This patch modifies aes' state to keep the IV as a list of integers instead of their binary representation.

This spares one [binary scan] per block (see ::aes::EncryptBlock and ::aes::DecryptBlock). The cost is an additional [binary scan] in ::aes::Init and ::aes::Reset, but since these functions are called much more rarely than [En|De]cryptBlock, it's worth doing: my tests have shown a gain of ~ 3% in speed.

Also, the last chunk fixes the comment block for ::aes::Decrypt.

[moved the inlined patch into a proper attachment]

Patch applied, revision [4b3d8bca51].
Committed.
Pushed.

Version 1.2, requiring Tcl 8.5.