/* * Parses GOST algorithm parameters from X509_ALGOR and modifies pkey setting * NID and parameters */ static int decode_gost_algor_params(EVP_PKEY *pkey, X509_ALGOR *palg) { ASN1_OBJECT *palg_obj = NULL; int ptype = V_ASN1_UNDEF; int pkey_nid = NID_undef, param_nid = NID_undef; void *_pval; ASN1_STRING *pval = NULL; const unsigned char *p; GOST_KEY_PARAMS *gkp = NULL; X509_ALGOR_get0(&palg_obj, &ptype, &_pval, palg); pval = _pval; if (ptype != V_ASN1_SEQUENCE) { GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, GOST_R_BAD_KEY_PARAMETERS_FORMAT); return 0; } p = pval->data; pkey_nid = OBJ_obj2nid(palg_obj); gkp = d2i_GOST_KEY_PARAMS(NULL, &p, pval->length); if (!gkp) { GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, GOST_R_BAD_PKEY_PARAMETERS_FORMAT); return 0; } param_nid = OBJ_obj2nid(gkp->key_params); GOST_KEY_PARAMS_free(gkp); if(!EVP_PKEY_set_type(pkey, pkey_nid)) { GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, ERR_R_INTERNAL_ERROR); return 0; } switch (pkey_nid) { case NID_id_GostR3410_94: { DSA *dsa = EVP_PKEY_get0(pkey); if (!dsa) { dsa = DSA_new(); if (!EVP_PKEY_assign(pkey, pkey_nid, dsa)) return 0; } if (!fill_GOST94_params(dsa, param_nid)) return 0; break; } case NID_id_GostR3410_2001: { EC_KEY *ec = EVP_PKEY_get0(pkey); if (!ec) { ec = EC_KEY_new(); if (!EVP_PKEY_assign(pkey, pkey_nid, ec)) return 0; } if (!fill_GOST2001_params(ec, param_nid)) return 0; } } return 1; }
/* * Parses GOST algorithm parameters from X509_ALGOR and modifies pkey setting * NID and parameters */ static int decode_gost_algor_params(EVP_PKEY *pkey, X509_ALGOR *palg) { ASN1_OBJECT *palg_obj = NULL; int ptype = V_ASN1_UNDEF; int pkey_nid = NID_undef, param_nid = NID_undef; ASN1_STRING *pval = NULL; const unsigned char *p; GOST_KEY_PARAMS *gkp = NULL; if (!pkey || !palg) return 0; X509_ALGOR_get0(&palg_obj, &ptype, (void **)&pval, palg); if (ptype != V_ASN1_SEQUENCE) { GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, GOST_R_BAD_KEY_PARAMETERS_FORMAT); return 0; } p = pval->data; pkey_nid = OBJ_obj2nid(palg_obj); gkp = d2i_GOST_KEY_PARAMS(NULL, &p, pval->length); if (!gkp) { GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, GOST_R_BAD_PKEY_PARAMETERS_FORMAT); return 0; } param_nid = OBJ_obj2nid(gkp->key_params); GOST_KEY_PARAMS_free(gkp); if (!EVP_PKEY_set_type(pkey, pkey_nid)) { GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, ERR_R_INTERNAL_ERROR); return 0; } return gost_decode_nid_params(pkey, pkey_nid, param_nid); }
static ASN1_STRING * encode_gost01_algor_params(const EVP_PKEY *key) { ASN1_STRING *params = ASN1_STRING_new(); GOST_KEY_PARAMS *gkp = GOST_KEY_PARAMS_new(); int pkey_param_nid = NID_undef; if (params == NULL || gkp == NULL) { GOSTerr(GOST_F_ENCODE_GOST01_ALGOR_PARAMS, ERR_R_MALLOC_FAILURE); ASN1_STRING_free(params); params = NULL; goto err; } pkey_param_nid = EC_GROUP_get_curve_name(GOST_KEY_get0_group(key->pkey.gost)); gkp->key_params = OBJ_nid2obj(pkey_param_nid); gkp->hash_params = OBJ_nid2obj(GOST_KEY_get_digest(key->pkey.gost)); /*gkp->cipher_params = OBJ_nid2obj(cipher_param_nid); */ params->length = i2d_GOST_KEY_PARAMS(gkp, ¶ms->data); if (params->length <= 0) { GOSTerr(GOST_F_ENCODE_GOST01_ALGOR_PARAMS, ERR_R_MALLOC_FAILURE); ASN1_STRING_free(params); params = NULL; goto err; } params->type = V_ASN1_SEQUENCE; err: GOST_KEY_PARAMS_free(gkp); return params; }
static ASN1_STRING *encode_gost_algor_params(const EVP_PKEY *key) { ASN1_STRING *params = ASN1_STRING_new(); GOST_KEY_PARAMS *gkp = GOST_KEY_PARAMS_new(); int pkey_param_nid = NID_undef; void *key_ptr = EVP_PKEY_get0((EVP_PKEY *)key); int result = 0; if (!params || !gkp) { GOSTerr(GOST_F_ENCODE_GOST_ALGOR_PARAMS, ERR_R_MALLOC_FAILURE); goto err; } switch (EVP_PKEY_base_id(key)) { case NID_id_GostR3410_2012_256: pkey_param_nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(key_ptr)); gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_2012_256); break; case NID_id_GostR3410_2012_512: pkey_param_nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(key_ptr)); gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_2012_512); break; case NID_id_GostR3410_2001: pkey_param_nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(key_ptr)); gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_94_CryptoProParamSet); break; } if (pkey_param_nid == NID_undef) { GOSTerr(GOST_F_ENCODE_GOST_ALGOR_PARAMS, GOST_R_INVALID_PARAMSET); goto err; } gkp->key_params = OBJ_nid2obj(pkey_param_nid); /* * gkp->cipher_params = OBJ_nid2obj(cipher_param_nid); */ params->length = i2d_GOST_KEY_PARAMS(gkp, ¶ms->data); if (params->length <= 0) { GOSTerr(GOST_F_ENCODE_GOST_ALGOR_PARAMS, ERR_R_MALLOC_FAILURE); goto err; } params->type = V_ASN1_SEQUENCE; result = 1; err: if (gkp) GOST_KEY_PARAMS_free(gkp); if (result == 0) { /* if error */ if (params) ASN1_STRING_free(params); return NULL; } return params; }
static ASN1_STRING *encode_gost_algor_params(const EVP_PKEY *key) { ASN1_STRING *params = ASN1_STRING_new(); GOST_KEY_PARAMS *gkp = GOST_KEY_PARAMS_new(); int pkey_param_nid = NID_undef; if (!params || !gkp) { GOSTerr(GOST_F_ENCODE_GOST_ALGOR_PARAMS, ERR_R_MALLOC_FAILURE); ASN1_STRING_free(params); params = NULL; goto err; } switch (EVP_PKEY_base_id(key)) { case NID_id_GostR3410_2001: pkey_param_nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(EVP_PKEY_get0((EVP_PKEY *)key))); break; case NID_id_GostR3410_94: pkey_param_nid = (int) gost94_nid_by_params(EVP_PKEY_get0((EVP_PKEY *)key)); if (pkey_param_nid == NID_undef) { GOSTerr(GOST_F_ENCODE_GOST_ALGOR_PARAMS, GOST_R_INVALID_GOST94_PARMSET); ASN1_STRING_free(params); params=NULL; goto err; } break; } gkp->key_params = OBJ_nid2obj(pkey_param_nid); gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_94_CryptoProParamSet); /*gkp->cipher_params = OBJ_nid2obj(cipher_param_nid);*/ params->length = i2d_GOST_KEY_PARAMS(gkp, ¶ms->data); if (params->length <=0 ) { GOSTerr(GOST_F_ENCODE_GOST_ALGOR_PARAMS, ERR_R_MALLOC_FAILURE); ASN1_STRING_free(params); params = NULL; goto err; } params ->type = V_ASN1_SEQUENCE; err: GOST_KEY_PARAMS_free(gkp); return params; }
/* * Parses GOST algorithm parameters from X509_ALGOR and * modifies pkey setting NID and parameters */ static int decode_gost01_algor_params(EVP_PKEY *pkey, const unsigned char **p, int len) { int param_nid = NID_undef, digest_nid = NID_undef; GOST_KEY_PARAMS *gkp = NULL; EC_GROUP *group; GOST_KEY *ec; gkp = d2i_GOST_KEY_PARAMS(NULL, p, len); if (gkp == NULL) { GOSTerr(GOST_F_DECODE_GOST01_ALGOR_PARAMS, GOST_R_BAD_PKEY_PARAMETERS_FORMAT); return 0; } param_nid = OBJ_obj2nid(gkp->key_params); digest_nid = OBJ_obj2nid(gkp->hash_params); GOST_KEY_PARAMS_free(gkp); ec = pkey->pkey.gost; if (ec == NULL) { ec = GOST_KEY_new(); if (ec == NULL) return 0; if (EVP_PKEY_assign_GOST(pkey, ec) == 0) return 0; } group = EC_GROUP_new_by_curve_name(param_nid); if (group == NULL) return 0; EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE); if (GOST_KEY_set_group(ec, group) == 0) { EC_GROUP_free(group); return 0; } EC_GROUP_free(group); if (GOST_KEY_set_digest(ec, digest_nid) == 0) return 0; return 1; }