2 * Copyright (C) 2018 vt@altlinux.org. All Rights Reserved.
4 * Contents licensed under the terms of the OpenSSL license
5 * See https://www.openssl.org/source/license.html for details
8 #include "gost_grasshopper_cipher.h"
9 #include "gost_grasshopper_defines.h"
10 #include "gost_grasshopper_math.h"
11 #include "gost_grasshopper_core.h"
12 #include "e_gost_err.h"
14 #include <openssl/evp.h>
15 #include <openssl/rand.h>
16 #include <openssl/err.h>
17 #include <openssl/asn1.h>
20 #define T(e) if (!(e)) {\
21 ERR_print_errors_fp(stderr);\
22 OpenSSLDie(__FILE__, __LINE__, #e);\
25 #define cRED "\033[1;31m"
26 #define cGREEN "\033[1;32m"
27 #define cNORM "\033[m"
28 #define TEST_ASSERT(e) {if ((test = (e))) \
29 printf(cRED "Test FAILED\n" cNORM); \
31 printf(cGREEN "Test passed\n" cNORM);}
38 /* Test key from both GOST R 34.12-2015 and GOST R 34.13-2015. */
39 static const unsigned char K[] = {
40 0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,
41 0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
44 /* Plaintext from GOST R 34.13-2015 A.1.
45 * First 16 bytes is vector (a) from GOST R 34.12-2015 A.1. */
46 static const unsigned char P[] = {
47 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xff,0xee,0xdd,0xcc,0xbb,0xaa,0x99,0x88,
48 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,
49 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,
50 0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,0x11,
52 static const unsigned char E[4][sizeof(P)] = {
53 { /* ECB test vectors from GOST R 34.13-2015 A.1.1 */
54 /* first 16 bytes is vector (b) from GOST R 34.12-2015 A.1 */
55 0x7f,0x67,0x9d,0x90,0xbe,0xbc,0x24,0x30,0x5a,0x46,0x8d,0x42,0xb9,0xd4,0xed,0xcd,
56 0xb4,0x29,0x91,0x2c,0x6e,0x00,0x32,0xf9,0x28,0x54,0x52,0xd7,0x67,0x18,0xd0,0x8b,
57 0xf0,0xca,0x33,0x54,0x9d,0x24,0x7c,0xee,0xf3,0xf5,0xa5,0x31,0x3b,0xd4,0xb1,0x57,
58 0xd0,0xb0,0x9c,0xcd,0xe8,0x30,0xb9,0xeb,0x3a,0x02,0xc4,0xc5,0xaa,0x8a,0xda,0x98,
60 { /* CTR test vectors from GOST R 34.13-2015 A.1.2 */
61 0xf1,0x95,0xd8,0xbe,0xc1,0x0e,0xd1,0xdb,0xd5,0x7b,0x5f,0xa2,0x40,0xbd,0xa1,0xb8,
62 0x85,0xee,0xe7,0x33,0xf6,0xa1,0x3e,0x5d,0xf3,0x3c,0xe4,0xb3,0x3c,0x45,0xde,0xe4,
63 0xa5,0xea,0xe8,0x8b,0xe6,0x35,0x6e,0xd3,0xd5,0xe8,0x77,0xf1,0x35,0x64,0xa3,0xa5,
64 0xcb,0x91,0xfa,0xb1,0xf2,0x0c,0xba,0xb6,0xd1,0xc6,0xd1,0x58,0x20,0xbd,0xba,0x73,
67 static const unsigned char iv_ctr[] = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
68 static const unsigned char *iv[4] = { NULL, iv_ctr, };
70 static void hexdump(const void *ptr, size_t len)
72 const unsigned char *p = ptr;
75 for (i = 0; i < len; i += j) {
76 for (j = 0; j < 16 && i + j < len; j++)
77 printf("%s%02x", j? " " : "\t", p[i + j]);
82 /* Test vectors from GOST R 34.13-2015 A.1 which* includes vectors
83 * from GOST R 34.12-2015 A.1 as first block of ecb mode. */
84 static int test_block(const EVP_CIPHER *type, const char *mode, enum e_mode t)
87 unsigned char c[sizeof(P)];
91 printf("Encryption test from GOST R 34.13-2015 [%s] \n", mode);
93 printf(" p[%zu] =\n", sizeof(P));
94 hexdump(P, sizeof(P));
96 EVP_CIPHER_CTX_init(&ctx);
97 T(EVP_CipherInit_ex(&ctx, type, NULL, K, iv[t], 1));
98 T(EVP_CIPHER_CTX_set_padding(&ctx, 0));
99 memset(c, 0, sizeof(c));
100 T(EVP_CipherUpdate(&ctx, c, &outlen, P, sizeof(P)));
101 T(EVP_CipherFinal_ex(&ctx, c + outlen, &tmplen));
102 EVP_CIPHER_CTX_cleanup(&ctx);
103 printf(" c[%d] =\n", outlen);
106 TEST_ASSERT(outlen != sizeof(P) ||
107 memcmp(c, E[t], sizeof(P)));
110 printf("Decryption test from GOST R 34.13-2015 [%s] \n", mode);
111 EVP_CIPHER_CTX_init(&ctx);
112 T(EVP_CipherInit_ex(&ctx, type, NULL, K, iv[t], 0));
113 T(EVP_CIPHER_CTX_set_padding(&ctx, 0));
114 memset(c, 0, sizeof(c));
115 T(EVP_CipherUpdate(&ctx, c, &outlen, E[t], sizeof(P)));
116 T(EVP_CipherFinal_ex(&ctx, c + outlen, &tmplen));
117 EVP_CIPHER_CTX_cleanup(&ctx);
118 printf(" d[%d] =\n", outlen);
121 TEST_ASSERT(outlen != sizeof(P) ||
122 memcmp(c, P, sizeof(P)));
128 static int test_stream(const EVP_CIPHER *type, const char *mode, enum e_mode t)
133 /* Cycle through all lengths from 1 upto maximum size */
134 printf("Stream encryption test from GOST R 34.13-2015 [%s] \n", mode);
135 for (z = 1; z <= sizeof(P); z++) {
137 unsigned char c[sizeof(P)];
142 EVP_CIPHER_CTX_init(&ctx);
143 EVP_CipherInit_ex(&ctx, type, NULL, K, iv[t], 1);
144 EVP_CIPHER_CTX_set_padding(&ctx, 0);
145 memset(c, 0xff, sizeof(c));
146 for (i = 0; i < sizeof(P); i += z) {
147 if (i + z > sizeof(P))
151 EVP_CipherUpdate(&ctx, c + i, &outlen, P + i, sz);
152 OPENSSL_assert(outlen == sz);
155 EVP_CipherFinal_ex(&ctx, c + outlen, &tmplen);
156 EVP_CIPHER_CTX_cleanup(&ctx);
158 test = outlen != sizeof(P) ||
159 memcmp(c, E[t], sizeof(P));
160 printf("%c", test ? 'E' : '+');
169 static int test_omac()
172 unsigned char mac[] = { 0x33,0x6f,0x4d,0x29,0x60,0x59,0xfb,0xe3 };
173 unsigned char md_value[EVP_MAX_MD_SIZE];
177 printf("OMAC test from GOST R 34.13-2015\n");
178 EVP_MD_CTX_init(&ctx);
179 /* preload cbc cipher for omac set key */
180 EVP_add_cipher(cipher_gost_grasshopper_cbc());
181 T(EVP_DigestInit_ex(&ctx, grasshopper_omac(), NULL));
182 if (EVP_MD_CTX_size(&ctx) != 8) {
183 /* strip const out of EVP_MD_CTX_md() to
184 * overwrite output size, as test vector is 8 bytes */
185 T(EVP_MD_meth_set_result_size((EVP_MD *)EVP_MD_CTX_md(&ctx), 8));
187 T(EVP_MD_meth_get_ctrl(EVP_MD_CTX_md(&ctx))(&ctx, EVP_MD_CTRL_SET_KEY, sizeof(K), (void *)K));
188 T(EVP_DigestUpdate(&ctx, P, sizeof(P)));
189 T(EVP_DigestFinal_ex(&ctx, md_value, &md_len));
190 EVP_MD_CTX_cleanup(&ctx);
191 printf(" MAC[%u] =\n", md_len);
192 hexdump(md_value, md_len);
194 TEST_ASSERT(md_len != sizeof(mac) ||
195 memcmp(mac, md_value, md_len));
200 int main(int argc, char **argv)
204 ret |= test_block(cipher_gost_grasshopper_ecb(), "ecb", E_ECB);
205 ret |= test_block(cipher_gost_grasshopper_ctr(), "ctr", E_CTR);
206 ret |= test_stream(cipher_gost_grasshopper_ctr(), "ctr", E_CTR);
208 * Other modes (ofb, cbc, cfb) is impossible to test to match GOST R
209 * 34.13-2015 test vectors due to these vectors having exceeding IV
210 * length value (m) = 256 bits, while openssl have hardcoded limit
211 * of maximum IV length of 128 bits (EVP_MAX_IV_LENGTH).
212 * Also, current grasshopper code having fixed IV length of 128 bits.