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50b6544e13
All common block ciphers have a block size that's a power of 2. In fact, all of our block ciphers obey this rule. If we require this then CBC can be optimised to avoid an expensive divide on in-place decryption. I've also changed the saving of the first IV in the in-place decryption case to the last IV because that lets us use walk->iv (which is already aligned) for the xor operation where alignment is required. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
291 lines
7.5 KiB
291 lines
7.5 KiB