gost3412128/cipher_test.go

   1 // GoGOST -- Pure Go GOST cryptographic functions library
   2 // Copyright (C) 2015-2021 Sergey Matveev <stargrave@stargrave.org>
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, version 3 of the License.
   7 //
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 package gost3412128
  17
  18 import (
  19         "bytes"
  20         "crypto/cipher"
  21         "crypto/rand"
  22         "io"
  23         "testing"
  24         "testing/quick"
  25 )
  26
  27 var (
  28         key []byte = []byte{
  29                 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
  30                 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
  31                 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
  32                 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
  33         }
  34         pt [BlockSize]byte = [BlockSize]byte{
  35                 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x00,
  36                 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88,
  37         }
  38         ct [BlockSize]byte = [BlockSize]byte{
  39                 0x7f, 0x67, 0x9d, 0x90, 0xbe, 0xbc, 0x24, 0x30,
  40                 0x5a, 0x46, 0x8d, 0x42, 0xb9, 0xd4, 0xed, 0xcd,
  41         }
  42 )
  43
  44 func TestCipherInterface(t *testing.T) {
  45         var _ cipher.Block = NewCipher(make([]byte, KeySize))
  46 }
  47
  48 func TestRandom(t *testing.T) {
  49         data := make([]byte, BlockSize)
  50         f := func(key [KeySize]byte, pt [BlockSize]byte) bool {
  51                 io.ReadFull(rand.Reader, key[:])
  52                 c := NewCipher(key[:])
  53                 c.Encrypt(data, pt[:])
  54                 c.Decrypt(data, data)
  55                 return bytes.Compare(data, pt[:]) == 0
  56         }
  57         if err := quick.Check(f, nil); err != nil {
  58                 t.Error(err)
  59         }
  60 }
  61
  62 func BenchmarkEncrypt(b *testing.B) {
  63         key := make([]byte, KeySize)
  64         io.ReadFull(rand.Reader, key)
  65         c := NewCipher(key)
  66         blk := make([]byte, BlockSize)
  67         b.ResetTimer()
  68         for i := 0; i < b.N; i++ {
  69                 c.Encrypt(blk, blk)
  70         }
  71 }
  72
  73 func BenchmarkDecrypt(b *testing.B) {
  74         key := make([]byte, KeySize)
  75         io.ReadFull(rand.Reader, key)
  76         c := NewCipher(key)
  77         blk := make([]byte, BlockSize)
  78         b.ResetTimer()
  79         for i := 0; i < b.N; i++ {
  80                 c.Decrypt(blk, blk)
  81         }
  82 }
  83
  84 func TestS(t *testing.T) {
  85         blk := [BlockSize]byte{
  86                 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88,
  87                 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x00,
  88         }
  89         s(blk[:])
  90         if bytes.Compare(blk[:], []byte{
  91                 0xb6, 0x6c, 0xd8, 0x88, 0x7d, 0x38, 0xe8, 0xd7,
  92                 0x77, 0x65, 0xae, 0xea, 0x0c, 0x9a, 0x7e, 0xfc,
  93         }) != 0 {
  94                 t.FailNow()
  95         }
  96         s(blk[:])
  97         if bytes.Compare(blk[:], []byte{
  98                 0x55, 0x9d, 0x8d, 0xd7, 0xbd, 0x06, 0xcb, 0xfe,
  99                 0x7e, 0x7b, 0x26, 0x25, 0x23, 0x28, 0x0d, 0x39,
 100         }) != 0 {
 101                 t.FailNow()
 102         }
 103         s(blk[:])
 104         if bytes.Compare(blk[:], []byte{
 105                 0x0c, 0x33, 0x22, 0xfe, 0xd5, 0x31, 0xe4, 0x63,
 106                 0x0d, 0x80, 0xef, 0x5c, 0x5a, 0x81, 0xc5, 0x0b,
 107         }) != 0 {
 108                 t.FailNow()
 109         }
 110         s(blk[:])
 111         if bytes.Compare(blk[:], []byte{
 112                 0x23, 0xae, 0x65, 0x63, 0x3f, 0x84, 0x2d, 0x29,
 113                 0xc5, 0xdf, 0x52, 0x9c, 0x13, 0xf5, 0xac, 0xda,
 114         }) != 0 {
 115                 t.FailNow()
 116         }
 117 }
 118
 119 func R(blk []byte) {
 120         t := blk[15]
 121         for i := 0; i < 15; i++ {
 122                 t ^= gfCache[blk[i]][lc[i]]
 123         }
 124         copy(blk[1:], blk)
 125         blk[0] = t
 126 }
 127
 128 func TestR(t *testing.T) {
 129         blk := [BlockSize]byte{
 130                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 131                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
 132         }
 133         R(blk[:])
 134         if bytes.Compare(blk[:], []byte{
 135                 0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 136                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
 137         }) != 0 {
 138                 t.FailNow()
 139         }
 140         R(blk[:])
 141         if bytes.Compare(blk[:], []byte{
 142                 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 143                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 144         }) != 0 {
 145                 t.FailNow()
 146         }
 147         R(blk[:])
 148         if bytes.Compare(blk[:], []byte{
 149                 0x64, 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00,
 150                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 151         }) != 0 {
 152                 t.FailNow()
 153         }
 154         R(blk[:])
 155         if bytes.Compare(blk[:], []byte{
 156                 0x0d, 0x64, 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00,
 157                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 158         }) != 0 {
 159                 t.FailNow()
 160         }
 161 }
 162
 163 func TestL(t *testing.T) {
 164         blk := [BlockSize]byte{
 165                 0x64, 0xa5, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00,
 166                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 167         }
 168         l(blk[:])
 169         if bytes.Compare(blk[:], []byte{
 170                 0xd4, 0x56, 0x58, 0x4d, 0xd0, 0xe3, 0xe8, 0x4c,
 171                 0xc3, 0x16, 0x6e, 0x4b, 0x7f, 0xa2, 0x89, 0x0d,
 172         }) != 0 {
 173                 t.FailNow()
 174         }
 175         l(blk[:])
 176         if bytes.Compare(blk[:], []byte{
 177                 0x79, 0xd2, 0x62, 0x21, 0xb8, 0x7b, 0x58, 0x4c,
 178                 0xd4, 0x2f, 0xbc, 0x4f, 0xfe, 0xa5, 0xde, 0x9a,
 179         }) != 0 {
 180                 t.FailNow()
 181         }
 182         l(blk[:])
 183         if bytes.Compare(blk[:], []byte{
 184                 0x0e, 0x93, 0x69, 0x1a, 0x0c, 0xfc, 0x60, 0x40,
 185                 0x8b, 0x7b, 0x68, 0xf6, 0x6b, 0x51, 0x3c, 0x13,
 186         }) != 0 {
 187                 t.FailNow()
 188         }
 189         l(blk[:])
 190         if bytes.Compare(blk[:], []byte{
 191                 0xe6, 0xa8, 0x09, 0x4f, 0xee, 0x0a, 0xa2, 0x04,
 192                 0xfd, 0x97, 0xbc, 0xb0, 0xb4, 0x4b, 0x85, 0x80,
 193         }) != 0 {
 194                 t.FailNow()
 195         }
 196 }
 197
 198 func TestC(t *testing.T) {
 199         if bytes.Compare(cBlk[0][:], []byte{
 200                 0x6e, 0xa2, 0x76, 0x72, 0x6c, 0x48, 0x7a, 0xb8,
 201                 0x5d, 0x27, 0xbd, 0x10, 0xdd, 0x84, 0x94, 0x01,
 202         }) != 0 {
 203                 t.FailNow()
 204         }
 205         if bytes.Compare(cBlk[1][:], []byte{
 206                 0xdc, 0x87, 0xec, 0xe4, 0xd8, 0x90, 0xf4, 0xb3,
 207                 0xba, 0x4e, 0xb9, 0x20, 0x79, 0xcb, 0xeb, 0x02,
 208         }) != 0 {
 209                 t.FailNow()
 210         }
 211         if bytes.Compare(cBlk[2][:], []byte{
 212                 0xb2, 0x25, 0x9a, 0x96, 0xb4, 0xd8, 0x8e, 0x0b,
 213                 0xe7, 0x69, 0x04, 0x30, 0xa4, 0x4f, 0x7f, 0x03,
 214         }) != 0 {
 215                 t.FailNow()
 216         }
 217         if bytes.Compare(cBlk[3][:], []byte{
 218                 0x7b, 0xcd, 0x1b, 0x0b, 0x73, 0xe3, 0x2b, 0xa5,
 219                 0xb7, 0x9c, 0xb1, 0x40, 0xf2, 0x55, 0x15, 0x04,
 220         }) != 0 {
 221                 t.FailNow()
 222         }
 223         if bytes.Compare(cBlk[4][:], []byte{
 224                 0x15, 0x6f, 0x6d, 0x79, 0x1f, 0xab, 0x51, 0x1d,
 225                 0xea, 0xbb, 0x0c, 0x50, 0x2f, 0xd1, 0x81, 0x05,
 226         }) != 0 {
 227                 t.FailNow()
 228         }
 229         if bytes.Compare(cBlk[5][:], []byte{
 230                 0xa7, 0x4a, 0xf7, 0xef, 0xab, 0x73, 0xdf, 0x16,
 231                 0x0d, 0xd2, 0x08, 0x60, 0x8b, 0x9e, 0xfe, 0x06,
 232         }) != 0 {
 233                 t.FailNow()
 234         }
 235         if bytes.Compare(cBlk[6][:], []byte{
 236                 0xc9, 0xe8, 0x81, 0x9d, 0xc7, 0x3b, 0xa5, 0xae,
 237                 0x50, 0xf5, 0xb5, 0x70, 0x56, 0x1a, 0x6a, 0x07,
 238         }) != 0 {
 239                 t.FailNow()
 240         }
 241         if bytes.Compare(cBlk[7][:], []byte{
 242                 0xf6, 0x59, 0x36, 0x16, 0xe6, 0x05, 0x56, 0x89,
 243                 0xad, 0xfb, 0xa1, 0x80, 0x27, 0xaa, 0x2a, 0x08,
 244         }) != 0 {
 245                 t.FailNow()
 246         }
 247 }
 248
 249 func TestRoundKeys(t *testing.T) {
 250         c := NewCipher(key)
 251         if bytes.Compare(c.ks[0][:], []byte{
 252                 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
 253                 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
 254         }) != 0 {
 255                 t.FailNow()
 256         }
 257         if bytes.Compare(c.ks[1][:], []byte{
 258                 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
 259                 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
 260         }) != 0 {
 261                 t.FailNow()
 262         }
 263         if bytes.Compare(c.ks[2][:], []byte{
 264                 0xdb, 0x31, 0x48, 0x53, 0x15, 0x69, 0x43, 0x43,
 265                 0x22, 0x8d, 0x6a, 0xef, 0x8c, 0xc7, 0x8c, 0x44,
 266         }) != 0 {
 267                 t.FailNow()
 268         }
 269         if bytes.Compare(c.ks[3][:], []byte{
 270                 0x3d, 0x45, 0x53, 0xd8, 0xe9, 0xcf, 0xec, 0x68,
 271                 0x15, 0xeb, 0xad, 0xc4, 0x0a, 0x9f, 0xfd, 0x04,
 272         }) != 0 {
 273                 t.FailNow()
 274         }
 275         if bytes.Compare(c.ks[4][:], []byte{
 276                 0x57, 0x64, 0x64, 0x68, 0xc4, 0x4a, 0x5e, 0x28,
 277                 0xd3, 0xe5, 0x92, 0x46, 0xf4, 0x29, 0xf1, 0xac,
 278         }) != 0 {
 279                 t.FailNow()
 280         }
 281         if bytes.Compare(c.ks[5][:], []byte{
 282                 0xbd, 0x07, 0x94, 0x35, 0x16, 0x5c, 0x64, 0x32,
 283                 0xb5, 0x32, 0xe8, 0x28, 0x34, 0xda, 0x58, 0x1b,
 284         }) != 0 {
 285                 t.FailNow()
 286         }
 287         if bytes.Compare(c.ks[6][:], []byte{
 288                 0x51, 0xe6, 0x40, 0x75, 0x7e, 0x87, 0x45, 0xde,
 289                 0x70, 0x57, 0x27, 0x26, 0x5a, 0x00, 0x98, 0xb1,
 290         }) != 0 {
 291                 t.FailNow()
 292         }
 293         if bytes.Compare(c.ks[7][:], []byte{
 294                 0x5a, 0x79, 0x25, 0x01, 0x7b, 0x9f, 0xdd, 0x3e,
 295                 0xd7, 0x2a, 0x91, 0xa2, 0x22, 0x86, 0xf9, 0x84,
 296         }) != 0 {
 297                 t.FailNow()
 298         }
 299         if bytes.Compare(c.ks[8][:], []byte{
 300                 0xbb, 0x44, 0xe2, 0x53, 0x78, 0xc7, 0x31, 0x23,
 301                 0xa5, 0xf3, 0x2f, 0x73, 0xcd, 0xb6, 0xe5, 0x17,
 302         }) != 0 {
 303                 t.FailNow()
 304         }
 305         if bytes.Compare(c.ks[9][:], []byte{
 306                 0x72, 0xe9, 0xdd, 0x74, 0x16, 0xbc, 0xf4, 0x5b,
 307                 0x75, 0x5d, 0xba, 0xa8, 0x8e, 0x4a, 0x40, 0x43,
 308         }) != 0 {
 309                 t.FailNow()
 310         }
 311 }
 312
 313 func TestVectorEncrypt(t *testing.T) {
 314         c := NewCipher(key)
 315         dst := make([]byte, BlockSize)
 316         c.Encrypt(dst, pt[:])
 317         if bytes.Compare(dst, ct[:]) != 0 {
 318                 t.FailNow()
 319         }
 320 }
 321
 322 func TestVectorDecrypt(t *testing.T) {
 323         c := NewCipher(key)
 324         dst := make([]byte, BlockSize)
 325         c.Decrypt(dst, ct[:])
 326         if bytes.Compare(dst, pt[:]) != 0 {
 327                 t.FailNow()
 328         }
 329 }