != nil {
+ t.Fatal(err)
+ }
+ pk := (*publicKey)(&k.PublicKey)
+ // This used to fail, because of the unexported 'boring' field.
+ // Now the compiler hides it [sic].
+ _, err = asn1.Marshal(*pk)
+ if err != nil {
+ t.Fatal(err)
+ }
+}
+
+func TestBoringDeepEqual(t *testing.T) {
+ k0, err := rsa.GenerateKey(rand.Reader, 128)
+ if err != nil {
+ t.Fatal(err)
+ }
+ k := (*publicKey)(&k0.PublicKey)
+ k2 := *k
+ rsa.EncryptPKCS1v15(rand.Reader, (*rsa.PublicKey)(&k2), []byte("hello")) // initialize hidden boring field
+ if !reflect.DeepEqual(k, &k2) {
+ // compiler should be hiding the boring field from reflection
+ t.Fatalf("DeepEqual compared boring fields")
+ }
+}
import (
"bytes"
- "crypto/sha1"
"errors"
"fmt"
+ "hash/crc32"
"io"
"os"
"runtime"
err = nil
}
}()
- h := sha1.New()
+ h := crc32.New(crc32.MakeTable(0x12345678))
for b := range in {
h.Write(b)
}
--- /dev/null
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import _ "unsafe" // for go:linkname
+
+//go:linkname boring_runtime_arg0 crypto/internal/boring.runtime_arg0
+func boring_runtime_arg0() string {
+ // On Windows, argslice is not set, and it's too much work to find argv0.
+ if len(argslice) == 0 {
+ return ""
+ }
+ return argslice[0]
+}
+
+//go:linkname fipstls_runtime_arg0 crypto/internal/boring/fipstls.runtime_arg0
+func fipstls_runtime_arg0() string { return boring_runtime_arg0() }