Re: [PATCH v5 3/8] crypto: AF_ALG: add AEAD support

From: Herbert Xu
Date: Tue Dec 23 2014 - 15:24:51 EST


On Tue, Dec 23, 2014 at 03:52:27PM +0100, Stephan Mueller wrote:
> Am Dienstag, 23. Dezember 2014, 22:56:26 schrieb Herbert Xu:
>
> > In fact AEAD is rather awkward because you need to do everything
> > in one go. Perhaps we could adapt our kernel interface to allow
> > partial AEAD operations?
>
>
> I am not sure what you are referring to. The invocation does not need to be in
> one go. You can have arbitrary number of sendmsg calls. But all input data
> needs to be supplied before you call recvmsg.

What I mean is that unlike skcipher we cannot precede until we
have the complete input. So you cannot begin recvmsg until all
input has been sent.

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