From 6e163b2cdd1233b2b0f46ddd2c9e0fdab0d318f8 Mon Sep 17 00:00:00 2001 From: Vitaly Chikunov Date: Sun, 22 Jul 2018 12:21:43 +0300 Subject: [PATCH] test_grasshopper: Stream modes testing Make sure stream modes can encrypt any block size. --- test_grasshopper.c | 117 ++++++++++++++++++++++++++------------------- 1 file changed, 67 insertions(+), 50 deletions(-) diff --git a/test_grasshopper.c b/test_grasshopper.c index e5a0988..3385be5 100644 --- a/test_grasshopper.c +++ b/test_grasshopper.c @@ -49,6 +49,23 @@ static const unsigned char P[] = { 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00, 0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,0x11, }; +static const unsigned char E[4][sizeof(P)] = { + { /* ECB test vectors from GOST R 34.13-2015 A.1.1 */ + /* first 16 bytes is vector (b) from GOST R 34.12-2015 A.1 */ + 0x7f,0x67,0x9d,0x90,0xbe,0xbc,0x24,0x30,0x5a,0x46,0x8d,0x42,0xb9,0xd4,0xed,0xcd, + 0xb4,0x29,0x91,0x2c,0x6e,0x00,0x32,0xf9,0x28,0x54,0x52,0xd7,0x67,0x18,0xd0,0x8b, + 0xf0,0xca,0x33,0x54,0x9d,0x24,0x7c,0xee,0xf3,0xf5,0xa5,0x31,0x3b,0xd4,0xb1,0x57, + 0xd0,0xb0,0x9c,0xcd,0xe8,0x30,0xb9,0xeb,0x3a,0x02,0xc4,0xc5,0xaa,0x8a,0xda,0x98, + }, + { /* CTR test vectors from GOST R 34.13-2015 A.1.2 */ + 0xf1,0x95,0xd8,0xbe,0xc1,0x0e,0xd1,0xdb,0xd5,0x7b,0x5f,0xa2,0x40,0xbd,0xa1,0xb8, + 0x85,0xee,0xe7,0x33,0xf6,0xa1,0x3e,0x5d,0xf3,0x3c,0xe4,0xb3,0x3c,0x45,0xde,0xe4, + 0xa5,0xea,0xe8,0x8b,0xe6,0x35,0x6e,0xd3,0xd5,0xe8,0x77,0xf1,0x35,0x64,0xa3,0xa5, + 0xcb,0x91,0xfa,0xb1,0xf2,0x0c,0xba,0xb6,0xd1,0xc6,0xd1,0x58,0x20,0xbd,0xba,0x73, + }, +}; +static const unsigned char iv_ctr[] = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; +static const unsigned char *iv[4] = { NULL, iv_ctr, }; static void hexdump(const void *ptr, size_t len) { @@ -64,26 +81,9 @@ static void hexdump(const void *ptr, size_t len) /* Test vectors from GOST R 34.13-2015 A.1 which* includes vectors * from GOST R 34.12-2015 A.1 as first block of ecb mode. */ -static int test_modes(const EVP_CIPHER *type, const char *mode, enum e_mode t) +static int test_block(const EVP_CIPHER *type, const char *mode, enum e_mode t) { EVP_CIPHER_CTX ctx; - unsigned char e[4][sizeof(P)] = { - { /* ECB test vectors from GOST R 34.13-2015 A.1.1 */ - /* first 16 bytes is vector (b) from GOST R 34.12-2015 A.1 */ - 0x7f,0x67,0x9d,0x90,0xbe,0xbc,0x24,0x30,0x5a,0x46,0x8d,0x42,0xb9,0xd4,0xed,0xcd, - 0xb4,0x29,0x91,0x2c,0x6e,0x00,0x32,0xf9,0x28,0x54,0x52,0xd7,0x67,0x18,0xd0,0x8b, - 0xf0,0xca,0x33,0x54,0x9d,0x24,0x7c,0xee,0xf3,0xf5,0xa5,0x31,0x3b,0xd4,0xb1,0x57, - 0xd0,0xb0,0x9c,0xcd,0xe8,0x30,0xb9,0xeb,0x3a,0x02,0xc4,0xc5,0xaa,0x8a,0xda,0x98, - }, - { /* CTR test vectors from GOST R 34.13-2015 A.1.2 */ - 0xf1,0x95,0xd8,0xbe,0xc1,0x0e,0xd1,0xdb,0xd5,0x7b,0x5f,0xa2,0x40,0xbd,0xa1,0xb8, - 0x85,0xee,0xe7,0x33,0xf6,0xa1,0x3e,0x5d,0xf3,0x3c,0xe4,0xb3,0x3c,0x45,0xde,0xe4, - 0xa5,0xea,0xe8,0x8b,0xe6,0x35,0x6e,0xd3,0xd5,0xe8,0x77,0xf1,0x35,0x64,0xa3,0xa5, - 0xcb,0x91,0xfa,0xb1,0xf2,0x0c,0xba,0xb6,0xd1,0xc6,0xd1,0x58,0x20,0xbd,0xba,0x73, - }, - }; - unsigned char iv_ctr[] = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; - unsigned char *iv[4] = { NULL, iv_ctr, }; unsigned char c[sizeof(P)]; int outlen, tmplen; int ret = 0, test; @@ -104,40 +104,15 @@ static int test_modes(const EVP_CIPHER *type, const char *mode, enum e_mode t) hexdump(c, outlen); TEST_ASSERT(outlen != sizeof(P) || - memcmp(c, e[t], sizeof(P))); + memcmp(c, E[t], sizeof(P))); ret |= test; - if (t == E_CTR) { - int i; - - printf("Stream encryption test from GOST R 34.13-2015 [%s] \n", mode); - EVP_CIPHER_CTX_init(&ctx); - EVP_CipherInit_ex(&ctx, type, NULL, K, iv[t], 1); - EVP_CIPHER_CTX_set_padding(&ctx, 0); - memset(c, 0, sizeof(c)); - for (i = 0; i < sizeof(P); i++) { - EVP_CipherUpdate(&ctx, c + i, &outlen, P + i, 1); - OPENSSL_assert(outlen == 1); - } - outlen = i; - EVP_CipherFinal_ex(&ctx, c + outlen, &tmplen); - EVP_CIPHER_CTX_cleanup(&ctx); - printf(" c[%d] =\n", outlen); - hexdump(c, outlen); - - TEST_ASSERT(outlen != sizeof(P) || - memcmp(c, e[t], sizeof(P))); -#if 0 - ret |= test; -#endif - } - printf("Decryption test from GOST R 34.13-2015 [%s] \n", mode); EVP_CIPHER_CTX_init(&ctx); T(EVP_CipherInit_ex(&ctx, type, NULL, K, iv[t], 0)); T(EVP_CIPHER_CTX_set_padding(&ctx, 0)); memset(c, 0, sizeof(c)); - T(EVP_CipherUpdate(&ctx, c, &outlen, e[t], sizeof(P))); + T(EVP_CipherUpdate(&ctx, c, &outlen, E[t], sizeof(P))); T(EVP_CipherFinal_ex(&ctx, c + outlen, &tmplen)); EVP_CIPHER_CTX_cleanup(&ctx); printf(" d[%d] =\n", outlen); @@ -150,10 +125,51 @@ static int test_modes(const EVP_CIPHER *type, const char *mode, enum e_mode t) return ret; } +static int test_stream(const EVP_CIPHER *type, const char *mode, enum e_mode t) +{ + int ret = 0, test; + int z; + + /* Cycle through all lengths from 1 upto maximum size */ + printf("Stream encryption test from GOST R 34.13-2015 [%s] \n", mode); + for (z = 1; z <= sizeof(P); z++) { + EVP_CIPHER_CTX ctx; + unsigned char c[sizeof(P)]; + int outlen, tmplen; + int sz; + int i; + + EVP_CIPHER_CTX_init(&ctx); + EVP_CipherInit_ex(&ctx, type, NULL, K, iv[t], 1); + EVP_CIPHER_CTX_set_padding(&ctx, 0); + memset(c, 0xff, sizeof(c)); + for (i = 0; i < sizeof(P); i += z) { + if (i + z > sizeof(P)) + sz = sizeof(P) - i; + else + sz = z; + EVP_CipherUpdate(&ctx, c + i, &outlen, P + i, sz); + OPENSSL_assert(outlen == sz); + } + outlen = i - z + sz; + EVP_CipherFinal_ex(&ctx, c + outlen, &tmplen); + EVP_CIPHER_CTX_cleanup(&ctx); + + test = outlen != sizeof(P) || + memcmp(c, E[t], sizeof(P)); + printf("%c", test ? 'E' : '+'); + ret |= test; + } + printf("\n"); + TEST_ASSERT(ret); + + return ret; +} + static int test_omac() { EVP_MD_CTX ctx; - unsigned char e[] = { 0x33,0x6f,0x4d,0x29,0x60,0x59,0xfb,0xe3 }; + unsigned char mac[] = { 0x33,0x6f,0x4d,0x29,0x60,0x59,0xfb,0xe3 }; unsigned char md_value[EVP_MAX_MD_SIZE]; unsigned int md_len; int test; @@ -175,8 +191,8 @@ static int test_omac() printf(" MAC[%u] =\n", md_len); hexdump(md_value, md_len); - TEST_ASSERT(md_len != sizeof(e) || - memcmp(e, md_value, md_len)); + TEST_ASSERT(md_len != sizeof(mac) || + memcmp(mac, md_value, md_len)); return test; } @@ -185,8 +201,9 @@ int main(int argc, char **argv) { int ret = 0; - ret |= test_modes(cipher_gost_grasshopper_ecb(), "ecb", E_ECB); - ret |= test_modes(cipher_gost_grasshopper_ctr(), "ctr", E_CTR); + ret |= test_block(cipher_gost_grasshopper_ecb(), "ecb", E_ECB); + ret |= test_block(cipher_gost_grasshopper_ctr(), "ctr", E_CTR); + ret |= test_stream(cipher_gost_grasshopper_ctr(), "ctr", E_CTR); /* * Other modes (ofb, cbc, cfb) is impossible to test to match GOST R * 34.13-2015 test vectors due to these vectors having exceeding IV -- 2.39.5