@node Download
@unnumbered Download

Preferable way is to download tarball with the signature from
website and, for example, run tests with benchmarks:

@example
$ [fetch|wget] http://www.gogost.cypherpunks.ru/gogost-@value{VERSION}.tar.zst
$ [fetch|wget] http://www.gogost.cypherpunks.ru/gogost-@value{VERSION}.tar.zst.@{asc,sig@}
[verify signature]
$ tar xf gogost-@value{VERSION}.tar.zst
$ cd gogost-@value{VERSION}
$ go build -mod=vendor -o streebog256 ./cmd/streebog256
$ echo hello world | ./streebog256
f72018189a5cfb803dbe1f2149cf554c40093d8e7f81c21e08ac5bcd09d9934d
@end example

@include download.texi

And then you can include its source code in your project for example
like this:

@example
$ mkdir -p myproj/vendor/go.cypherpunks.ru/gogost
$ mv gogost-@value{VERSION} myproj/vendor/go.cypherpunks.ru/gogost/v5
$ cd myproj
$ cat >main.go <<EOF
package main

import (
    "encoding/hex"
    "fmt"

    "go.cypherpunks.ru/gogost/v5/gost34112012256"
)

func main() @{
    h := gost34112012256.New()
    h.Write([]byte("hello world\n"))
    fmt.Println(hex.EncodeToString(h.Sum(nil)))
@}
EOF
$ go run main.go
f72018189a5cfb803dbe1f2149cf554c40093d8e7f81c21e08ac5bcd09d9934d
@end example

@include integrity.texi

GoGOST is also @command{go get}-able. For example to install
@command{streebog256} utility:

@example
$ go install go.cypherpunks.ru/gogost/v5/cmd/streebog256@@latest
@end example

Aware that @code{go.cypherpunks.ru} uses
@url{//www.ca.cypherpunks.ru, ca.cypherpunks.ru} X.509 certificate authority.

@itemize

@item Go's default @code{proxy.golang.org} and @code{sum.golang.org}
services won't be able to verify @code{go.cypherpunks.ru}'s TLS
authenticity, because there are no common trust anchors. You can skip
their usage by setting @env{$GOPRIVATE=go.cypherpunks.ru}.

@item You can (temporarily) override CA bundle during installation with
@env{$SSL_CERT_FILE} environment variable.

@item You can unpack tarball somewhere and use @code{replace} command in
your local @file{go.mod}:

@example
require go.cypherpunks.ru/gogost/v5 v@value{VERSION}
replace go.cypherpunks.ru/gogost/v5 => /path/to/gogost-@value{VERSION}
@end example

@end itemize

You can obtain development source code with
@command{git clone git://git.cypherpunks.ru/gogost.git}
(also you can use @url{https://git.cypherpunks.ru/gogost.git}).