// Create the OpenSSL representation of the key
void OSSLDSAPublicKey::createOSSLKey()
{
if (dsa != NULL) return;
dsa = DSA_new();
if (dsa == NULL)
{
ERROR_MSG("Could not create DSA object");
return;
}
// Use the OpenSSL implementation and not any engine
#if OPENSSL_VERSION_NUMBER < 0x10100000L
#ifdef WITH_FIPS
if (FIPS_mode())
DSA_set_method(dsa, FIPS_dsa_openssl());
else
DSA_set_method(dsa, DSA_OpenSSL());
#else
DSA_set_method(dsa, DSA_OpenSSL());
#endif
#else
DSA_set_method(dsa, DSA_OpenSSL());
#endif
BIGNUM* bn_p = OSSL::byteString2bn(p);
BIGNUM* bn_q = OSSL::byteString2bn(q);
BIGNUM* bn_g = OSSL::byteString2bn(g);
BIGNUM* bn_pub_key = OSSL::byteString2bn(y);
DSA_set0_pqg(dsa, bn_p, bn_q, bn_g);
DSA_set0_key(dsa, bn_pub_key, NULL);
}
const DSA_METHOD *DSA_get_default_method (void)
{
if (!default_DSA_method)
{
#ifdef OPENSSL_FIPS
if (FIPS_mode ())
return FIPS_dsa_openssl ();
else
return DSA_OpenSSL ();
#else
default_DSA_method = DSA_OpenSSL ();
#endif
}
return default_DSA_method;
}
