test_ciphers.c

   1 /*
   2  * Copyright (C) 2018,2020 Vitaly Chikunov <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 <openssl/engine.h>
   9 #include <openssl/evp.h>
  10 #include <openssl/rand.h>
  11 #include <openssl/err.h>
  12 #include <openssl/asn1.h>
  13 #include <string.h>
  14
  15 #define T(e) ({ \
  16     if (!(e)) {\
  17         ERR_print_errors_fp(stderr);\
  18         OpenSSLDie(__FILE__, __LINE__, #e);\
  19     } \
  20 })
  21
  22 #define cRED    "\033[1;31m"
  23 #define cDRED   "\033[0;31m"
  24 #define cGREEN  "\033[1;32m"
  25 #define cDGREEN "\033[0;32m"
  26 #define cBLUE   "\033[1;34m"
  27 #define cDBLUE  "\033[0;34m"
  28 #define cNORM   "\033[m"
  29 #define TEST_ASSERT(e) {if ((test = (e))) \
  30                  printf(cRED "Test FAILED\n" cNORM); \
  31              else \
  32                  printf(cGREEN "Test passed\n" cNORM);}
  33
  34 /* Pragma to allow commenting out some tests. */
  35 #pragma GCC diagnostic ignored "-Wunused-const-variable"
  36
  37 /*
  38  * Test keys from both GOST R 34.12-2015 and GOST R 34.13-2015,
  39  * for 128-bit cipher (A.1).
  40  */
  41 static const unsigned char K[32] = {
  42     0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,
  43     0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
  44 };
  45
  46 /*
  47  * Key for 64-bit cipher (A.2).
  48  */
  49 static const unsigned char Km[32] = {
  50     0xff,0xee,0xdd,0xcc,0xbb,0xaa,0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22,0x11,0x00,
  51     0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff,
  52 };
  53
  54 /*
  55  * Plaintext from GOST R 34.13-2015 A.1.
  56  * First 16 bytes is vector (a) from GOST R 34.12-2015 A.1.
  57  */
  58 static const unsigned char P[] = {
  59     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xff,0xee,0xdd,0xcc,0xbb,0xaa,0x99,0x88,
  60     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,
  61     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,
  62     0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,0x11,
  63 };
  64
  65 /* Plaintext for 64-bit cipher (A.2) */
  66 static const unsigned char Pm[] = {
  67     0x92,0xde,0xf0,0x6b,0x3c,0x13,0x0a,0x59,0xdb,0x54,0xc7,0x04,0xf8,0x18,0x9d,0x20,
  68     0x4a,0x98,0xfb,0x2e,0x67,0xa8,0x02,0x4c,0x89,0x12,0x40,0x9b,0x17,0xb5,0x7e,0x41,
  69 };
  70
  71 /* Extended plaintext from tc26 acpkm Kuznyechik test vector */
  72 static const unsigned char P_acpkm[] = {
  73     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88,
  74     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,
  75     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,
  76     0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,
  77     0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,
  78     0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33,
  79     0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33,0x44,
  80 };
  81 static const unsigned char E_ecb[] = {
  82     /* ECB test vectors from GOST R 34.13-2015  A.1.1 */
  83     /* first 16 bytes is vector (b) from GOST R 34.12-2015 A.1 */
  84     0x7f,0x67,0x9d,0x90,0xbe,0xbc,0x24,0x30,0x5a,0x46,0x8d,0x42,0xb9,0xd4,0xed,0xcd,
  85     0xb4,0x29,0x91,0x2c,0x6e,0x00,0x32,0xf9,0x28,0x54,0x52,0xd7,0x67,0x18,0xd0,0x8b,
  86     0xf0,0xca,0x33,0x54,0x9d,0x24,0x7c,0xee,0xf3,0xf5,0xa5,0x31,0x3b,0xd4,0xb1,0x57,
  87     0xd0,0xb0,0x9c,0xcd,0xe8,0x30,0xb9,0xeb,0x3a,0x02,0xc4,0xc5,0xaa,0x8a,0xda,0x98,
  88 };
  89 static const unsigned char E_ctr[] = {
  90     /* CTR test vectors from GOST R 34.13-2015  A.1.2 */
  91     0xf1,0x95,0xd8,0xbe,0xc1,0x0e,0xd1,0xdb,0xd5,0x7b,0x5f,0xa2,0x40,0xbd,0xa1,0xb8,
  92     0x85,0xee,0xe7,0x33,0xf6,0xa1,0x3e,0x5d,0xf3,0x3c,0xe4,0xb3,0x3c,0x45,0xde,0xe4,
  93     0xa5,0xea,0xe8,0x8b,0xe6,0x35,0x6e,0xd3,0xd5,0xe8,0x77,0xf1,0x35,0x64,0xa3,0xa5,
  94     0xcb,0x91,0xfa,0xb1,0xf2,0x0c,0xba,0xb6,0xd1,0xc6,0xd1,0x58,0x20,0xbd,0xba,0x73,
  95 };
  96 static const unsigned char Em_ctr[] = {
  97     /* CTR test vectors from GOST R 34.13-2015  A.2.2 */
  98     0x4e,0x98,0x11,0x0c,0x97,0xb7,0xb9,0x3c,0x3e,0x25,0x0d,0x93,0xd6,0xe8,0x5d,0x69,
  99     0x13,0x6d,0x86,0x88,0x07,0xb2,0xdb,0xef,0x56,0x8e,0xb6,0x80,0xab,0x52,0xa1,0x2d,
 100 };
 101 static const unsigned char E_acpkm[] = {
 102     0xF1,0x95,0xD8,0xBE,0xC1,0x0E,0xD1,0xDB,0xD5,0x7B,0x5F,0xA2,0x40,0xBD,0xA1,0xB8,
 103     0x85,0xEE,0xE7,0x33,0xF6,0xA1,0x3E,0x5D,0xF3,0x3C,0xE4,0xB3,0x3C,0x45,0xDE,0xE4,
 104     0x4B,0xCE,0xEB,0x8F,0x64,0x6F,0x4C,0x55,0x00,0x17,0x06,0x27,0x5E,0x85,0xE8,0x00,
 105     0x58,0x7C,0x4D,0xF5,0x68,0xD0,0x94,0x39,0x3E,0x48,0x34,0xAF,0xD0,0x80,0x50,0x46,
 106     0xCF,0x30,0xF5,0x76,0x86,0xAE,0xEC,0xE1,0x1C,0xFC,0x6C,0x31,0x6B,0x8A,0x89,0x6E,
 107     0xDF,0xFD,0x07,0xEC,0x81,0x36,0x36,0x46,0x0C,0x4F,0x3B,0x74,0x34,0x23,0x16,0x3E,
 108     0x64,0x09,0xA9,0xC2,0x82,0xFA,0xC8,0xD4,0x69,0xD2,0x21,0xE7,0xFB,0xD6,0xDE,0x5D,
 109 };
 110 /* Test vector from R 23565.1.017-2018 A.4.2.
 111  * Key material from ACPKM-Master(K,768,3) for OMAC-ACPKM. */
 112 static const unsigned char E_acpkm_master[] = {
 113     0x0C,0xAB,0xF1,0xF2,0xEF,0xBC,0x4A,0xC1,0x60,0x48,0xDF,0x1A,0x24,0xC6,0x05,0xB2,
 114     0xC0,0xD1,0x67,0x3D,0x75,0x86,0xA8,0xEC,0x0D,0xD4,0x2C,0x45,0xA4,0xF9,0x5B,0xAE,
 115     0x0F,0x2E,0x26,0x17,0xE4,0x71,0x48,0x68,0x0F,0xC3,0xE6,0x17,0x8D,0xF2,0xC1,0x37,
 116     0xC9,0xDD,0xA8,0x9C,0xFF,0xA4,0x91,0xFE,0xAD,0xD9,0xB3,0xEA,0xB7,0x03,0xBB,0x31,
 117     0xBC,0x7E,0x92,0x7F,0x04,0x94,0x72,0x9F,0x51,0xB4,0x9D,0x3D,0xF9,0xC9,0x46,0x08,
 118     0x00,0xFB,0xBC,0xF5,0xED,0xEE,0x61,0x0E,0xA0,0x2F,0x01,0x09,0x3C,0x7B,0xC7,0x42,
 119     0xD7,0xD6,0x27,0x15,0x01,0xB1,0x77,0x77,0x52,0x63,0xC2,0xA3,0x49,0x5A,0x83,0x18,
 120     0xA8,0x1C,0x79,0xA0,0x4F,0x29,0x66,0x0E,0xA3,0xFD,0xA8,0x74,0xC6,0x30,0x79,0x9E,
 121     0x14,0x2C,0x57,0x79,0x14,0xFE,0xA9,0x0D,0x3B,0xC2,0x50,0x2E,0x83,0x36,0x85,0xD9,
 122 };
 123 static const unsigned char P_acpkm_master[sizeof(E_acpkm_master)] = { 0 };
 124 /*
 125  * Other modes (ofb, cbc, cfb) is impossible to test to match GOST R
 126  * 34.13-2015 test vectors exactly, due to these vectors having exceeding
 127  * IV length value (m) = 256 bits, while openssl have hard-coded limit
 128  * of maximum IV length of 128 bits (EVP_MAX_IV_LENGTH).
 129  * Also, current grasshopper code having fixed IV length of 128 bits.
 130  *
 131  * Thus, new test vectors are generated with truncated 128-bit IV using
 132  * canonical GOST implementation from TC26.
 133  */
 134 static const unsigned char E_ofb[] = {
 135     /* OFB test vector generated from canonical implementation */
 136     0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95,
 137     0x77,0x91,0x46,0xdb,0x2d,0x93,0xa9,0x4e,0xd9,0x3c,0xf6,0x8b,0x32,0x39,0x7f,0x19,
 138     0xe9,0x3c,0x9e,0x57,0x44,0x1d,0x87,0x05,0x45,0xf2,0x40,0x36,0xa5,0x8c,0xee,0xa3,
 139     0xcf,0x3f,0x00,0x61,0xd5,0x64,0x23,0x54,0x5b,0x96,0x0d,0x86,0x4c,0xc8,0x68,0xda,
 140 };
 141 static const unsigned char E_cbc[] = {
 142     /* CBC test vector generated from canonical implementation */
 143     0x68,0x99,0x72,0xd4,0xa0,0x85,0xfa,0x4d,0x90,0xe5,0x2e,0x3d,0x6d,0x7d,0xcc,0x27,
 144     0xab,0xf1,0x70,0xb2,0xb2,0x26,0xc3,0x01,0x0c,0xcf,0xa1,0x36,0xd6,0x59,0xcd,0xaa,
 145     0xca,0x71,0x92,0x72,0xab,0x1d,0x43,0x8e,0x15,0x50,0x7d,0x52,0x1e,0xcd,0x55,0x22,
 146     0xe0,0x11,0x08,0xff,0x8d,0x9d,0x3a,0x6d,0x8c,0xa2,0xa5,0x33,0xfa,0x61,0x4e,0x71,
 147 };
 148 static const unsigned char E_cfb[] = {
 149     /* CFB test vector generated from canonical implementation */
 150     0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95,
 151     0x68,0xc1,0xb9,0x9c,0x4d,0xf5,0x9c,0xc7,0x95,0x1e,0x37,0x39,0xb5,0xb3,0xcd,0xbf,
 152     0x07,0x3f,0x4d,0xd2,0xd6,0xde,0xb3,0xcf,0xb0,0x26,0x54,0x5f,0x7a,0xf1,0xd8,0xe8,
 153     0xe1,0xc8,0x52,0xe9,0xa8,0x56,0x71,0x62,0xdb,0xb5,0xda,0x7f,0x66,0xde,0xa9,0x26,
 154 };
 155 static const unsigned char Em_cbc[] = {
 156     /* 28147-89 CBC test vector generated from canonical implementation */
 157     0x96,0xd1,0xb0,0x5e,0xea,0x68,0x39,0x19,0xf3,0x96,0xb7,0x8c,0x1d,0x47,0xbb,0x61,
 158     0x61,0x83,0xe2,0xcc,0xa9,0x76,0xa4,0xba,0xbe,0x9c,0xe8,0x7d,0x6f,0xa7,0x3c,0xf2,
 159 };
 160
 161 /* IV is half CNT size. */
 162 static const unsigned char iv_ctr[]     = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0 };
 163 /* Third of IV from GOST R 34.13-2015 А.2.4 (Impossible to use full 192-bit IV.) */
 164 static const unsigned char iv_cbc[]     = { 0x12,0x34,0x56,0x78,0x90,0xab,0xcd,0xef };
 165 /* Truncated to 128-bits IV from GOST examples. */
 166 static const unsigned char iv_128bit[]  = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0,
 167                                             0xa1,0xb2,0xc3,0xd4,0xe5,0xf0,0x01,0x12 };
 168 /* Universal IV for ACPKM-Master. */
 169 static const unsigned char iv_acpkm_m[] = { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff };
 170
 171 static struct testcase {
 172     int nid;
 173     int block; /* Actual underlying block size (bytes). */
 174     int stream; /* Stream cipher. */
 175     const unsigned char *plaintext;
 176     const unsigned char *key;
 177     const unsigned char *expected;
 178     size_t size;
 179     const unsigned char *iv;
 180     size_t iv_size;
 181     int acpkm;
 182 } testcases[] = {
 183     {
 184         .nid = NID_grasshopper_ecb,
 185         .block = 16,
 186         .plaintext = P,
 187         .key = K,
 188         .expected = E_ecb,
 189         .size = sizeof(P),
 190     },
 191     {
 192         .nid = NID_grasshopper_ctr,
 193         .block = 16,
 194         .stream = 1,
 195         .plaintext = P,
 196         .key = K,
 197         .expected = E_ctr,
 198         .size = sizeof(P),
 199         .iv = iv_ctr,
 200         .iv_size = sizeof(iv_ctr),
 201     },
 202     {
 203         .nid = NID_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm,
 204         .block = 16,
 205         .stream = 1,
 206         .plaintext = P,
 207         .key = K,
 208         .expected = E_ctr,
 209         .size = sizeof(P),
 210         .iv = iv_ctr,
 211         .iv_size = sizeof(iv_ctr),
 212         /* no acpkm works same as ctr */
 213     },
 214     {
 215         .nid = NID_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm,
 216         .block = 16,
 217         .stream = 1,
 218         .plaintext = P_acpkm,
 219         .key = K,
 220         .expected = E_acpkm,
 221         .size = sizeof(P_acpkm),
 222         .iv = iv_ctr,
 223         .iv_size = sizeof(iv_ctr),
 224         .acpkm = 256 / 8,
 225     },
 226     {
 227         .nid = NID_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm,
 228         .block = 16,
 229         .plaintext = P_acpkm_master,
 230         .key = K,
 231         .expected = E_acpkm_master,
 232         .size = sizeof(P_acpkm_master),
 233         .iv = iv_acpkm_m,
 234         .iv_size = sizeof(iv_acpkm_m),
 235         .acpkm = 768 / 8
 236     },
 237     {
 238         .nid = NID_grasshopper_ofb,
 239         .block = 16,
 240         .stream = 1,
 241         .plaintext = P,
 242         .key = K,
 243         .expected = E_ofb,
 244         .size = sizeof(P),
 245         .iv = iv_128bit,
 246         .iv_size = sizeof(iv_128bit),
 247     },
 248     {
 249         .nid = NID_grasshopper_cbc,
 250         .block = 16,
 251         .plaintext = P,
 252         .key = K,
 253         .expected = E_cbc,
 254         .size = sizeof(P),
 255         .iv = iv_128bit,
 256         .iv_size = sizeof(iv_128bit),
 257     },
 258     {
 259         .nid = NID_grasshopper_cfb,
 260         .block = 16,
 261         .plaintext = P,
 262         .key = K,
 263         .expected = E_cfb,
 264         .size = sizeof(P),
 265         .iv = iv_128bit,
 266         .iv_size = sizeof(iv_128bit),
 267     },
 268     {
 269         .nid = NID_magma_ctr,
 270         .block = 8,
 271         .plaintext = Pm,
 272         .key = Km,
 273         .expected = Em_ctr,
 274         .size = sizeof(Pm),
 275         .iv = iv_ctr,
 276         .iv_size = sizeof(iv_ctr) / 2,
 277     },
 278 #if 0
 279     {
 280         .nid = NID_magma_cbc,
 281         .block = 8,
 282         .plaintext = Pm,
 283         .key = Km,
 284         .expected = Em_cbc,
 285         .size = sizeof(Pm),
 286         .iv = iv_cbc,
 287         .iv_size = sizeof(iv_cbc),
 288     },
 289 #endif
 290     { 0 }
 291 };
 292
 293 static void hexdump(const void *ptr, size_t len)
 294 {
 295     const unsigned char *p = ptr;
 296     size_t i, j;
 297
 298     for (i = 0; i < len; i += j) {
 299         for (j = 0; j < 16 && i + j < len; j++)
 300             printf("%s%02x", j? "" : " ", p[i + j]);
 301     }
 302     printf("\n");
 303 }
 304
 305 static int test_block(const EVP_CIPHER *type, const char *name, int block_size,
 306     const unsigned char *pt, const unsigned char *key, const unsigned char *exp,
 307     size_t size, const unsigned char *iv, size_t iv_size, int acpkm,
 308     int inplace)
 309 {
 310     EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
 311     const char *standard = acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015";
 312     unsigned char c[size];
 313     int outlen, tmplen;
 314     int ret = 0, test;
 315
 316     OPENSSL_assert(ctx);
 317     printf("Encryption test from %s [%s] %s: ", standard, name,
 318         inplace ? "in-place" : "out-of-place");
 319
 320     T(EVP_CIPHER_iv_length(type) == iv_size);
 321
 322     if (EVP_CIPHER_block_size(type) == 1) {
 323         /* Cannot test block size, but can report it's stream cipher. */
 324         printf("stream: ");
 325     } else
 326         T(EVP_CIPHER_block_size(type) == block_size);
 327
 328     /* test with single big chunk */
 329     EVP_CIPHER_CTX_init(ctx);
 330     T(EVP_CipherInit_ex(ctx, type, NULL, key, iv, 1));
 331     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 332     if (inplace)
 333         memcpy(c, pt, size);
 334     else
 335         memset(c, 0, sizeof(c));
 336     if (acpkm)
 337         T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 338     T(EVP_CipherUpdate(ctx, c, &outlen, inplace? c : pt, size));
 339     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 340     EVP_CIPHER_CTX_cleanup(ctx);
 341
 342     TEST_ASSERT(outlen != size || memcmp(c, exp, size));
 343     if (test) {
 344         printf("  c[%d] = ", outlen);
 345         hexdump(c, outlen);
 346     }
 347     ret |= test;
 348
 349     /* test with small chunks of block size */
 350     printf("Chunked encryption test from %s [%s] %s: ", standard, name,
 351         inplace ? "in-place" : "out-of-place");
 352     int blocks = size / block_size;
 353     int z;
 354     EVP_CIPHER_CTX_init(ctx);
 355     T(EVP_CipherInit_ex(ctx, type, NULL, key, iv, 1));
 356     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 357     if (inplace)
 358         memcpy(c, pt, size);
 359     else
 360         memset(c, 0, sizeof(c));
 361     if (acpkm)
 362         T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 363     for (z = 0; z < blocks; z++) {
 364         int offset = z * block_size;
 365         int sz = block_size;
 366
 367         T(EVP_CipherUpdate(ctx, c + offset, &outlen, (inplace ? c : pt) + offset, sz));
 368     }
 369     outlen = z * block_size;
 370     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 371     EVP_CIPHER_CTX_cleanup(ctx);
 372
 373     TEST_ASSERT(outlen != size || memcmp(c, exp, size));
 374     if (test) {
 375         printf("  c[%d] = ", outlen);
 376         hexdump(c, outlen);
 377     }
 378     ret |= test;
 379
 380     /* test with single big chunk */
 381     printf("Decryption test from %s [%s] %s: ", standard, name,
 382         inplace ? "in-place" : "out-of-place");
 383     EVP_CIPHER_CTX_init(ctx);
 384     T(EVP_CipherInit_ex(ctx, type, NULL, key, iv, 0));
 385     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 386     if (inplace)
 387         memcpy(c, exp, size);
 388     else
 389         memset(c, 0, sizeof(c));
 390     if (acpkm)
 391         T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 392     T(EVP_CipherUpdate(ctx, c, &outlen, inplace ? c : exp, size));
 393     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 394     EVP_CIPHER_CTX_cleanup(ctx);
 395     EVP_CIPHER_CTX_free(ctx);
 396
 397     TEST_ASSERT(outlen != size || memcmp(c, pt, size));
 398     if (test) {
 399         printf("  d[%d] = ", outlen);
 400         hexdump(c, outlen);
 401     }
 402     ret |= test;
 403
 404     return ret;
 405 }
 406
 407 static int test_stream(const EVP_CIPHER *type, const char *name,
 408     const unsigned char *pt, const unsigned char *key, const unsigned char *exp,
 409     size_t size, const unsigned char *iv, size_t iv_size, int acpkm)
 410 {
 411     EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
 412     const char *standard = acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015";
 413     int ret = 0, test;
 414     int z;
 415
 416     OPENSSL_assert(ctx);
 417     /* Cycle through all lengths from 1 upto maximum size */
 418     printf("Stream encryption test from %s [%s] \n", standard, name);
 419
 420     /* Block size for stream ciphers should be 1. */
 421     T(EVP_CIPHER_block_size(type) == 1);
 422
 423     for (z = 1; z <= size; z++) {
 424         unsigned char c[size];
 425         int outlen, tmplen;
 426         int sz = 0;
 427         int i;
 428
 429         EVP_CIPHER_CTX_init(ctx);
 430         T(EVP_CipherInit_ex(ctx, type, NULL, key, iv, 1));
 431         T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 432         memset(c, 0xff, sizeof(c));
 433         if (acpkm)
 434             T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 435         for (i = 0; i < size; i += z) {
 436             if (i + z > size)
 437                 sz = size - i;
 438             else
 439                 sz = z;
 440             T(EVP_CipherUpdate(ctx, c + i, &outlen, pt + i, sz));
 441             OPENSSL_assert(outlen == sz);
 442         }
 443         outlen = i - z + sz;
 444         T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 445         EVP_CIPHER_CTX_cleanup(ctx);
 446
 447         test = outlen != size || memcmp(c, exp, size);
 448         printf("%c", test ? 'E' : '+');
 449         ret |= test;
 450     }
 451     printf("\n");
 452     TEST_ASSERT(ret);
 453     EVP_CIPHER_CTX_free(ctx);
 454
 455     return ret;
 456 }
 457
 458 int main(int argc, char **argv)
 459 {
 460     int ret = 0;
 461     const struct testcase *t;
 462
 463 #if MIPSEL
 464     /* Trigger SIGBUS for unaligned access. */
 465     sysmips(MIPS_FIXADE, 0);
 466 #endif
 467     setenv("OPENSSL_ENGINES", ENGINE_DIR, 0);
 468     OPENSSL_add_all_algorithms_conf();
 469     ERR_load_crypto_strings();
 470     ENGINE *eng;
 471     T(eng = ENGINE_by_id("gost"));
 472     T(ENGINE_init(eng));
 473     T(ENGINE_set_default(eng, ENGINE_METHOD_ALL));
 474
 475     for (t = testcases; t->nid; t++) {
 476         int inplace;
 477         const char *standard = t->acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015";
 478
 479         const EVP_CIPHER *type = EVP_get_cipherbynid(t->nid);
 480         const char *name = EVP_CIPHER_name(type);
 481
 482         printf(cBLUE "# Tests for %s [%s]\n" cNORM, name, standard);
 483         for (inplace = 0; inplace <= 1; inplace++)
 484             ret |= test_block(type, name, t->block,
 485                 t->plaintext, t->key, t->expected, t->size,
 486                 t->iv, t->iv_size, t->acpkm, inplace);
 487         if (t->stream)
 488             ret |= test_stream(type, name,
 489                 t->plaintext, t->key, t->expected, t->size,
 490                 t->iv, t->iv_size, t->acpkm);
 491     }
 492
 493     ENGINE_finish(eng);
 494     ENGINE_free(eng);
 495
 496     if (ret)
 497         printf(cDRED "= Some tests FAILED!\n" cNORM);
 498     else
 499         printf(cDGREEN "= All tests passed!\n" cNORM);
 500     return ret;
 501 }