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/*
* Copyright (c) 2019-2020 Dmitry Belyavskiy <beldmit@gmail.com>
*
* Contents licensed under the terms of the OpenSSL license
* See https://www.openssl.org/source/license.html for details
*/
#ifdef _MSC_VER
# pragma warning(push, 3)
# include <openssl/applink.c>
# pragma warning(pop)
#endif
# include <stdio.h>
# include <string.h>
# include <openssl/err.h>
# include <openssl/evp.h>
static void hexdump(FILE *f, const char *title, const unsigned char *s, int l)
{
int n = 0;
fprintf(f, "%s", title);
for (; n < l; ++n) {
if ((n % 16) == 0)
fprintf(f, "\n%04x", n);
fprintf(f, " %02x", s[n]);
}
fprintf(f, "\n");
}
int main(void)
{
#ifdef EVP_MD_CTRL_TLSTREE
const unsigned char mac_secret[] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
};
const unsigned char enc_key[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char full_iv[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
unsigned char seq0[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char rec0_header[] = {
0x17, 0x03, 0x03, 0x00, 0x0F
};
const unsigned char data0[15] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const unsigned char mac0_etl[16] = {
0x75, 0x53, 0x09, 0xCB, 0xC7, 0x3B, 0xB9, 0x49, 0xC5, 0x0E, 0xBB, 0x86, 0x16, 0x0A, 0x0F, 0xEE
};
const unsigned char enc0_etl[31] = {
0xf3, 0x17, 0xa7, 0x1d, 0x3a, 0xce, 0x43, 0x3b, 0x01, 0xd4, 0xe7, 0xd4, 0xef, 0x61, 0xae, 0x00,
0xd5, 0x3b, 0x41, 0x52, 0x7a, 0x26, 0x1e, 0xdf, 0xc2, 0xba, 0x78, 0x57, 0xc1, 0x93, 0x2d
};
unsigned char data0_processed[31];
unsigned char mac0[16];
unsigned char seq63[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F,
};
const unsigned char rec63_header[] = {
0x17, 0x03, 0x03, 0x10, 0x00
};
unsigned char data63[4096];
const unsigned char mac63_etl[16] = {
0x0A, 0x3B, 0xFD, 0x43, 0x0F, 0xCD, 0xD8, 0xD8, 0x5C, 0x96, 0x46, 0x86, 0x81, 0x78, 0x4F, 0x7D
};
const unsigned char enc63_etl_head[32] = {
0x6A, 0x18, 0x38, 0xB0, 0xA0, 0xD5, 0xA0, 0x4D, 0x1F, 0x29, 0x64, 0x89, 0x6D, 0x08, 0x5F, 0xB7,
0xDA, 0x84, 0xD7, 0x76, 0xC3, 0x9F, 0x5C, 0xDC, 0x37, 0x20, 0xB7, 0xB5, 0x59, 0xEF, 0x13, 0x9D
};
const unsigned char enc63_etl_tail[48] = {
0x0A, 0x81, 0x29, 0x9B, 0x35, 0x98, 0x19, 0x5D, 0xD4, 0x51, 0x68, 0xA6, 0x38, 0x50, 0xA7, 0x6E,
0x1A, 0x4F, 0x1E, 0x6D, 0xD5, 0xEF, 0x72, 0x59, 0x3F, 0xAE, 0x76, 0x55, 0x71, 0xEC, 0x37, 0xE7,
0x17, 0xF5, 0xB8, 0x62, 0x85, 0xBB, 0x5B, 0xFD, 0x83, 0xB6, 0x6A, 0xB7, 0x63, 0x86, 0x52, 0x08
};
unsigned char data63_processed[4096+16];
unsigned char mac63[16];
EVP_MD_CTX *mdctx = EVP_MD_CTX_new();
EVP_CIPHER_CTX *enc = NULL;
const EVP_MD *md;
const EVP_CIPHER *ciph;
EVP_PKEY *mac_key;
size_t mac_len;
int i;
OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
memset(data63, 0, 4096);
md = EVP_get_digestbynid(NID_grasshopper_mac);
EVP_DigestInit_ex(mdctx, md, NULL);
mac_key = EVP_PKEY_new_mac_key(NID_grasshopper_mac, NULL, mac_secret, 32);
EVP_DigestSignInit(mdctx, NULL, md, NULL, mac_key);
EVP_PKEY_free(mac_key);
EVP_MD_CTX_ctrl(mdctx, EVP_MD_CTRL_TLSTREE, 0, seq0);
EVP_DigestSignUpdate(mdctx, seq0, 8);
EVP_DigestSignUpdate(mdctx, rec0_header, 5);
EVP_DigestSignUpdate(mdctx, data0, 15);
EVP_DigestSignFinal(mdctx, mac0, &mac_len);
EVP_MD_CTX_free(mdctx);
hexdump(stderr, "MAC0 result", mac0, mac_len);
if (memcmp(mac0, mac0_etl, 16) != 0) {
fprintf(stderr, "MAC0 mismatch");
exit(1);
}
ciph = EVP_get_cipherbynid(NID_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm);
enc = EVP_CIPHER_CTX_new();
if (EVP_EncryptInit_ex(enc, ciph, NULL, enc_key, full_iv) <= 0) {
fprintf(stderr, "Internal error");
exit(1);
}
for (i = 7; i >= 0; i--) {
++seq0[i];
if (seq0[i] != 0)
break;
}
EVP_CIPHER_CTX_ctrl(enc, EVP_CTRL_TLSTREE, 0, seq0);
EVP_Cipher(enc, data0_processed, data0, sizeof(data0));
EVP_Cipher(enc, data0_processed+sizeof(data0), mac0, 16);
hexdump(stderr, "ENC0 result", data0_processed, 31);
if (memcmp(enc0_etl, data0_processed, sizeof(data0_processed)) != 0) {
fprintf(stderr, "ENC0 mismatch");
exit(1);
}
mdctx = EVP_MD_CTX_new();
EVP_DigestInit_ex(mdctx, md, NULL);
mac_key = EVP_PKEY_new_mac_key(NID_grasshopper_mac, NULL, mac_secret, 32);
EVP_DigestSignInit(mdctx, NULL, md, NULL, mac_key);
EVP_PKEY_free(mac_key);
EVP_MD_CTX_ctrl(mdctx, EVP_MD_CTRL_TLSTREE, 0, seq63);
EVP_DigestSignUpdate(mdctx, seq63, 8);
EVP_DigestSignUpdate(mdctx, rec63_header, 5);
EVP_DigestSignUpdate(mdctx, data63, 4096);
EVP_DigestSignFinal(mdctx, mac63, &mac_len);
EVP_MD_CTX_free(mdctx);
hexdump(stderr, "MAC63 result", mac63, mac_len);
if (memcmp(mac63, mac63_etl, 16) != 0) {
fprintf(stderr, "MAC63 mismatch");
exit(1);
}
for (i = 7; i >= 0; i--) {
++seq63[i];
if (seq63[i] != 0)
break;
}
EVP_CIPHER_CTX_ctrl(enc, EVP_CTRL_TLSTREE, 0, seq63);
EVP_Cipher(enc, data63_processed, data63, sizeof(data63));
EVP_Cipher(enc, data63_processed+sizeof(data63), mac63, 16);
hexdump(stderr, "ENC63 result: head", data63_processed, 32);
if (memcmp(enc63_etl_head, data63_processed, sizeof(enc63_etl_head)) != 0) {
fprintf(stderr, "ENC63 mismatch: head");
exit(1);
}
hexdump(stderr, "ENC63 result: tail", data63_processed+4096+16-48, 48);
if (memcmp(enc63_etl_tail, data63_processed+4096+16-48, sizeof(enc63_etl_tail)) != 0) {
fprintf(stderr, "ENC63 mismatch: tail");
exit(1);
}
#endif
return 0;
}
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