Messages in this thread | | | Date | Fri, 8 Jan 2016 18:54:54 +0900 | From | Herbert Xu <> | Subject | Re: ahash alg that does not implement import/export failed to register |
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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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