EVP_PKEY_encrypt_init_ex
if (EVP_PKEY_encrypt_init_ex(ctx, params) <= 0) {
int EVP_PKEY_encrypt_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
if (!TEST_int_gt(EVP_PKEY_encrypt_init_ex(key_ctx, params), 0))