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SubjectRe: [PATCH/proposal] dm-crypt: add digest-based iv generation mode
Alright then.

http://jlcooke.ca/lkml/crypto_24feb2004.patch

Changes:
- Added CTR mode to cipher.c
- Fixed Bug where CTR wasn't getting allocated an IV
- Added config for OMAC option on encryption
- Moved scatterwalk stuff to scatterwalk.c added to makefile
- Removed kmalloc'd scratch space in hmac.c which caused a reported bug.
- kernel config defaults to build all the IPSec required algorithms as
well as OMAC (OMAC is only computed if specified by caller)

JLC

On Wed, Feb 25, 2004 at 08:52:36AM -0500, James Morris wrote:
> I think the latter is preferrable. OMAC should probably be a config
> option as well.
...
> You could add something like crypto_cipher_omac_final(), to be used by the
> calling code once it needs the OMAC value, which then calls
> crypto_cipher_get_omac().

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