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From: Herbert Xu <herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
To: Stephan Mueller <smueller-T9tCv8IpfcWELgA04lAiVw@public.gmane.org>
Cc: Daniel Borkmann
	<dborkman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	'Quentin Gouchet'
	<quentin.gouchet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	'LKML' <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	linux-crypto-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v5 3/8] crypto: AF_ALG: add AEAD support
Date: Wed, 24 Dec 2014 07:24:01 +1100	[thread overview]
Message-ID: <20141223202401.GA2474@gondor.apana.org.au> (raw)
In-Reply-To: <4537021.IXSvIIgcH4-PJstQz4BMNNP20K/wil9xYQuADTiUCJX@public.gmane.org>

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-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

WARNING: multiple messages have this Message-ID (diff)
From: Herbert Xu <herbert@gondor.apana.org.au>
To: Stephan Mueller <smueller@chronox.de>
Cc: Daniel Borkmann <dborkman@redhat.com>,
	"'Quentin Gouchet'" <quentin.gouchet@gmail.com>,
	"'LKML'" <linux-kernel@vger.kernel.org>,
	linux-crypto@vger.kernel.org, linux-api@vger.kernel.org
Subject: Re: [PATCH v5 3/8] crypto: AF_ALG: add AEAD support
Date: Wed, 24 Dec 2014 07:24:01 +1100	[thread overview]
Message-ID: <20141223202401.GA2474@gondor.apana.org.au> (raw)
In-Reply-To: <4537021.IXSvIIgcH4@tachyon.chronox.de>

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@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

  parent reply	other threads:[~2014-12-23 20:24 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-07 22:20 [PATCH v5 0/8] crypto: AF_ALG: add AEAD and RNG support Stephan Mueller
2014-12-07 22:20 ` Stephan Mueller
2014-12-07 22:21 ` [PATCH v5 1/8] crypto: AF_ALG: add user space interface for AEAD Stephan Mueller
2014-12-08  6:50   ` Stephan Mueller
2014-12-07 22:21 ` [PATCH v5 2/8] crypto: AF_ALG: add setsockopt for auth tag size Stephan Mueller
2014-12-22 12:05   ` Herbert Xu
2014-12-07 22:22 ` [PATCH v5 3/8] crypto: AF_ALG: add AEAD support Stephan Mueller
2014-12-22 11:23   ` Herbert Xu
2014-12-23  8:14     ` Stephan Mueller
     [not found]       ` <101382546.xjTjAHLGAb-PJstQz4BMNNP20K/wil9xYQuADTiUCJX@public.gmane.org>
2014-12-23 11:56         ` Herbert Xu
2014-12-23 11:56           ` Herbert Xu
     [not found]           ` <20141223115626.GA31450-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2014-12-23 14:52             ` Stephan Mueller
2014-12-23 14:52               ` Stephan Mueller
     [not found]               ` <4537021.IXSvIIgcH4-PJstQz4BMNNP20K/wil9xYQuADTiUCJX@public.gmane.org>
2014-12-23 20:24                 ` Herbert Xu [this message]
2014-12-23 20:24                   ` Herbert Xu
     [not found]                   ` <20141223202401.GA2474-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2014-12-24  8:54                     ` Stephan Mueller
2014-12-24  8:54                       ` Stephan Mueller
     [not found]                       ` <2159528.zCJB0y2Cap-PJstQz4BMNNP20K/wil9xYQuADTiUCJX@public.gmane.org>
2014-12-25  8:59                         ` Stephan Mueller
2014-12-25  8:59                           ` Stephan Mueller
2014-12-25 20:28                         ` Herbert Xu
2014-12-25 20:28                           ` Herbert Xu
2014-12-07 22:23 ` [PATCH v5 4/8] crypto: AF_ALG: enable AEAD interface compilation Stephan Mueller
2014-12-07 22:23 ` [PATCH v5 5/8] crypto: AF_ALG: add user space interface for RNG Stephan Mueller
     [not found]   ` <3380968.kTQNpvjKFa-PJstQz4BMNNP20K/wil9xYQuADTiUCJX@public.gmane.org>
2014-12-22 11:27     ` Herbert Xu
2014-12-22 11:27       ` Herbert Xu
     [not found]       ` <20141222112730.GB19532-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2014-12-23  8:27         ` Stephan Mueller
2014-12-23  8:27           ` Stephan Mueller
2014-12-07 22:25 ` [PATCH v5 7/8] crypto: AF_ALG: add random number generator support Stephan Mueller
     [not found] ` <56740432.V2v4gLHrzS-PJstQz4BMNNP20K/wil9xYQuADTiUCJX@public.gmane.org>
2014-12-07 22:24   ` [PATCH v5 6/8] crypto: AF_ALG: zeroize key / seed data Stephan Mueller
2014-12-07 22:24     ` Stephan Mueller
2014-12-07 22:25   ` [PATCH v5 8/8] crypto: AF_ALG: enable RNG interface compilation Stephan Mueller
2014-12-07 22:25     ` Stephan Mueller

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