+#ifdef _WIN32
+#include <winsock.h>
+#else
#include <arpa/inet.h>
+#endif
#include <string.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
+#include <openssl/buffer.h>
#include "gost_lcl.h"
#include "e_gost_err.h"
+int omac_imit_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr);
/*
* Function expects that out is a preallocated buffer of length
* defined as sum of shared_len and mac length defined by mac_nid
goto err;
}
+ if (shared_len + mac_len > (unsigned int)(*out_len)) {
+ GOSTerr(GOST_F_GOST_KEXP15, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
/* we expect IV of half length */
memset(iv_full, 0, 16);
memcpy(iv_full, iv, ivlen);
}
if (EVP_DigestInit_ex(mac, EVP_get_digestbynid(mac_nid), NULL) <= 0
- || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
- || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_MAC_LEN, mac_len, NULL) <= 0
+ || omac_imit_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
+ || omac_imit_ctrl(mac, EVP_MD_CTRL_XOF_LEN, mac_len, NULL) <= 0
|| EVP_DigestUpdate(mac, iv, ivlen) <= 0
|| EVP_DigestUpdate(mac, shared_key, shared_len) <= 0
/* As we set MAC length directly, we should not allow overwriting it */
- || EVP_DigestFinal_ex(mac, mac_buf, NULL) <= 0) {
+ || EVP_DigestFinalXOF(mac, mac_buf, mac_len) <= 0) {
GOSTerr(GOST_F_GOST_KEXP15, ERR_R_INTERNAL_ERROR);
goto err;
}
/*
* Function expects that shared_key is a preallocated buffer
- * with length defined as expkeylen - mac_len defined by mac_nid
+ * with length defined as expkeylen + mac_len defined by mac_nid
* */
int gost_kimp15(const unsigned char *expkey, const size_t expkeylen,
int cipher_nid, const unsigned char *cipher_key,
goto err;
}
+ if (expkeylen > sizeof(out)) {
+ GOSTerr(GOST_F_GOST_KIMP15, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ if (ivlen > 16) {
+ GOSTerr(GOST_F_GOST_KIMP15, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
/* we expect IV of half length */
memset(iv_full, 0, 16);
memcpy(iv_full, iv, ivlen);
}
if (EVP_DigestInit_ex(mac, EVP_get_digestbynid(mac_nid), NULL) <= 0
- || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
- || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_MAC_LEN, mac_len, NULL) <= 0
+ || omac_imit_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
+ || omac_imit_ctrl(mac, EVP_MD_CTRL_XOF_LEN, mac_len, NULL) <= 0
|| EVP_DigestUpdate(mac, iv, ivlen) <= 0
|| EVP_DigestUpdate(mac, out, shared_len) <= 0
/* As we set MAC length directly, we should not allow overwriting it */
- || EVP_DigestFinal_ex(mac, mac_buf, NULL) <= 0) {
+ || EVP_DigestFinalXOF(mac, mac_buf, mac_len) <= 0) {
GOSTerr(GOST_F_GOST_KIMP15, ERR_R_INTERNAL_ERROR);
goto err;
}
int iters, i = 0;
unsigned char zero = 0;
unsigned char *ptr = keyout;
- HMAC_CTX *ctx = NULL;
+ HMAC_CTX *ctx;
unsigned char *len_ptr = NULL;
uint32_t len_repr = htonl(keyout_len * 8);
size_t len_repr_len = 4;
return 1;
}
-#ifdef ENABLE_UNIT_TESTS
-# include <stdio.h>
-# include <string.h>
-# include <openssl/obj_mac.h>
-
-static void hexdump(FILE *f, const char *title, const unsigned char *s, int l)
+int gost_tlstree(int cipher_nid, const unsigned char *in, unsigned char *out,
+ const unsigned char *tlsseq)
{
- 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)
-{
- const unsigned char shared_key[] = {
- 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF,
- 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
- 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
- 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF
- };
-
- const unsigned char magma_key[] = {
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
- 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
- 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- };
-
- unsigned char mac_magma_key[] = {
- 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
- 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
- };
-
- const unsigned char magma_iv[] = { 0x67, 0xBE, 0xD6, 0x54 };
-
- const unsigned char magma_export[] = {
- 0xCF, 0xD5, 0xA1, 0x2D, 0x5B, 0x81, 0xB6, 0xE1,
- 0xE9, 0x9C, 0x91, 0x6D, 0x07, 0x90, 0x0C, 0x6A,
- 0xC1, 0x27, 0x03, 0xFB, 0x3A, 0xBD, 0xED, 0x55,
- 0x56, 0x7B, 0xF3, 0x74, 0x2C, 0x89, 0x9C, 0x75,
- 0x5D, 0xAF, 0xE7, 0xB4, 0x2E, 0x3A, 0x8B, 0xD9
- };
-
- unsigned char kdftree_key[] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
- 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
- 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
- };
-
- unsigned char kdf_label[] = { 0x26, 0xBD, 0xB8, 0x78 };
- unsigned char kdf_seed[] =
- { 0xAF, 0x21, 0x43, 0x41, 0x45, 0x65, 0x63, 0x78 };
- const unsigned char kdf_etalon[] = {
- 0x22, 0xB6, 0x83, 0x78, 0x45, 0xC6, 0xBE, 0xF6,
- 0x5E, 0xA7, 0x16, 0x72, 0xB2, 0x65, 0x83, 0x10,
- 0x86, 0xD3, 0xC7, 0x6A, 0xEB, 0xE6, 0xDA, 0xE9,
- 0x1C, 0xAD, 0x51, 0xD8, 0x3F, 0x79, 0xD1, 0x6B,
- 0x07, 0x4C, 0x93, 0x30, 0x59, 0x9D, 0x7F, 0x8D,
- 0x71, 0x2F, 0xCA, 0x54, 0x39, 0x2F, 0x4D, 0xDD,
- 0xE9, 0x37, 0x51, 0x20, 0x6B, 0x35, 0x84, 0xC8,
- 0xF4, 0x3F, 0x9E, 0x6D, 0xC5, 0x15, 0x31, 0xF9
- };
-
- unsigned char buf[32 + 16];
- int ret = 0;
- int outlen = 40;
- unsigned char kdf_result[64];
-
- OpenSSL_add_all_algorithms();
- memset(buf, 0, sizeof(buf));
-
- ret = gost_kexp15(shared_key, 32,
- NID_magma_ctr, magma_key,
- NID_magma_mac, mac_magma_key, magma_iv, 4, buf, &outlen);
-
- if (ret <= 0)
- ERR_print_errors_fp(stderr);
- else {
- hexdump(stdout, "Magma key export", buf, 40);
- if (memcmp(buf, magma_export, 40) != 0) {
- fprintf(stdout, "ERROR! test failed\n");
- }
- }
-
- ret = gost_kimp15(magma_export, 40,
- NID_magma_ctr, magma_key,
- NID_magma_mac, mac_magma_key, magma_iv, 4, buf);
-
- if (ret <= 0)
- ERR_print_errors_fp(stderr);
- else {
- hexdump(stdout, "Magma key import", buf, 32);
- if (memcmp(buf, shared_key, 32) != 0) {
- fprintf(stdout, "ERROR! test failed\n");
- }
- }
-
- ret = gost_kdftree2012_256(kdf_result, 64, kdftree_key, 32, kdf_label, 4,
- kdf_seed, 8, 1);
- if (ret <= 0)
- ERR_print_errors_fp(stderr);
- else {
- hexdump(stdout, "KDF TREE", kdf_result, 64);
- if (memcmp(kdf_result, kdf_etalon, 64) != 0) {
- fprintf(stdout, "ERROR! test failed\n");
- }
+ uint64_t gh_c1 = 0x00000000FFFFFFFF, gh_c2 = 0x0000F8FFFFFFFFFF,
+ gh_c3 = 0xC0FFFFFFFFFFFFFF;
+ uint64_t mg_c1 = 0x00000000C0FFFFFF, mg_c2 = 0x000000FEFFFFFFFF,
+ mg_c3 = 0x00F0FFFFFFFFFFFF;
+ uint64_t c1, c2, c3;
+ uint64_t seed1, seed2, seed3;
+ uint64_t seq;
+ unsigned char ko1[32], ko2[32];
+
+ switch (cipher_nid) {
+ case NID_magma_cbc:
+ c1 = mg_c1;
+ c2 = mg_c2;
+ c3 = mg_c3;
+ break;
+ case NID_grasshopper_cbc:
+ c1 = gh_c1;
+ c2 = gh_c2;
+ c3 = gh_c3;
+ break;
+ default:
+ return 0;
}
+#ifndef L_ENDIAN
+ BUF_reverse((unsigned char *)&seq, tlsseq, 8);
+#else
+ memcpy(&seq, tlsseq, 8);
+#endif
+ seed1 = seq & c1;
+ seed2 = seq & c2;
+ seed3 = seq & c3;
+
+ if (gost_kdftree2012_256(ko1, 32, in, 32, (const unsigned char *)"level1", 6,
+ (const unsigned char *)&seed1, 8, 1) <= 0
+ || gost_kdftree2012_256(ko2, 32, ko1, 32, (const unsigned char *)"level2", 6,
+ (const unsigned char *)&seed2, 8, 1) <= 0
+ || gost_kdftree2012_256(out, 32, ko2, 32, (const unsigned char *)"level3", 6,
+ (const unsigned char *)&seed3, 8, 1) <= 0)
+ return 0;
- return 0;
+ return 1;
}
-
-#endif
projects / openssl-gost / engine.git / blobdiff