--- /dev/null
+// GoGOST -- Pure Go GOST cryptographic functions library
+// Copyright (C) 2015-2019 Sergey Matveev <stargrave@stargrave.org>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 3 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+package gost3412128
+
+import (
+ "bytes"
+ "crypto/cipher"
+ "crypto/rand"
+ "io"
+ "testing"
+ "testing/quick"
+)
+
+var (
+ key []byte = []byte{
+ 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
+ 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
+ 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+ }
+ pt [BlockSize]byte = [BlockSize]byte{
+ 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x00,
+ 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88,
+ }
+ ct [BlockSize]byte = [BlockSize]byte{
+ 0x7f, 0x67, 0x9d, 0x90, 0xbe, 0xbc, 0x24, 0x30,
+ 0x5a, 0x46, 0x8d, 0x42, 0xb9, 0xd4, 0xed, 0xcd,
+ }
+)
+
+func TestCipherInterface(t *testing.T) {
+ var _ cipher.Block = NewCipher(make([]byte, KeySize))
+}
+
+func TestRandom(t *testing.T) {
+ data := make([]byte, BlockSize)
+ f := func(key [KeySize]byte, pt [BlockSize]byte) bool {
+ io.ReadFull(rand.Reader, key[:])
+ c := NewCipher(key[:])
+ c.Encrypt(data, pt[:])
+ c.Decrypt(data, data)
+ return bytes.Compare(data, pt[:]) == 0
+ }
+ if err := quick.Check(f, nil); err != nil {
+ t.Error(err)
+ }
+}
+
+func BenchmarkEncrypt(b *testing.B) {
+ key := make([]byte, KeySize)
+ io.ReadFull(rand.Reader, key)
+ c := NewCipher(key)
+ blk := make([]byte, BlockSize)
+ b.ResetTimer()
+ for i := 0; i < b.N; i++ {
+ c.Encrypt(blk, blk)
+ }
+}
+
+func BenchmarkDecrypt(b *testing.B) {
+ key := make([]byte, KeySize)
+ io.ReadFull(rand.Reader, key)
+ c := NewCipher(key)
+ blk := make([]byte, BlockSize)
+ b.ResetTimer()
+ for i := 0; i < b.N; i++ {
+ c.Decrypt(blk, blk)
+ }
+}
+
+func TestS(t *testing.T) {
+ blk := [BlockSize]byte{
+ 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88,
+ 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x00,
+ }
+ s(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0xb6, 0x6c, 0xd8, 0x88, 0x7d, 0x38, 0xe8, 0xd7,
+ 0x77, 0x65, 0xae, 0xea, 0x0c, 0x9a, 0x7e, 0xfc,
+ }) != 0 {
+ t.FailNow()
+ }
+ s(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0x55, 0x9d, 0x8d, 0xd7, 0xbd, 0x06, 0xcb, 0xfe,
+ 0x7e, 0x7b, 0x26, 0x25, 0x23, 0x28, 0x0d, 0x39,
+ }) != 0 {
+ t.FailNow()
+ }
+ s(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0x0c, 0x33, 0x22, 0xfe, 0xd5, 0x31, 0xe4, 0x63,
+ 0x0d, 0x80, 0xef, 0x5c, 0x5a, 0x81, 0xc5, 0x0b,
+ }) != 0 {
+ t.FailNow()
+ }
+ s(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0x23, 0xae, 0x65, 0x63, 0x3f, 0x84, 0x2d, 0x29,
+ 0xc5, 0xdf, 0x52, 0x9c, 0x13, 0xf5, 0xac, 0xda,
+ }) != 0 {
+ t.FailNow()
+ }
+}
+
+func R(blk *[BlockSize]byte) {
+ l(blk, 1)
+}
+
+func TestR(t *testing.T) {
+ blk := [BlockSize]byte{
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+ }
+ R(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ }) != 0 {
+ t.FailNow()
+ }
+ R(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ }) != 0 {
+ t.FailNow()
+ }
+ R(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0x64, 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ }) != 0 {
+ t.FailNow()
+ }
+ R(&blk)
+ if bytes.Compare(blk[:], []byte{
+ 0x0d, 0x64, 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ }) != 0 {
+ t.FailNow()
+ }
+}
+
+func TestL(t *testing.T) {
+ blk := [BlockSize]byte{
+ 0x64, 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ }
+ l(&blk, 16)
+ if bytes.Compare(blk[:], []byte{
+ 0xd4, 0x56, 0x58, 0x4d, 0xd0, 0xe3, 0xe8, 0x4c,
+ 0xc3, 0x16, 0x6e, 0x4b, 0x7f, 0xa2, 0x89, 0x0d,
+ }) != 0 {
+ t.FailNow()
+ }
+ l(&blk, 16)
+ if bytes.Compare(blk[:], []byte{
+ 0x79, 0xd2, 0x62, 0x21, 0xb8, 0x7b, 0x58, 0x4c,
+ 0xd4, 0x2f, 0xbc, 0x4f, 0xfe, 0xa5, 0xde, 0x9a,
+ }) != 0 {
+ t.FailNow()
+ }
+ l(&blk, 16)
+ if bytes.Compare(blk[:], []byte{
+ 0x0e, 0x93, 0x69, 0x1a, 0x0c, 0xfc, 0x60, 0x40,
+ 0x8b, 0x7b, 0x68, 0xf6, 0x6b, 0x51, 0x3c, 0x13,
+ }) != 0 {
+ t.FailNow()
+ }
+ l(&blk, 16)
+ if bytes.Compare(blk[:], []byte{
+ 0xe6, 0xa8, 0x09, 0x4f, 0xee, 0x0a, 0xa2, 0x04,
+ 0xfd, 0x97, 0xbc, 0xb0, 0xb4, 0x4b, 0x85, 0x80,
+ }) != 0 {
+ t.FailNow()
+ }
+}
+
+func TestC(t *testing.T) {
+ if bytes.Compare(cBlk[0][:], []byte{
+ 0x6e, 0xa2, 0x76, 0x72, 0x6c, 0x48, 0x7a, 0xb8,
+ 0x5d, 0x27, 0xbd, 0x10, 0xdd, 0x84, 0x94, 0x01,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(cBlk[1][:], []byte{
+ 0xdc, 0x87, 0xec, 0xe4, 0xd8, 0x90, 0xf4, 0xb3,
+ 0xba, 0x4e, 0xb9, 0x20, 0x79, 0xcb, 0xeb, 0x02,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(cBlk[2][:], []byte{
+ 0xb2, 0x25, 0x9a, 0x96, 0xb4, 0xd8, 0x8e, 0x0b,
+ 0xe7, 0x69, 0x04, 0x30, 0xa4, 0x4f, 0x7f, 0x03,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(cBlk[3][:], []byte{
+ 0x7b, 0xcd, 0x1b, 0x0b, 0x73, 0xe3, 0x2b, 0xa5,
+ 0xb7, 0x9c, 0xb1, 0x40, 0xf2, 0x55, 0x15, 0x04,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(cBlk[4][:], []byte{
+ 0x15, 0x6f, 0x6d, 0x79, 0x1f, 0xab, 0x51, 0x1d,
+ 0xea, 0xbb, 0x0c, 0x50, 0x2f, 0xd1, 0x81, 0x05,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(cBlk[5][:], []byte{
+ 0xa7, 0x4a, 0xf7, 0xef, 0xab, 0x73, 0xdf, 0x16,
+ 0x0d, 0xd2, 0x08, 0x60, 0x8b, 0x9e, 0xfe, 0x06,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(cBlk[6][:], []byte{
+ 0xc9, 0xe8, 0x81, 0x9d, 0xc7, 0x3b, 0xa5, 0xae,
+ 0x50, 0xf5, 0xb5, 0x70, 0x56, 0x1a, 0x6a, 0x07,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(cBlk[7][:], []byte{
+ 0xf6, 0x59, 0x36, 0x16, 0xe6, 0x05, 0x56, 0x89,
+ 0xad, 0xfb, 0xa1, 0x80, 0x27, 0xaa, 0x2a, 0x08,
+ }) != 0 {
+ t.FailNow()
+ }
+}
+
+func TestRoundKeys(t *testing.T) {
+ c := NewCipher(key)
+ if bytes.Compare(c.ks[0][:], []byte{
+ 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
+ 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[1][:], []byte{
+ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
+ 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[2][:], []byte{
+ 0xdb, 0x31, 0x48, 0x53, 0x15, 0x69, 0x43, 0x43,
+ 0x22, 0x8d, 0x6a, 0xef, 0x8c, 0xc7, 0x8c, 0x44,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[3][:], []byte{
+ 0x3d, 0x45, 0x53, 0xd8, 0xe9, 0xcf, 0xec, 0x68,
+ 0x15, 0xeb, 0xad, 0xc4, 0x0a, 0x9f, 0xfd, 0x04,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[4][:], []byte{
+ 0x57, 0x64, 0x64, 0x68, 0xc4, 0x4a, 0x5e, 0x28,
+ 0xd3, 0xe5, 0x92, 0x46, 0xf4, 0x29, 0xf1, 0xac,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[5][:], []byte{
+ 0xbd, 0x07, 0x94, 0x35, 0x16, 0x5c, 0x64, 0x32,
+ 0xb5, 0x32, 0xe8, 0x28, 0x34, 0xda, 0x58, 0x1b,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[6][:], []byte{
+ 0x51, 0xe6, 0x40, 0x75, 0x7e, 0x87, 0x45, 0xde,
+ 0x70, 0x57, 0x27, 0x26, 0x5a, 0x00, 0x98, 0xb1,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[7][:], []byte{
+ 0x5a, 0x79, 0x25, 0x01, 0x7b, 0x9f, 0xdd, 0x3e,
+ 0xd7, 0x2a, 0x91, 0xa2, 0x22, 0x86, 0xf9, 0x84,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[8][:], []byte{
+ 0xbb, 0x44, 0xe2, 0x53, 0x78, 0xc7, 0x31, 0x23,
+ 0xa5, 0xf3, 0x2f, 0x73, 0xcd, 0xb6, 0xe5, 0x17,
+ }) != 0 {
+ t.FailNow()
+ }
+ if bytes.Compare(c.ks[9][:], []byte{
+ 0x72, 0xe9, 0xdd, 0x74, 0x16, 0xbc, 0xf4, 0x5b,
+ 0x75, 0x5d, 0xba, 0xa8, 0x8e, 0x4a, 0x40, 0x43,
+ }) != 0 {
+ t.FailNow()
+ }
+}
+
+func TestVectorEncrypt(t *testing.T) {
+ c := NewCipher(key)
+ dst := make([]byte, BlockSize)
+ c.Encrypt(dst, pt[:])
+ if bytes.Compare(dst, ct[:]) != 0 {
+ t.FailNow()
+ }
+}
+
+func TestVectorDecrypt(t *testing.T) {
+ c := NewCipher(key)
+ dst := make([]byte, BlockSize)
+ c.Decrypt(dst, ct[:])
+ if bytes.Compare(dst, pt[:]) != 0 {
+ t.FailNow()
+ }
+}