OSSL_PARAM_ulong
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_N, &key_numbers[N]),
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_E, &key_numbers[E]),
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_D, &key_numbers[D]),
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_FACTOR1, &key_numbers[P]),
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_FACTOR2, &key_numbers[Q]),
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_EXPONENT1, &key_numbers[DP]),
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_EXPONENT2, &key_numbers[DQ]),
OSSL_PARAM_ulong(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, &key_numbers[QINV]),
OSSL_PARAM param = OSSL_PARAM_ulong("a", NULL);