Re: ahash alg that does not implement import/export failed to register

From	Herbert Xu <herbert@gondor.apana.org.au>
Newsgroups	linux.kernel
Subject	Re: ahash alg that does not implement import/export failed to register
Date	2016-01-08 11:00 +0100
Message-ID	<qOBZW-4VO-47@gated-at.bofh.it> (permalink)
References	<qHeF3-4Zt-9@gated-at.bofh.it> <qHfB8-5yW-5@gated-at.bofh.it> <qOBZW-4VO-49@gated-at.bofh.it>
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On Thu, Jan 07, 2016 at 08:49:31AM -0600, Tom Lendacky wrote:
> 
> Is it expected that import and export should work across algorithm
> implementations (eg. export sha1 state from hardware driver and import
> into sha1-generic algorithm)?  Or is the state purely meant for use by
> the driver only? I see a few hardware drivers exporting/importing
> to/from sha1_state and sha256_state and that is what prompts this
> question.

For algorithms in general there is no requirement for the states
to be exported in a particular format.  For certain special cases
such as crc32c we do require a specific format but you don't have
to worry about this for SHA.

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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Re: ahash alg that does not implement import/export failed to  register Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-08 11:00 +0100

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