static int pkey_gost2001_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
EC_KEY *ec = NULL;
if (!data || data->sign_param_nid == NID_undef) {
GOSTerr(GOST_F_PKEY_GOST01_PARAMGEN, GOST_R_NO_PARAMETERS_SET);
return 0;
}
ec = EC_KEY_new();
if (!fill_GOST_EC_params(ec, data->sign_param_nid)
|| !EVP_PKEY_assign(pkey, NID_id_GostR3410_2001, ec)) {
EC_KEY_free(ec);
return 0;
}
return 1;
}
static int pkey_gost2012_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
EC_KEY *ec;
int result = 0;
if (!data || data->sign_param_nid == NID_undef) {
GOSTerr(GOST_F_PKEY_GOST12_PARAMGEN, GOST_R_NO_PARAMETERS_SET);
return 0;
}
ec = EC_KEY_new();
if (!fill_GOST_EC_params(ec, data->sign_param_nid)) {
EC_KEY_free(ec);
return 0;
}
switch (data->sign_param_nid) {
case NID_id_tc26_gost_3410_2012_512_paramSetA:
case NID_id_tc26_gost_3410_2012_512_paramSetB:
result =
(EVP_PKEY_assign(pkey, NID_id_GostR3410_2012_512, ec)) ? 1 : 0;
break;
case NID_id_GostR3410_2001_CryptoPro_A_ParamSet:
case NID_id_GostR3410_2001_CryptoPro_B_ParamSet:
case NID_id_GostR3410_2001_CryptoPro_C_ParamSet:
case NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet:
case NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet:
case NID_id_GostR3410_2001_TestParamSet:
result =
(EVP_PKEY_assign(pkey, NID_id_GostR3410_2012_256, ec)) ? 1 : 0;
break;
default:
result = 0;
break;
}
if (result == 0)
EC_KEY_free(ec);
return result;
}
static int gost_decode_nid_params(EVP_PKEY *pkey, int pkey_nid, int param_nid)
{
void *key_ptr = EVP_PKEY_get0(pkey);
switch (pkey_nid) {
case NID_id_GostR3410_2012_256:
case NID_id_GostR3410_2012_512:
case NID_id_GostR3410_2001:
if (!key_ptr) {
key_ptr = EC_KEY_new();
if (!EVP_PKEY_assign(pkey, pkey_nid, key_ptr)) {
EC_KEY_free(key_ptr);
break;
}
}
return fill_GOST_EC_params(key_ptr, param_nid);
}
return 0;
}