tree 2e7e0ccf2265ecdde8708aea69371aaaec787265
parent 53893aa12c714d12422f7d7a94f32ccf214fff86
author Kees Jongenburger <x8-999-github@gmx.com> 1544474682 +0100
committer Igor Opaniuk <igor.opaniuk@linaro.org> 1544639949 +0200

IV In AES CRT mode is always 128 bits regarldless the key size

The initial vector in AES CRT mode is the first data block and
therefore has the size of block size as opposed ot the size of
the key. While Rijndael does support different block sizes AES
only supports 128 bits (16 bytes) block. Even with larger keys
sizes ( e.g. 192 or 256 bits) the block size remains 128 bits.
This change introduced a new constant AES_BLOCK_SIZE  and uses
this for IV related operations.

Signed-off-by: Kees Jongenburger <x8-999-github@gmx.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>