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/provider.h>
  10 #include <openssl/evp.h>
  11 #include <openssl/rand.h>
  12 #include <openssl/err.h>
  13 #include <openssl/asn1.h>
  14 #include <string.h>
  15
  16 #define T(e) ({ \
  17     if (!(e)) {\
  18         ERR_print_errors_fp(stderr);\
  19         OpenSSLDie(__FILE__, __LINE__, #e);\
  20     } \
  21 })
  22
  23 #define cRED    "\033[1;31m"
  24 #define cDRED   "\033[0;31m"
  25 #define cGREEN  "\033[1;32m"
  26 #define cDGREEN "\033[0;32m"
  27 #define cBLUE   "\033[1;34m"
  28 #define cMAGENT "\033[1;35m"
  29 #define cDBLUE  "\033[0;34m"
  30 #define cNORM   "\033[m"
  31 #define TEST_ASSERT(e) {if ((test = (e))) \
  32                  printf(cRED "Test FAILED" cNORM "\n"); \
  33              else \
  34                  printf(cGREEN "Test passed" cNORM "\n");}
  35
  36 /* Pragma to allow commenting out some tests. */
  37 #pragma GCC diagnostic ignored "-Wunused-const-variable"
  38
  39 /*
  40  * Test keys from both GOST R 34.12-2015 and GOST R 34.13-2015,
  41  * for 128-bit cipher (A.1).
  42  */
  43 static const unsigned char K[32] = {
  44     0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,
  45     0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
  46 };
  47
  48 /*
  49  * Key for 64-bit cipher (A.2).
  50  */
  51 static const unsigned char Km[32] = {
  52     0xff,0xee,0xdd,0xcc,0xbb,0xaa,0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22,0x11,0x00,
  53     0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff,
  54 };
  55
  56 /*
  57  * Plaintext from GOST R 34.13-2015 A.1.
  58  * First 16 bytes is vector (a) from GOST R 34.12-2015 A.1.
  59  */
  60 static const unsigned char P[] = {
  61     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xff,0xee,0xdd,0xcc,0xbb,0xaa,0x99,0x88,
  62     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,
  63     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,
  64     0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,0x11,
  65 };
  66
  67 /* Plaintext for 64-bit cipher (A.2) */
  68 static const unsigned char Pm[] = {
  69     0x92,0xde,0xf0,0x6b,0x3c,0x13,0x0a,0x59,0xdb,0x54,0xc7,0x04,0xf8,0x18,0x9d,0x20,
  70     0x4a,0x98,0xfb,0x2e,0x67,0xa8,0x02,0x4c,0x89,0x12,0x40,0x9b,0x17,0xb5,0x7e,0x41,
  71 };
  72
  73 /* Extended plaintext from tc26 acpkm Kuznyechik test vector */
  74 static const unsigned char P_acpkm[] = {
  75     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88,
  76     0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,
  77     0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,
  78     0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,
  79     0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,
  80     0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33,
  81     0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33,0x44,
  82 };
  83 static const unsigned char E_ecb[] = {
  84     /* ECB test vectors from GOST R 34.13-2015  A.1.1 */
  85     /* first 16 bytes is vector (b) from GOST R 34.12-2015 A.1 */
  86     0x7f,0x67,0x9d,0x90,0xbe,0xbc,0x24,0x30,0x5a,0x46,0x8d,0x42,0xb9,0xd4,0xed,0xcd,
  87     0xb4,0x29,0x91,0x2c,0x6e,0x00,0x32,0xf9,0x28,0x54,0x52,0xd7,0x67,0x18,0xd0,0x8b,
  88     0xf0,0xca,0x33,0x54,0x9d,0x24,0x7c,0xee,0xf3,0xf5,0xa5,0x31,0x3b,0xd4,0xb1,0x57,
  89     0xd0,0xb0,0x9c,0xcd,0xe8,0x30,0xb9,0xeb,0x3a,0x02,0xc4,0xc5,0xaa,0x8a,0xda,0x98,
  90 };
  91 static const unsigned char E_ctr[] = {
  92     /* CTR test vectors from GOST R 34.13-2015  A.1.2 */
  93     0xf1,0x95,0xd8,0xbe,0xc1,0x0e,0xd1,0xdb,0xd5,0x7b,0x5f,0xa2,0x40,0xbd,0xa1,0xb8,
  94     0x85,0xee,0xe7,0x33,0xf6,0xa1,0x3e,0x5d,0xf3,0x3c,0xe4,0xb3,0x3c,0x45,0xde,0xe4,
  95     0xa5,0xea,0xe8,0x8b,0xe6,0x35,0x6e,0xd3,0xd5,0xe8,0x77,0xf1,0x35,0x64,0xa3,0xa5,
  96     0xcb,0x91,0xfa,0xb1,0xf2,0x0c,0xba,0xb6,0xd1,0xc6,0xd1,0x58,0x20,0xbd,0xba,0x73,
  97 };
  98 static const unsigned char Em_ctr[] = {
  99     /* CTR test vectors from GOST R 34.13-2015  A.2.2 */
 100     0x4e,0x98,0x11,0x0c,0x97,0xb7,0xb9,0x3c,0x3e,0x25,0x0d,0x93,0xd6,0xe8,0x5d,0x69,
 101     0x13,0x6d,0x86,0x88,0x07,0xb2,0xdb,0xef,0x56,0x8e,0xb6,0x80,0xab,0x52,0xa1,0x2d,
 102 };
 103 static const unsigned char E_acpkm[] = {
 104     0xF1,0x95,0xD8,0xBE,0xC1,0x0E,0xD1,0xDB,0xD5,0x7B,0x5F,0xA2,0x40,0xBD,0xA1,0xB8,
 105     0x85,0xEE,0xE7,0x33,0xF6,0xA1,0x3E,0x5D,0xF3,0x3C,0xE4,0xB3,0x3C,0x45,0xDE,0xE4,
 106     0x4B,0xCE,0xEB,0x8F,0x64,0x6F,0x4C,0x55,0x00,0x17,0x06,0x27,0x5E,0x85,0xE8,0x00,
 107     0x58,0x7C,0x4D,0xF5,0x68,0xD0,0x94,0x39,0x3E,0x48,0x34,0xAF,0xD0,0x80,0x50,0x46,
 108     0xCF,0x30,0xF5,0x76,0x86,0xAE,0xEC,0xE1,0x1C,0xFC,0x6C,0x31,0x6B,0x8A,0x89,0x6E,
 109     0xDF,0xFD,0x07,0xEC,0x81,0x36,0x36,0x46,0x0C,0x4F,0x3B,0x74,0x34,0x23,0x16,0x3E,
 110     0x64,0x09,0xA9,0xC2,0x82,0xFA,0xC8,0xD4,0x69,0xD2,0x21,0xE7,0xFB,0xD6,0xDE,0x5D,
 111 };
 112 /* Test vector from R 23565.1.017-2018 A.4.2.
 113  * Key material from ACPKM-Master(K,768,3) for OMAC-ACPKM. */
 114 static const unsigned char E_acpkm_master[] = {
 115     0x0C,0xAB,0xF1,0xF2,0xEF,0xBC,0x4A,0xC1,0x60,0x48,0xDF,0x1A,0x24,0xC6,0x05,0xB2,
 116     0xC0,0xD1,0x67,0x3D,0x75,0x86,0xA8,0xEC,0x0D,0xD4,0x2C,0x45,0xA4,0xF9,0x5B,0xAE,
 117     0x0F,0x2E,0x26,0x17,0xE4,0x71,0x48,0x68,0x0F,0xC3,0xE6,0x17,0x8D,0xF2,0xC1,0x37,
 118     0xC9,0xDD,0xA8,0x9C,0xFF,0xA4,0x91,0xFE,0xAD,0xD9,0xB3,0xEA,0xB7,0x03,0xBB,0x31,
 119     0xBC,0x7E,0x92,0x7F,0x04,0x94,0x72,0x9F,0x51,0xB4,0x9D,0x3D,0xF9,0xC9,0x46,0x08,
 120     0x00,0xFB,0xBC,0xF5,0xED,0xEE,0x61,0x0E,0xA0,0x2F,0x01,0x09,0x3C,0x7B,0xC7,0x42,
 121     0xD7,0xD6,0x27,0x15,0x01,0xB1,0x77,0x77,0x52,0x63,0xC2,0xA3,0x49,0x5A,0x83,0x18,
 122     0xA8,0x1C,0x79,0xA0,0x4F,0x29,0x66,0x0E,0xA3,0xFD,0xA8,0x74,0xC6,0x30,0x79,0x9E,
 123     0x14,0x2C,0x57,0x79,0x14,0xFE,0xA9,0x0D,0x3B,0xC2,0x50,0x2E,0x83,0x36,0x85,0xD9,
 124 };
 125 static const unsigned char P_acpkm_master[sizeof(E_acpkm_master)] = { 0 };
 126 /*
 127  * Other modes (ofb, cbc, cfb) is impossible to test to match GOST R
 128  * 34.13-2015 test vectors exactly, due to these vectors having exceeding
 129  * IV length value (m) = 256 bits, while openssl have hard-coded limit
 130  * of maximum IV length of 128 bits (EVP_MAX_IV_LENGTH).
 131  * Also, current grasshopper code having fixed IV length of 128 bits.
 132  *
 133  * Thus, new test vectors are generated with truncated 128-bit IV using
 134  * canonical GOST implementation from TC26.
 135  */
 136 static const unsigned char E_ofb[] = {
 137     /* OFB test vector generated from canonical implementation */
 138     0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95,
 139     0x77,0x91,0x46,0xdb,0x2d,0x93,0xa9,0x4e,0xd9,0x3c,0xf6,0x8b,0x32,0x39,0x7f,0x19,
 140     0xe9,0x3c,0x9e,0x57,0x44,0x1d,0x87,0x05,0x45,0xf2,0x40,0x36,0xa5,0x8c,0xee,0xa3,
 141     0xcf,0x3f,0x00,0x61,0xd5,0x64,0x23,0x54,0x5b,0x96,0x0d,0x86,0x4c,0xc8,0x68,0xda,
 142 };
 143 static const unsigned char E_cbc[] = {
 144     /* CBC test vector generated from canonical implementation */
 145     0x68,0x99,0x72,0xd4,0xa0,0x85,0xfa,0x4d,0x90,0xe5,0x2e,0x3d,0x6d,0x7d,0xcc,0x27,
 146     0xab,0xf1,0x70,0xb2,0xb2,0x26,0xc3,0x01,0x0c,0xcf,0xa1,0x36,0xd6,0x59,0xcd,0xaa,
 147     0xca,0x71,0x92,0x72,0xab,0x1d,0x43,0x8e,0x15,0x50,0x7d,0x52,0x1e,0xcd,0x55,0x22,
 148     0xe0,0x11,0x08,0xff,0x8d,0x9d,0x3a,0x6d,0x8c,0xa2,0xa5,0x33,0xfa,0x61,0x4e,0x71,
 149 };
 150 static const unsigned char E_cfb[] = {
 151     /* CFB test vector generated from canonical implementation */
 152     0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95,
 153     0x68,0xc1,0xb9,0x9c,0x4d,0xf5,0x9c,0xc7,0x95,0x1e,0x37,0x39,0xb5,0xb3,0xcd,0xbf,
 154     0x07,0x3f,0x4d,0xd2,0xd6,0xde,0xb3,0xcf,0xb0,0x26,0x54,0x5f,0x7a,0xf1,0xd8,0xe8,
 155     0xe1,0xc8,0x52,0xe9,0xa8,0x56,0x71,0x62,0xdb,0xb5,0xda,0x7f,0x66,0xde,0xa9,0x26,
 156 };
 157 static const unsigned char Em_cbc[] = {
 158     /* 28147-89 CBC test vector generated from canonical implementation */
 159     0x96,0xd1,0xb0,0x5e,0xea,0x68,0x39,0x19,0xf3,0x96,0xb7,0x8c,0x1d,0x47,0xbb,0x61,
 160     0x61,0x83,0xe2,0xcc,0xa9,0x76,0xa4,0xba,0xbe,0x9c,0xe8,0x7d,0x6f,0xa7,0x3c,0xf2,
 161 };
 162
 163 /* IV is half CNT size. */
 164 static const unsigned char iv_ctr[]     = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0 };
 165 /* Third of IV from GOST R 34.13-2015 А.2.4 (Impossible to use full 192-bit IV.) */
 166 static const unsigned char iv_cbc[]     = { 0x12,0x34,0x56,0x78,0x90,0xab,0xcd,0xef };
 167 /* Truncated to 128-bits IV from GOST examples. */
 168 static const unsigned char iv_128bit[]  = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0,
 169                                             0xa1,0xb2,0xc3,0xd4,0xe5,0xf0,0x01,0x12 };
 170 /* Universal IV for ACPKM-Master. */
 171 static const unsigned char iv_acpkm_m[] = { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff };
 172
 173 static struct testcase {
 174     const char *algname;
 175     int block; /* Actual underlying block size (bytes). */
 176     int stream; /* Stream cipher. */
 177     const unsigned char *plaintext;
 178     const unsigned char *key;
 179     const unsigned char *expected;
 180     size_t size;
 181     const unsigned char *iv;
 182     size_t iv_size;
 183     int acpkm;
 184 } testcases[] = {
 185     {
 186         .algname = SN_grasshopper_ecb,
 187         .block = 16,
 188         .plaintext = P,
 189         .key = K,
 190         .expected = E_ecb,
 191         .size = sizeof(P),
 192     },
 193     {
 194         .algname = SN_grasshopper_ctr,
 195         .block = 16,
 196         .stream = 1,
 197         .plaintext = P,
 198         .key = K,
 199         .expected = E_ctr,
 200         .size = sizeof(P),
 201         .iv = iv_ctr,
 202         .iv_size = sizeof(iv_ctr),
 203     },
 204     {
 205         .algname = SN_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm,
 206         .block = 16,
 207         .stream = 1,
 208         .plaintext = P,
 209         .key = K,
 210         .expected = E_ctr,
 211         .size = sizeof(P),
 212         .iv = iv_ctr,
 213         .iv_size = sizeof(iv_ctr),
 214         /* no acpkm works same as ctr */
 215     },
 216     {
 217         .algname = SN_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm,
 218         .block = 16,
 219         .stream = 1,
 220         .plaintext = P_acpkm,
 221         .key = K,
 222         .expected = E_acpkm,
 223         .size = sizeof(P_acpkm),
 224         .iv = iv_ctr,
 225         .iv_size = sizeof(iv_ctr),
 226         .acpkm = 256 / 8,
 227     },
 228     {
 229         .algname = SN_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm,
 230         .block = 16,
 231         .plaintext = P_acpkm_master,
 232         .key = K,
 233         .expected = E_acpkm_master,
 234         .size = sizeof(P_acpkm_master),
 235         .iv = iv_acpkm_m,
 236         .iv_size = sizeof(iv_acpkm_m),
 237         .acpkm = 768 / 8
 238     },
 239     {
 240         .algname = SN_grasshopper_ofb,
 241         .block = 16,
 242         .stream = 1,
 243         .plaintext = P,
 244         .key = K,
 245         .expected = E_ofb,
 246         .size = sizeof(P),
 247         .iv = iv_128bit,
 248         .iv_size = sizeof(iv_128bit),
 249     },
 250     {
 251         .algname = SN_grasshopper_cbc,
 252         .block = 16,
 253         .plaintext = P,
 254         .key = K,
 255         .expected = E_cbc,
 256         .size = sizeof(P),
 257         .iv = iv_128bit,
 258         .iv_size = sizeof(iv_128bit),
 259     },
 260     {
 261         .algname = SN_grasshopper_cfb,
 262         .block = 16,
 263         .plaintext = P,
 264         .key = K,
 265         .expected = E_cfb,
 266         .size = sizeof(P),
 267         .iv = iv_128bit,
 268         .iv_size = sizeof(iv_128bit),
 269     },
 270     {
 271         .algname = SN_magma_ctr,
 272         .block = 8,
 273         .plaintext = Pm,
 274         .key = Km,
 275         .expected = Em_ctr,
 276         .size = sizeof(Pm),
 277         .iv = iv_ctr,
 278         .iv_size = sizeof(iv_ctr) / 2,
 279     },
 280     {
 281         .algname = SN_magma_cbc,
 282         .block = 8,
 283         .plaintext = Pm,
 284         .key = Km,
 285         .expected = Em_cbc,
 286         .size = sizeof(Pm),
 287         .iv = iv_cbc,
 288         .iv_size = sizeof(iv_cbc),
 289     },
 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         if (EVP_CIPHER_get0_provider(type) != NULL) {
 338             OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
 339             size_t v = (size_t)acpkm;
 340
 341             params[0] = OSSL_PARAM_construct_size_t("key-mesh", &v);
 342             T(EVP_CIPHER_CTX_set_params(ctx, params));
 343         } else {
 344             T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 345         }
 346     }
 347     T(EVP_CipherUpdate(ctx, c, &outlen, inplace? c : pt, size));
 348     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 349     EVP_CIPHER_CTX_cleanup(ctx);
 350
 351     TEST_ASSERT(outlen != size || memcmp(c, exp, size));
 352     if (test) {
 353         printf("  c[%d] = ", outlen);
 354         hexdump(c, outlen);
 355     }
 356     ret |= test;
 357
 358     /* test with small chunks of block size */
 359     printf("Chunked encryption test from %s [%s] %s: ", standard, name,
 360         inplace ? "in-place" : "out-of-place");
 361     int blocks = size / block_size;
 362     int z;
 363     EVP_CIPHER_CTX_init(ctx);
 364     T(EVP_CipherInit_ex(ctx, type, NULL, key, iv, 1));
 365     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 366     if (inplace)
 367         memcpy(c, pt, size);
 368     else
 369         memset(c, 0, sizeof(c));
 370     if (acpkm) {
 371         if (EVP_CIPHER_get0_provider(type) != NULL) {
 372             OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
 373             size_t v = (size_t)acpkm;
 374
 375             params[0] = OSSL_PARAM_construct_size_t("key-mesh", &v);
 376             T(EVP_CIPHER_CTX_set_params(ctx, params));
 377         } else {
 378             T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 379         }
 380     }
 381     for (z = 0; z < blocks; z++) {
 382         int offset = z * block_size;
 383         int sz = block_size;
 384
 385         T(EVP_CipherUpdate(ctx, c + offset, &outlen, (inplace ? c : pt) + offset, sz));
 386     }
 387     outlen = z * block_size;
 388     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 389     EVP_CIPHER_CTX_cleanup(ctx);
 390
 391     TEST_ASSERT(outlen != size || memcmp(c, exp, size));
 392     if (test) {
 393         printf("  c[%d] = ", outlen);
 394         hexdump(c, outlen);
 395     }
 396     ret |= test;
 397
 398     /* test with single big chunk */
 399     printf("Decryption test from %s [%s] %s: ", standard, name,
 400         inplace ? "in-place" : "out-of-place");
 401     EVP_CIPHER_CTX_init(ctx);
 402     T(EVP_CipherInit_ex(ctx, type, NULL, key, iv, 0));
 403     T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 404     if (inplace)
 405         memcpy(c, exp, size);
 406     else
 407         memset(c, 0, sizeof(c));
 408     if (acpkm) {
 409         if (EVP_CIPHER_get0_provider(type) != NULL) {
 410             OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
 411             size_t v = (size_t)acpkm;
 412
 413             params[0] = OSSL_PARAM_construct_size_t("key-mesh", &v);
 414             T(EVP_CIPHER_CTX_set_params(ctx, params));
 415         } else {
 416             T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 417         }
 418     }
 419     T(EVP_CipherUpdate(ctx, c, &outlen, inplace ? c : exp, size));
 420     T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 421     EVP_CIPHER_CTX_cleanup(ctx);
 422     EVP_CIPHER_CTX_free(ctx);
 423
 424     TEST_ASSERT(outlen != size || memcmp(c, pt, size));
 425     if (test) {
 426         printf("  d[%d] = ", outlen);
 427         hexdump(c, outlen);
 428     }
 429     ret |= test;
 430
 431     return ret;
 432 }
 433
 434 static int test_stream(const EVP_CIPHER *type, const char *name,
 435     const unsigned char *pt, const unsigned char *key, const unsigned char *exp,
 436     size_t size, const unsigned char *iv, size_t iv_size, int acpkm)
 437 {
 438     EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
 439     const char *standard = acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015";
 440     int ret = 0, test;
 441     int z;
 442
 443     OPENSSL_assert(ctx);
 444     /* Cycle through all lengths from 1 upto maximum size */
 445     printf("Stream encryption test from %s [%s] \n", standard, name);
 446
 447     /* Block size for stream ciphers should be 1. */
 448     T(EVP_CIPHER_block_size(type) == 1);
 449
 450     for (z = 1; z <= size; z++) {
 451         unsigned char c[size];
 452         int outlen, tmplen;
 453         int sz = 0;
 454         int i;
 455
 456         EVP_CIPHER_CTX_init(ctx);
 457         T(EVP_CipherInit_ex(ctx, type, NULL, key, iv, 1));
 458         T(EVP_CIPHER_CTX_set_padding(ctx, 0));
 459         memset(c, 0xff, sizeof(c));
 460         if (acpkm) {
 461             if (EVP_CIPHER_get0_provider(type) != NULL) {
 462                 OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
 463                 size_t v = (size_t)acpkm;
 464
 465                 params[0] = OSSL_PARAM_construct_size_t("key-mesh", &v);
 466                 T(EVP_CIPHER_CTX_set_params(ctx, params));
 467             } else {
 468                 T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL));
 469             }
 470         }
 471         for (i = 0; i < size; i += z) {
 472             if (i + z > size)
 473                 sz = size - i;
 474             else
 475                 sz = z;
 476             T(EVP_CipherUpdate(ctx, c + i, &outlen, pt + i, sz));
 477             OPENSSL_assert(outlen == sz);
 478         }
 479         outlen = i - z + sz;
 480         T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen));
 481         EVP_CIPHER_CTX_cleanup(ctx);
 482
 483         test = outlen != size || memcmp(c, exp, size);
 484         printf("%c", test ? 'E' : '+');
 485         ret |= test;
 486     }
 487     printf("\n");
 488     TEST_ASSERT(ret);
 489     EVP_CIPHER_CTX_free(ctx);
 490
 491     return ret;
 492 }
 493
 494 int engine_is_available(const char *name)
 495 {
 496     ENGINE *e = ENGINE_get_first();
 497
 498     while (e != NULL) {
 499         if (strcmp(ENGINE_get_id(e), name) == 0)
 500             break;
 501         e = ENGINE_get_next(e);
 502     }
 503     ENGINE_free(e);
 504     return 0;
 505 }
 506
 507 void warn_if_untested(const EVP_CIPHER *ciph, void *provider)
 508 {
 509     const struct testcase *t;
 510
 511     /* ENGINE provided EVP_MDs have a NULL provider */
 512     if (provider != EVP_CIPHER_get0_provider(ciph))
 513         return;
 514
 515     for (t = testcases; t->algname; t++)
 516         if (EVP_CIPHER_is_a(ciph, t->algname))
 517             break;
 518     if (!t->algname)
 519         printf(cMAGENT "Cipher %s is untested!" cNORM "\n", EVP_CIPHER_name(ciph));
 520 }
 521
 522 void warn_all_untested(void)
 523 {
 524     if (engine_is_available("gost")) {
 525         ENGINE *eng;
 526
 527         T(eng = ENGINE_by_id("gost"));
 528         T(ENGINE_init(eng));
 529
 530         ENGINE_CIPHERS_PTR fn_c;
 531         T(fn_c = ENGINE_get_ciphers(eng));
 532         const int *nids;
 533         int n, k;
 534         n = fn_c(eng, NULL, &nids, 0);
 535         for (k = 0; k < n; ++k)
 536             warn_if_untested(ENGINE_get_cipher(eng, nids[k]), NULL);
 537         ENGINE_finish(eng);
 538         ENGINE_free(eng);
 539     }
 540     if (OSSL_PROVIDER_available(NULL, "gostprov")) {
 541         OSSL_PROVIDER *prov;
 542
 543         T(prov = OSSL_PROVIDER_load(NULL, "gostprov"));
 544         EVP_CIPHER_do_all_provided(NULL,
 545                                    (void (*)(EVP_CIPHER *, void *))warn_if_untested,
 546                                    prov);
 547
 548         OSSL_PROVIDER_unload(prov);
 549     }
 550 }
 551
 552 int main(int argc, char **argv)
 553 {
 554     int ret = 0;
 555     const struct testcase *t;
 556
 557 #if MIPSEL
 558     /* Trigger SIGBUS for unaligned access. */
 559     sysmips(MIPS_FIXADE, 0);
 560 #endif
 561     OPENSSL_add_all_algorithms_conf();
 562
 563     for (t = testcases; t->algname; t++) {
 564         int inplace;
 565         const char *standard = t->acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015";
 566
 567         EVP_CIPHER *ciph;
 568
 569         ERR_set_mark();
 570         T((ciph = (EVP_CIPHER *)EVP_get_cipherbyname(t->algname))
 571           || (ciph = EVP_CIPHER_fetch(NULL, t->algname, NULL)));
 572         ERR_pop_to_mark();
 573
 574         printf(cBLUE "# Tests for %s [%s]" cNORM "\n", t->algname, standard);
 575         for (inplace = 0; inplace <= 1; inplace++)
 576             ret |= test_block(ciph, t->algname, t->block,
 577                 t->plaintext, t->key, t->expected, t->size,
 578                 t->iv, t->iv_size, t->acpkm, inplace);
 579         if (t->stream)
 580             ret |= test_stream(ciph, t->algname,
 581                 t->plaintext, t->key, t->expected, t->size,
 582                 t->iv, t->iv_size, t->acpkm);
 583
 584         EVP_CIPHER_free(ciph);
 585     }
 586
 587     warn_all_untested();
 588
 589     if (ret)
 590         printf(cDRED "= Some tests FAILED!" cNORM "\n");
 591     else
 592         printf(cDGREEN "= All tests passed!" cNORM "\n");
 593     return ret;
 594 }