[[File:aes256_cbc.png|image]]
Specifics of the AES-256 Decryption algorithm are given below, where this AES-256 implementation was written by [[Ilya%20O.%20Levin|http://www.literatecode.com/]Ilya O. Levin]:
<pre>aes_addRoundKey_cpy(buf, ctx->deckey, ctx->key);