EVP_PKEY_meth_set_encrypt
EVP_PKEY_meth_set_encrypt(dasync_rsa, dasync_rsa_encrypt_init,
OSSL_DEPRECATEDIN_3_0 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, int (*encrypt_init)(EVP_PKEY_CTX *ctx),
EVP_PKEY_meth_set_encrypt(test_rsa, 0, test_encrypt);