+ _hidden_aes_256_ctr = EVP_CIPHER_meth_new(NID_aes_256_ctr,
+ 1 /* block size */,
+ 32 /* key len */);
+ if (_hidden_aes_256_ctr == NULL
+ || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_256_ctr,16)
+ || !EVP_CIPHER_meth_set_flags(_hidden_aes_256_ctr,
+ EVP_CIPH_FLAG_DEFAULT_ASN1
+ | EVP_CIPH_CTR_MODE
+ | EVP_CIPH_FLAG_PIPELINE
+ | EVP_CIPH_CUSTOM_COPY)
+ || !EVP_CIPHER_meth_set_init(_hidden_aes_256_ctr,
+ dasync_aes256_init_key)
+ || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_256_ctr,
+ dasync_aes256_ctr_cipher)
+ || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_256_ctr,
+ dasync_aes256_ctr_cleanup)
+ || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_256_ctr,
+ dasync_aes256_ctr_ctrl)
+ || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_256_ctr,
+ sizeof(struct dasync_pipeline_ctx))) {
+ EVP_CIPHER_meth_free(_hidden_aes_256_ctr);
+ _hidden_aes_256_ctr = NULL;
+ }
+