EVP_PKEY *create_pkey_rsa(const TPM2B_PUBLIC_KEY_RSA *const rsa_unqiue, const uint32_t exponent)
{
    EVP_PKEY_CTX *ctx = NULL;
    EVP_PKEY *rsa_key = NULL;
    BIGNUM *value_n = NULL, *value_e = NULL;
    OSSL_PARAM *key_params = NULL;
    OSSL_PARAM_BLD *param_builder = NULL;

    ctx = EVP_PKEY_CTX_new_from_name(NULL, "RSA", NULL);

    value_n = BN_bin2bn(rsa_unqiue->buffer, rsa_unqiue->size, NULL);
    value_e = uint32_to_bn(exponent ? exponent : 65537);

    param_builder = OSSL_PARAM_BLD_new();

    OSSL_PARAM_BLD_push_BN(param_builder, "n", value_n);
    OSSL_PARAM_BLD_push_BN(param_builder, "e", value_e);
    OSSL_PARAM_BLD_push_BN(param_builder, "d", NULL);

    key_params = OSSL_PARAM_BLD_to_param(param_builder);
    if (!(EVP_PKEY_fromdata_init(ctx) && EVP_PKEY_fromdata(ctx, &rsa_key, EVP_PKEY_KEYPAIR, key_params))) {
        /* Error handling */
    }

    /* Do clean-up here !!! */

    return rsa_key;
}