1 // GoGOST -- Pure Go GOST cryptographic functions library
2 // Copyright (C) 2015-2020 Sergey Matveev <stargrave@stargrave.org>
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.
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.
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/>.
25 func TestCFBCryptomanager(t *testing.T) {
27 0x75, 0x71, 0x31, 0x34, 0xB6, 0x0F, 0xEC, 0x45,
28 0xA6, 0x07, 0xBB, 0x83, 0xAA, 0x37, 0x46, 0xAF,
29 0x4F, 0xF9, 0x9D, 0xA6, 0xD1, 0xB5, 0x3B, 0x5B,
30 0x1B, 0x40, 0x2A, 0x1B, 0xAA, 0x03, 0x0D, 0x1B,
32 sbox := &SboxIdGostR341194TestParamSet
34 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88,
35 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0x80, 0x00, 0x00,
38 0x6E, 0xE8, 0x45, 0x86, 0xDD, 0x2B, 0xCA, 0x0C,
39 0xAD, 0x36, 0x16, 0x94, 0x0E, 0x16, 0x42, 0x42,
41 c := NewCipher(key, sbox)
42 iv := []byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}
43 tmp := make([]byte, 16)
44 fe := c.NewCFBEncrypter(iv)
45 fe.XORKeyStream(tmp, pt)
46 if bytes.Compare(tmp, ct) != 0 {
47 t.Fatal("encryption failed")
49 fd := c.NewCFBDecrypter(iv)
50 fd.XORKeyStream(tmp, ct)
51 if bytes.Compare(tmp, pt) != 0 {
52 t.Fatal("decryption failed")
56 func TestCFBRandom(t *testing.T) {
57 f := func(key [KeySize]byte, iv [BlockSize]byte, pt []byte) bool {
61 c := NewCipher(key[:], SboxDefault)
62 ct := make([]byte, len(pt))
63 fe := c.NewCFBEncrypter(iv[:])
64 fe.XORKeyStream(ct, pt)
65 fd := c.NewCFBDecrypter(iv[:])
66 pt2 := make([]byte, len(ct))
67 fd.XORKeyStream(pt2, ct)
68 return bytes.Compare(pt2, pt) == 0
70 if err := quick.Check(f, nil); err != nil {
75 func TestCFBInterface(t *testing.T) {
78 c := NewCipher(key[:], SboxDefault)
79 var _ cipher.Stream = c.NewCFBEncrypter(iv[:])
80 var _ cipher.Stream = c.NewCFBDecrypter(iv[:])