# define dump_dsa_sig(a,b)
#endif
-/* Convert little-endian byte array into bignum */
-BIGNUM *hashsum2bn(const unsigned char *dgst, int len)
-{
- unsigned char buf[64];
- int i;
-
- if (len > sizeof(buf))
- return NULL;
-
- for (i = 0; i < len; i++) {
- buf[len - i - 1] = dgst[i];
- }
- return BN_bin2bn(buf, len, NULL);
-}
-
static R3410_ec_params *gost_nid2params(int nid)
{
R3410_ec_params *params;
+ /* Map tc26-2012 256-bit parameters to cp-2001 parameters */
+ switch (nid) {
+ case NID_id_tc26_gost_3410_2012_256_paramSetB:
+ nid = NID_id_GostR3410_2001_CryptoPro_A_ParamSet;
+ break;
+ case NID_id_tc26_gost_3410_2012_256_paramSetC:
+ nid = NID_id_GostR3410_2001_CryptoPro_B_ParamSet;
+ break;
+ case NID_id_tc26_gost_3410_2012_256_paramSetD:
+ nid = NID_id_GostR3410_2001_CryptoPro_C_ParamSet;
+ }
+
/* Search nid in 2012 paramset */
params = R3410_2012_512_paramset;
while (params->nid != NID_undef) {
return NULL;
}
+void free_cached_groups()
+{
+ R3410_ec_params *params;
+
+ /* Search nid in 2012 paramset */
+ params = R3410_2012_512_paramset;
+ while (params->nid != NID_undef) {
+ EC_GROUP_free(params->group);
+ params->group = NULL;
+ params++;
+ }
+
+ /* Search nid in 2001 paramset */
+ params = R3410_2001_paramset;
+ while (params->nid != NID_undef) {
+ EC_GROUP_free(params->group);
+ params->group = NULL;
+ params++;
+ }
+}
+
/*
* Fills EC_KEY structure hidden in the app_data field of DSA structure
* with parameter information, extracted from parameter array in
EC_POINT *P = NULL;
BIGNUM *p = NULL, *q = NULL, *a = NULL, *b = NULL, *x = NULL, *y =
NULL, *cofactor = NULL;
- BN_CTX *ctx;
+ BN_CTX *ctx = NULL;
int ok = 0;
if (!eckey || !params) {
return 0;
}
+ if (params->group) {
+ EC_GROUP_set_curve_name(params->group, nid);
+ if (!EC_KEY_set_group(eckey, params->group)) {
+ GOSTerr(GOST_F_FILL_GOST_EC_PARAMS, ERR_R_INTERNAL_ERROR);
+ goto end;
+ }
+ return 1;
+ }
+
if (!(ctx = BN_CTX_new())) {
GOSTerr(GOST_F_FILL_GOST_EC_PARAMS, ERR_R_MALLOC_FAILURE);
return 0;
if (!BN_hex2bn(&x, params->x)
|| !BN_hex2bn(&y, params->y)
- || !EC_POINT_set_affine_coordinates_GFp(grp, P, x, y, ctx)
+ || !EC_POINT_set_affine_coordinates(grp, P, x, y, ctx)
|| !BN_hex2bn(&q, params->q)) {
GOSTerr(GOST_F_FILL_GOST_EC_PARAMS, ERR_R_INTERNAL_ERROR);
goto end;
GOSTerr(GOST_F_FILL_GOST_EC_PARAMS, ERR_R_INTERNAL_ERROR);
goto end;
}
- EC_GROUP_set_curve_name(grp, params->nid);
+ EC_GROUP_set_curve_name(grp, nid);
+ params->group = grp;
if (!EC_KEY_set_group(eckey, grp)) {
GOSTerr(GOST_F_FILL_GOST_EC_PARAMS, ERR_R_INTERNAL_ERROR);
goto end;
}
ok = 1;
end:
- if (P)
- EC_POINT_free(P);
- if (grp)
- EC_GROUP_free(grp);
+ EC_POINT_free(P);
BN_CTX_end(ctx);
BN_CTX_free(ctx);
return ok;
OPENSSL_assert(dgst != NULL && eckey != NULL);
- if (!(ctx = BN_CTX_new())) {
+ if (!(ctx = BN_CTX_secure_new())) {
GOSTerr(GOST_F_GOST_EC_SIGN, ERR_R_MALLOC_FAILURE);
return NULL;
}
BN_CTX_start(ctx);
OPENSSL_assert(dlen == 32 || dlen == 64);
- md = hashsum2bn(dgst, dlen);
+ md = BN_lebin2bn(dgst, dlen, NULL);
newsig = ECDSA_SIG_new();
if (!newsig || !md) {
GOSTerr(GOST_F_GOST_EC_SIGN, ERR_R_MALLOC_FAILURE);
GOSTerr(GOST_F_GOST_EC_SIGN, GOST_R_RNG_ERROR);
goto err;
}
- /*
- * To avoid timing information leaking the length of k,
- * compute C*k using an equivalent scalar of fixed bit-length */
- if (!BN_add(k, k, order)
- || (BN_num_bits(k) <= BN_num_bits(order)
- && !BN_add(k, k, order))) {
- goto err;
- }
- if (!EC_POINT_mul(group, C, k, NULL, NULL, ctx)) {
+ if (!gost_ec_point_mul(group, C, k, NULL, NULL, ctx)) {
GOSTerr(GOST_F_GOST_EC_SIGN, ERR_R_EC_LIB);
goto err;
}
GOSTerr(GOST_F_GOST_EC_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
- if (!EC_POINT_get_affine_coordinates_GFp(group, C, X, NULL, ctx)) {
+ if (!EC_POINT_get_affine_coordinates(group, C, X, NULL, ctx)) {
GOSTerr(GOST_F_GOST_EC_SIGN, ERR_R_EC_LIB);
goto err;
}
ECDSA_SIG_get0(sig, &sig_r, &sig_s);
if (BN_is_zero(sig_s) || BN_is_zero(sig_r) ||
- (BN_cmp(sig_s, order) >= 1) || (BN_cmp(sig_r, order) >= 1)) {
+ BN_is_negative(sig_s) || BN_is_negative(sig_r) ||
+ BN_ucmp(sig_s, order) >= 0 || BN_ucmp(sig_r, order) >= 0) {
GOSTerr(GOST_F_GOST_EC_VERIFY, GOST_R_SIGNATURE_PARTS_GREATER_THAN_Q);
goto err;
-
}
OPENSSL_assert(dgst_len == 32 || dgst_len == 64);
- md = hashsum2bn(dgst, dgst_len);
+ md = BN_lebin2bn(dgst, dgst_len, NULL);
if (!md || !BN_mod(e, md, order, ctx)) {
GOSTerr(GOST_F_GOST_EC_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
GOSTerr(GOST_F_GOST_EC_VERIFY, ERR_R_MALLOC_FAILURE);
goto err;
}
- if (!EC_POINT_mul(group, C, z1, pub_key, z2, ctx)) {
+ if (!gost_ec_point_mul(group, C, z1, pub_key, z2, ctx)) {
GOSTerr(GOST_F_GOST_EC_VERIFY, ERR_R_EC_LIB);
goto err;
}
- if (!EC_POINT_get_affine_coordinates_GFp(group, C, X, NULL, ctx)) {
+ if (!EC_POINT_get_affine_coordinates(group, C, X, NULL, ctx)) {
GOSTerr(GOST_F_GOST_EC_VERIFY, ERR_R_EC_LIB);
goto err;
}
return 0;
}
- ctx = BN_CTX_new();
+ ctx = BN_CTX_secure_new();
if (!ctx) {
GOSTerr(GOST_F_GOST_EC_COMPUTE_PUBLIC, ERR_R_MALLOC_FAILURE);
return 0;
goto err;
}
- if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, ctx)) {
+ if (!gost_ec_point_mul(group, pub_key, priv_key, NULL, NULL, ctx)) {
GOSTerr(GOST_F_GOST_EC_COMPUTE_PUBLIC, ERR_R_EC_LIB);
goto err;
}
return ok;
}
+int gost_ec_point_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
+ const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx)
+{
+ if (group == NULL || r == NULL || ctx == NULL)
+ return 0;
+
+ if (m != NULL && n != NULL) {
+ /* verification */
+ if (q == NULL)
+ return 0;
+ switch(EC_GROUP_get_curve_name(group)) {
+ case NID_id_GostR3410_2001_CryptoPro_A_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetB:
+ return point_mul_two_id_GostR3410_2001_CryptoPro_A_ParamSet(group, r, n, q, m, ctx);
+ case NID_id_GostR3410_2001_CryptoPro_B_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetC:
+ return point_mul_two_id_GostR3410_2001_CryptoPro_B_ParamSet(group, r, n, q, m, ctx);
+ case NID_id_GostR3410_2001_CryptoPro_C_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetD:
+ return point_mul_two_id_GostR3410_2001_CryptoPro_C_ParamSet(group, r, n, q, m, ctx);
+ case NID_id_GostR3410_2001_TestParamSet:
+ return point_mul_two_id_GostR3410_2001_TestParamSet(group, r, n, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_256_paramSetA:
+ return point_mul_two_id_tc26_gost_3410_2012_256_paramSetA(group, r, n, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetA:
+ return point_mul_two_id_tc26_gost_3410_2012_512_paramSetA(group, r, n, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetB:
+ return point_mul_two_id_tc26_gost_3410_2012_512_paramSetB(group, r, n, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetC:
+ return point_mul_two_id_tc26_gost_3410_2012_512_paramSetC(group, r, n, q, m, ctx);
+ default:
+ return EC_POINT_mul(group, r, n, q, m, ctx);
+ }
+ } else if (n != NULL) {
+ /* mul g */
+ switch(EC_GROUP_get_curve_name(group)) {
+ case NID_id_GostR3410_2001_CryptoPro_A_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetB:
+ return point_mul_g_id_GostR3410_2001_CryptoPro_A_ParamSet(group, r, n, ctx);
+ case NID_id_GostR3410_2001_CryptoPro_B_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetC:
+ return point_mul_g_id_GostR3410_2001_CryptoPro_B_ParamSet(group, r, n, ctx);
+ case NID_id_GostR3410_2001_CryptoPro_C_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetD:
+ return point_mul_g_id_GostR3410_2001_CryptoPro_C_ParamSet(group, r, n, ctx);
+ case NID_id_GostR3410_2001_TestParamSet:
+ return point_mul_g_id_GostR3410_2001_TestParamSet(group, r, n, ctx);
+ case NID_id_tc26_gost_3410_2012_256_paramSetA:
+ return point_mul_g_id_tc26_gost_3410_2012_256_paramSetA(group, r, n, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetA:
+ return point_mul_g_id_tc26_gost_3410_2012_512_paramSetA(group, r, n, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetB:
+ return point_mul_g_id_tc26_gost_3410_2012_512_paramSetB(group, r, n, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetC:
+ return point_mul_g_id_tc26_gost_3410_2012_512_paramSetC(group, r, n, ctx);
+ default:
+ return EC_POINT_mul(group, r, n, q, m, ctx);
+ }
+ } else if (m != NULL) {
+ if (q == NULL)
+ return 0;
+ /* mul */
+ switch(EC_GROUP_get_curve_name(group)) {
+ case NID_id_GostR3410_2001_CryptoPro_A_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetB:
+ return point_mul_id_GostR3410_2001_CryptoPro_A_ParamSet(group, r, q, m, ctx);
+ case NID_id_GostR3410_2001_CryptoPro_B_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetC:
+ return point_mul_id_GostR3410_2001_CryptoPro_B_ParamSet(group, r, q, m, ctx);
+ case NID_id_GostR3410_2001_CryptoPro_C_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet:
+ case NID_id_tc26_gost_3410_2012_256_paramSetD:
+ return point_mul_id_GostR3410_2001_CryptoPro_C_ParamSet(group, r, q, m, ctx);
+ case NID_id_GostR3410_2001_TestParamSet:
+ return point_mul_id_GostR3410_2001_TestParamSet(group, r, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_256_paramSetA:
+ return point_mul_id_tc26_gost_3410_2012_256_paramSetA(group, r, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetA:
+ return point_mul_id_tc26_gost_3410_2012_512_paramSetA(group, r, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetB:
+ return point_mul_id_tc26_gost_3410_2012_512_paramSetB(group, r, q, m, ctx);
+ case NID_id_tc26_gost_3410_2012_512_paramSetC:
+ return point_mul_id_tc26_gost_3410_2012_512_paramSetC(group, r, q, m, ctx);
+ default:
+ return EC_POINT_mul(group, r, n, q, m, ctx);
+ }
+ }
+ return 0;
+}
+
/*
*
* Generates GOST R 34.10-2001
}
order = BN_new();
- d = BN_new();
+ d = BN_secure_new();
if (!order || !d) {
GOSTerr(GOST_F_GOST_EC_KEYGEN, ERR_R_MALLOC_FAILURE);
goto end;
projects / openssl-gost / engine.git / blobdiff