test_grasshopper.c

   1 /*
   2  * Copyright (C) 2018 vt@altlinux.org. All Rights Reserved.
   3  *
   4  * Contents licensed under the terms of the OpenSSL license
   5  * See https://www.openssl.org/source/license.html for details
   6  */
   7
   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"
  13 #include "gost_lcl.h"
  14 #include <openssl/evp.h>
  15 #include <openssl/rand.h>
  16 #include <openssl/err.h>
  17 #include <openssl/asn1.h>
  18 #include <string.h>
  19
  20 #define T(e) if (!(e)) {\
  21         ERR_print_errors_fp(stderr);\
  22         OpenSSLDie(__FILE__, __LINE__, #e);\
  23     }
  24
  25 #define cRED    "\033[1;31m"
  26 #define cDRED   "\033[0;31m"
  27 #define cGREEN  "\033[1;32m"
  28 #define cDGREEN "\033[0;32m"
  29 #define cNORM   "\033[m"
  30 #define TEST_ASSERT(e) {if ((test = (e))) \
  31                  printf(cRED "Test FAILED\n" cNORM); \
  32              else \
  33                  printf(cGREEN "Test passed\n" cNORM);}
  34
  35 /* Test key from both GOST R 34.12-2015 and GOST R 34.13-2015. */
  36 static const unsigned char K[32] = {
  37     0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,
  38     0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
  39 };
  40
  41 /* Plaintext from GOST R 34.13-2015 A.1.
  42  * First 16 bytes is vector (a) from GOST R 34.12-2015 A.1. */
  43 static const unsigned char P[] = {
  44     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xff,0xee,0xdd,0xcc,0xbb,0xaa,0x99,0x88,
  45     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,
  46     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,
  47     0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,0x11,
  48 };
  49 /* Extended plaintext from tc26 acpkm Kuznyechik test vector */
  50 static const unsigned char P_acpkm[] = {
  51     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88,
  52     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,
  53     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,
  54     0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,
  55     0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,
  56     0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33,
  57     0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33,0x44,
  58 };
  59 /* OMAC-ACPKM test vector from R 1323565.1.017-2018 A.4.1 */
  60 static const unsigned char P_omac_acpkm1[] = {
  61     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88,
  62     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,
  63 };
  64 /* OMAC-ACPKM test vector from R 1323565.1.017-2018 A.4.2 */
  65 static const unsigned char P_omac_acpkm2[] = {
  66     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88,
  67     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,
  68     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,
  69     0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,
  70     0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,
  71 };
  72 static const unsigned char E_ecb[] = {
  73     /* ECB test vectors from GOST R 34.13-2015  A.1.1 */
  74     /* first 16 bytes is vector (b) from GOST R 34.12-2015 A.1 */
  75     0x7f,0x67,0x9d,0x90,0xbe,0xbc,0x24,0x30,0x5a,0x46,0x8d,0x42,0xb9,0xd4,0xed,0xcd,
  76     0xb4,0x29,0x91,0x2c,0x6e,0x00,0x32,0xf9,0x28,0x54,0x52,0xd7,0x67,0x18,0xd0,0x8b,
  77     0xf0,0xca,0x33,0x54,0x9d,0x24,0x7c,0xee,0xf3,0xf5,0xa5,0x31,0x3b,0xd4,0xb1,0x57,
  78     0xd0,0xb0,0x9c,0xcd,0xe8,0x30,0xb9,0xeb,0x3a,0x02,0xc4,0xc5,0xaa,0x8a,0xda,0x98,
  79 };
  80 static const unsigned char E_ctr[] = {
  81     /* CTR test vectors from GOST R 34.13-2015  A.1.2 */
  82     0xf1,0x95,0xd8,0xbe,0xc1,0x0e,0xd1,0xdb,0xd5,0x7b,0x5f,0xa2,0x40,0xbd,0xa1,0xb8,
  83     0x85,0xee,0xe7,0x33,0xf6,0xa1,0x3e,0x5d,0xf3,0x3c,0xe4,0xb3,0x3c,0x45,0xde,0xe4,
  84     0xa5,0xea,0xe8,0x8b,0xe6,0x35,0x6e,0xd3,0xd5,0xe8,0x77,0xf1,0x35,0x64,0xa3,0xa5,
  85     0xcb,0x91,0xfa,0xb1,0xf2,0x0c,0xba,0xb6,0xd1,0xc6,0xd1,0x58,0x20,0xbd,0xba,0x73,
  86 };
  87 static const unsigned char E_acpkm[] = {
  88     0xF1,0x95,0xD8,0xBE,0xC1,0x0E,0xD1,0xDB,0xD5,0x7B,0x5F,0xA2,0x40,0xBD,0xA1,0xB8,
  89     0x85,0xEE,0xE7,0x33,0xF6,0xA1,0x3E,0x5D,0xF3,0x3C,0xE4,0xB3,0x3C,0x45,0xDE,0xE4,
  90     0x4B,0xCE,0xEB,0x8F,0x64,0x6F,0x4C,0x55,0x00,0x17,0x06,0x27,0x5E,0x85,0xE8,0x00,
  91     0x58,0x7C,0x4D,0xF5,0x68,0xD0,0x94,0x39,0x3E,0x48,0x34,0xAF,0xD0,0x80,0x50,0x46,
  92     0xCF,0x30,0xF5,0x76,0x86,0xAE,0xEC,0xE1,0x1C,0xFC,0x6C,0x31,0x6B,0x8A,0x89,0x6E,
  93     0xDF,0xFD,0x07,0xEC,0x81,0x36,0x36,0x46,0x0C,0x4F,0x3B,0x74,0x34,0x23,0x16,0x3E,
  94     0x64,0x09,0xA9,0xC2,0x82,0xFA,0xC8,0xD4,0x69,0xD2,0x21,0xE7,0xFB,0xD6,0xDE,0x5D,
  95 };
  96 /* Test vector from R 23565.1.017-2018 A.4.2.
  97  * Key material from ACPKM-Master(K,768,3) for OMAC-ACPKM. */
  98 static const unsigned char E_acpkm_master[] = {
  99     0x0C,0xAB,0xF1,0xF2,0xEF,0xBC,0x4A,0xC1,0x60,0x48,0xDF,0x1A,0x24,0xC6,0x05,0xB2,
 100     0xC0,0xD1,0x67,0x3D,0x75,0x86,0xA8,0xEC,0x0D,0xD4,0x2C,0x45,0xA4,0xF9,0x5B,0xAE,
 101     0x0F,0x2E,0x26,0x17,0xE4,0x71,0x48,0x68,0x0F,0xC3,0xE6,0x17,0x8D,0xF2,0xC1,0x37,
 102     0xC9,0xDD,0xA8,0x9C,0xFF,0xA4,0x91,0xFE,0xAD,0xD9,0xB3,0xEA,0xB7,0x03,0xBB,0x31,
 103     0xBC,0x7E,0x92,0x7F,0x04,0x94,0x72,0x9F,0x51,0xB4,0x9D,0x3D,0xF9,0xC9,0x46,0x08,
 104     0x00,0xFB,0xBC,0xF5,0xED,0xEE,0x61,0x0E,0xA0,0x2F,0x01,0x09,0x3C,0x7B,0xC7,0x42,
 105     0xD7,0xD6,0x27,0x15,0x01,0xB1,0x77,0x77,0x52,0x63,0xC2,0xA3,0x49,0x5A,0x83,0x18,
 106     0xA8,0x1C,0x79,0xA0,0x4F,0x29,0x66,0x0E,0xA3,0xFD,0xA8,0x74,0xC6,0x30,0x79,0x9E,
 107     0x14,0x2C,0x57,0x79,0x14,0xFE,0xA9,0x0D,0x3B,0xC2,0x50,0x2E,0x83,0x36,0x85,0xD9,
 108 };
 109 static const unsigned char P_acpkm_master[sizeof(E_acpkm_master)] = { 0 };
 110 /*
 111  * Other modes (ofb, cbc, cfb) is impossible to test to match GOST R
 112  * 34.13-2015 test vectors exactly, due to these vectors having exceeding
 113  * IV length value (m) = 256 bits, while openssl have hard-coded limit
 114  * of maximum IV length of 128 bits (EVP_MAX_IV_LENGTH).
 115  * Also, current grasshopper code having fixed IV length of 128 bits.
 116  *
 117  * Thus, new test vectors are generated with truncated 128-bit IV using
 118  * canonical GOST implementation from TC26.
 119  */
 120 static const unsigned char E_ofb[] = {
 121     /* OFB test vector generated from canonical implementation */
 122     0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95,
 123     0x77,0x91,0x46,0xdb,0x2d,0x93,0xa9,0x4e,0xd9,0x3c,0xf6,0x8b,0x32,0x39,0x7f,0x19,
 124     0xe9,0x3c,0x9e,0x57,0x44,0x1d,0x87,0x05,0x45,0xf2,0x40,0x36,0xa5,0x8c,0xee,0xa3,
 125     0xcf,0x3f,0x00,0x61,0xd5,0x64,0x23,0x54,0x5b,0x96,0x0d,0x86,0x4c,0xc8,0x68,0xda,
 126 };
 127 static const unsigned char E_cbc[] = {
 128     /* CBC test vector generated from canonical implementation */
 129     0x68,0x99,0x72,0xd4,0xa0,0x85,0xfa,0x4d,0x90,0xe5,0x2e,0x3d,0x6d,0x7d,0xcc,0x27,
 130     0xab,0xf1,0x70,0xb2,0xb2,0x26,0xc3,0x01,0x0c,0xcf,0xa1,0x36,0xd6,0x59,0xcd,0xaa,
 131     0xca,0x71,0x92,0x72,0xab,0x1d,0x43,0x8e,0x15,0x50,0x7d,0x52,0x1e,0xcd,0x55,0x22,
 132     0xe0,0x11,0x08,0xff,0x8d,0x9d,0x3a,0x6d,0x8c,0xa2,0xa5,0x33,0xfa,0x61,0x4e,0x71,
 133 };
 134 static const unsigned char E_cfb[] = {
 135     /* CFB test vector generated from canonical implementation */
 136     0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95,
 137     0x68,0xc1,0xb9,0x9c,0x4d,0xf5,0x9c,0xc7,0x95,0x1e,0x37,0x39,0xb5,0xb3,0xcd,0xbf,
 138     0x07,0x3f,0x4d,0xd2,0xd6,0xde,0xb3,0xcf,0xb0,0x26,0x54,0x5f,0x7a,0xf1,0xd8,0xe8,
 139     0xe1,0xc8,0x52,0xe9,0xa8,0x56,0x71,0x62,0xdb,0xb5,0xda,0x7f,0x66,0xde,0xa9,0x26,
 140 };
 141
 142 static const unsigned char iv_ctr[]     = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0,
 143                                             0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
 144 /* Truncated to 128-bits IV from GOST examples. */
 145 static const unsigned char iv_128bit[]  = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0,
 146                                             0xa1,0xb2,0xc3,0xd4,0xe5,0xf0,0x01,0x12 };
 147 /* Universal IV for ACPKM-Master. */
 148 static const unsigned char iv_acpkm_m[] = { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 149                                             0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
 150 static const unsigned char MAC_omac[] = { 0x33,0x6f,0x4d,0x29,0x60,0x59,0xfb,0xe3 };
 151 static const unsigned char MAC_omac_acpkm1[] = {
 152     0xB5,0x36,0x7F,0x47,0xB6,0x2B,0x99,0x5E,0xEB,0x2A,0x64,0x8C,0x58,0x43,0x14,0x5E,
 153 };
 154 static const unsigned char MAC_omac_acpkm2[] = {
 155     0xFB,0xB8,0xDC,0xEE,0x45,0xBE,0xA6,0x7C,0x35,0xF5,0x8C,0x57,0x00,0x89,0x8E,0x5D,
 156 };
 157
 158 struct testcase {
 159     const char *name;
 160     const EVP_CIPHER *(*type)(void);
 161     int stream;
 162     const unsigned char *plaintext;
 163     const unsigned char *expected;
 164     size_t size;
 165     const unsigned char *iv;
 166     size_t iv_size;
 167     int acpkm;
 168 };
 169 static struct testcase testcases[] = {
 170     { "ecb", cipher_gost_grasshopper_ecb, 0, P,  E_ecb,  sizeof(P),  NULL,       0, 0 },
 171     { "ctr", cipher_gost_grasshopper_ctr, 1, P,  E_ctr,  sizeof(P),  iv_ctr,     sizeof(iv_ctr), 0 },
 172     { "ctr-no-acpkm", cipher_gost_grasshopper_ctracpkm, 1, P,   E_ctr,   sizeof(P),       iv_ctr, sizeof(iv_ctr), 0 },
 173     { "ctracpkm", cipher_gost_grasshopper_ctracpkm, 1, P_acpkm, E_acpkm, sizeof(P_acpkm), iv_ctr, sizeof(iv_ctr), 256 / 8 },
 174     { "acpkm-Master", cipher_gost_grasshopper_ctracpkm, 0, P_acpkm_master, E_acpkm_master, sizeof(P_acpkm_master),
 175         iv_acpkm_m, sizeof(iv_acpkm_m), 768 / 8 },
 176     { "ofb", cipher_gost_grasshopper_ofb, 1, P,  E_ofb,  sizeof(P),  iv_128bit,  sizeof(iv_128bit), 0 },
 177     { "cbc", cipher_gost_grasshopper_cbc, 0, P,  E_cbc,  sizeof(P),  iv_128bit,  sizeof(iv_128bit), 0 },
 178     { "cfb", cipher_gost_grasshopper_cfb, 0, P,  E_cfb,  sizeof(P),  iv_128bit,  sizeof(iv_128bit), 0 },
 179     NULL
 180 };
 181
 182 static void hexdump(const void *ptr, size_t len)
 183 {
 184     const unsigned char *p = ptr;
 185     size_t i, j;
 186
 187     for (i = 0; i < len; i += j) {
 188         for (j = 0; j < 16 && i + j < len; j++)
 189             printf("%s%02x", j? "" : " ", p[i + j]);
 190     }
 191     printf("\n");
 192 }
 193
 194 static int test_block(const EVP_CIPHER *type, const char *name,
 195     const unsigned char *pt, const unsigned char *exp, size_t size,
 196     const unsigned char *iv, size_t iv_size, int acpkm)
 197 {
 198     EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
 199     const char *standard = acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015";
 200     unsigned char c[size];
 201     int outlen, tmplen;
 202     int ret = 0, test;
 203
 204     OPENSSL_assert(ctx);
 205     printf("Encryption test from %s [%s] \n", standard, name);
 206     /* test with single big chunk */
 207     EVP_CIPHER_CTX_init(ctx);
 208     T(EVP_CipherInit_ex(ctx, type, NULL, K, iv, 1));
 209     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 210     memset(c, 0, sizeof(c));
 211     if (acpkm)
 212         T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 213     T(EVP_CipherUpdate(ctx, c, &outlen, pt, size));
 214     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 215     EVP_CIPHER_CTX_cleanup(ctx);
 216     printf("  c[%d] = ", outlen);
 217     hexdump(c, outlen);
 218
 219     TEST_ASSERT(outlen != size || memcmp(c, exp, size));
 220     ret |= test;
 221
 222     /* test with small chunks of block size */
 223     printf("Chunked encryption test from %s [%s] \n", standard, name);
 224     int blocks = size / GRASSHOPPER_BLOCK_SIZE;
 225     int z;
 226     EVP_CIPHER_CTX_init(ctx);
 227     T(EVP_CipherInit_ex(ctx, type, NULL, K, iv, 1));
 228     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 229     memset(c, 0, sizeof(c));
 230     if (acpkm)
 231         T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 232     for (z = 0; z < blocks; z++) {
 233         int offset = z * GRASSHOPPER_BLOCK_SIZE;
 234         int sz = GRASSHOPPER_BLOCK_SIZE;
 235
 236         T(EVP_CipherUpdate(ctx, c + offset, &outlen, pt + offset, sz));
 237     }
 238     outlen = z * GRASSHOPPER_BLOCK_SIZE;
 239     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 240     EVP_CIPHER_CTX_cleanup(ctx);
 241     printf("  c[%d] = ", outlen);
 242     hexdump(c, outlen);
 243
 244     TEST_ASSERT(outlen != size || memcmp(c, exp, size));
 245     ret |= test;
 246
 247     /* test with single big chunk */
 248     printf("Decryption test from %s [%s] \n", standard, name);
 249     EVP_CIPHER_CTX_init(ctx);
 250     T(EVP_CipherInit_ex(ctx, type, NULL, K, iv, 0));
 251     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 252     memset(c, 0, sizeof(c));
 253     if (acpkm)
 254         T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 255     T(EVP_CipherUpdate(ctx, c, &outlen, exp, size));
 256     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 257     EVP_CIPHER_CTX_cleanup(ctx);
 258     EVP_CIPHER_CTX_free(ctx);
 259     printf("  d[%d] = ", outlen);
 260     hexdump(c, outlen);
 261
 262     TEST_ASSERT(outlen != size || memcmp(c, pt, size));
 263     ret |= test;
 264
 265     return ret;
 266 }
 267
 268 static int test_stream(const EVP_CIPHER *type, const char *name,
 269     const unsigned char *pt, const unsigned char *exp, size_t size,
 270     const unsigned char *iv, size_t iv_size, int acpkm)
 271 {
 272     EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
 273     const char *standard = acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015";
 274     int ret = 0, test;
 275     int z;
 276
 277     OPENSSL_assert(ctx);
 278     /* Cycle through all lengths from 1 upto maximum size */
 279     printf("Stream encryption test from %s [%s] \n", standard, name);
 280     for (z = 1; z <= size; z++) {
 281         unsigned char c[size];
 282         int outlen, tmplen;
 283         int sz = 0;
 284         int i;
 285
 286         EVP_CIPHER_CTX_init(ctx);
 287         EVP_CipherInit_ex(ctx, type, NULL, K, iv, 1);
 288         EVP_CIPHER_CTX_set_padding(ctx, 0);
 289         memset(c, 0xff, sizeof(c));
 290         if (acpkm)
 291             T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 292         for (i = 0; i < size; i += z) {
 293             if (i + z > size)
 294                 sz = size - i;
 295             else
 296                 sz = z;
 297             EVP_CipherUpdate(ctx, c + i, &outlen, pt + i, sz);
 298             OPENSSL_assert(outlen == sz);
 299         }
 300         outlen = i - z + sz;
 301         EVP_CipherFinal_ex(ctx, c + outlen, &tmplen);
 302         EVP_CIPHER_CTX_cleanup(ctx);
 303
 304         test = outlen != size || memcmp(c, exp, size);
 305         printf("%c", test ? 'E' : '+');
 306         ret |= test;
 307     }
 308     printf("\n");
 309     TEST_ASSERT(ret);
 310     EVP_CIPHER_CTX_free(ctx);
 311
 312     return ret;
 313 }
 314
 315 static int test_mac(const char *name, const char *from,
 316     const EVP_MD *type, int acpkm, int acpkm_t,
 317     const unsigned char *pt, size_t pt_size,
 318     const unsigned char *mac, size_t mac_size)
 319 {
 320     EVP_MD_CTX *ctx = EVP_MD_CTX_new();
 321     unsigned char md_value[EVP_MAX_MD_SIZE];
 322     unsigned int md_len;
 323     int test;
 324
 325     OPENSSL_assert(ctx);
 326     printf("%s test from %s\n", name, from);
 327     EVP_MD_CTX_init(ctx);
 328     T(EVP_DigestInit_ex(ctx, type, NULL));
 329     if (EVP_MD_CTX_size(ctx) != mac_size) {
 330         /* strip const out of EVP_MD_CTX_md() to
 331          * overwrite output size, as test vector is 8 bytes */
 332         printf("Resize result size from %d to %zu\n", EVP_MD_CTX_size(ctx), mac_size);
 333         T(EVP_MD_meth_set_result_size((EVP_MD *)EVP_MD_CTX_md(ctx), mac_size));
 334     }
 335     T(EVP_MD_meth_get_ctrl(EVP_MD_CTX_md(ctx))(ctx, EVP_MD_CTRL_SET_KEY, sizeof(K), (void *)K));
 336     if (acpkm)
 337         T(EVP_MD_meth_get_ctrl(EVP_MD_CTX_md(ctx))(ctx,
 338                 EVP_CTRL_KEY_MESH, acpkm, acpkm_t ? &acpkm_t : NULL));
 339     T(EVP_DigestUpdate(ctx, pt, pt_size));
 340     T(EVP_DigestFinal_ex(ctx, md_value, &md_len));
 341     EVP_MD_CTX_free(ctx);
 342     printf("  MAC[%u] = ", md_len);
 343     hexdump(md_value, md_len);
 344
 345     TEST_ASSERT(md_len != mac_size ||
 346         memcmp(mac, md_value, md_len));
 347
 348     return test;
 349 }
 350
 351 int main(int argc, char **argv)
 352 {
 353     int ret = 0;
 354     const struct testcase *t;
 355
 356     for (t = testcases; t->name; t++) {
 357         ret |= test_block(t->type(), t->name,
 358             t->plaintext, t->expected, t->size,
 359             t->iv, t->iv_size, t->acpkm);
 360         if (t->stream)
 361             ret |= test_stream(t->type(), t->name,
 362                 t->plaintext, t->expected, t->size,
 363                 t->iv, t->iv_size, t->acpkm);
 364     }
 365
 366     /* preload cbc cipher for omac set key */
 367     EVP_add_cipher(cipher_gost_grasshopper_cbc());
 368
 369     ret |= test_mac("OMAC", "GOST R 34.13-2015", grasshopper_omac(), 0, 0,
 370         P, sizeof(P), MAC_omac, sizeof(MAC_omac));
 371     ret |= test_mac("OMAC-ACPKM", "R 1323565.1.017-2018 A.4.1",
 372         grasshopper_omac_acpkm(), 32, 768 / 8,
 373         P_omac_acpkm1, sizeof(P_omac_acpkm1),
 374         MAC_omac_acpkm1, sizeof(MAC_omac_acpkm1));
 375     ret |= test_mac("OMAC-ACPKM", "R 1323565.1.017-2018 A.4.2",
 376         grasshopper_omac_acpkm(), 32, 768 / 8,
 377         P_omac_acpkm2, sizeof(P_omac_acpkm2),
 378         MAC_omac_acpkm2, sizeof(MAC_omac_acpkm2));
 379
 380     if (ret)
 381         printf(cDRED "= Some tests FAILED!\n" cNORM);
 382     else
 383         printf(cDGREEN "= All tests passed!\n" cNORM);
 384     return ret;
 385 }