From: Antoine Tenart <antoine.tenart@free-electrons.com>
To: Kamil Konieczny <k.konieczny@partner.samsung.com>
Cc: Antoine Tenart <antoine.tenart@free-electrons.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
davem@davemloft.net, thomas.petazzoni@free-electrons.com,
gregory.clement@free-electrons.com,
miquel.raynal@free-electrons.com, oferh@marvell.com,
igall@marvell.com, nadavh@marvell.com,
linux-crypto@vger.kernel.org
Subject: Re: [PATCH v2 3/4] crypto: inside-secure - only update the result buffer when provided
Date: Fri, 1 Dec 2017 11:55:45 +0100 [thread overview]
Message-ID: <20171201105545.GC22648@kwain> (raw)
In-Reply-To: <cdc62e93-a09d-af28-e279-3a6dd10066fd@partner.samsung.com>
On Fri, Dec 01, 2017 at 11:43:18AM +0100, Kamil Konieczny wrote:
> On 01.12.2017 11:24, Antoine Tenart wrote:
> >
> > Yes the last_req flag is set for the last request, so when
> > digest/finup/final are called. But no we can't copy the result into the
> > state based on this as an user might want to perform multiple updates,
> > then export the context, to import it again before sending more updates.
>
> IMHO set them to false in hash update and init, set finish false and last_req true
> for hash final, and set both true for hash finup and digest.
>
> As Herbert tells in https://www.spinics.net/lists/linux-crypto/msg28658.html
> you should support scenario export + update/finup, so basically export is reading
> state but it do not halt your hash driver.
Except if you import another state in the meantime.
Antoine
--
Antoine Ténart, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2017-12-01 10:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-28 15:42 [PATCH v2 0/4] crypto: inside-secure - set of fixes Antoine Tenart
2017-11-28 15:42 ` [PATCH v2 1/4] crypto: inside-secure - per request invalidation Antoine Tenart
2017-11-28 15:42 ` [PATCH v2 2/4] crypto: inside-secure - free requests even if their handling failed Antoine Tenart
2017-11-28 15:42 ` [PATCH v2 3/4] crypto: inside-secure - only update the result buffer when provided Antoine Tenart
2017-11-30 9:19 ` Kamil Konieczny
2017-11-30 9:29 ` Antoine Tenart
2017-11-30 11:52 ` Kamil Konieczny
2017-11-30 12:41 ` Antoine Tenart
2017-11-30 14:10 ` Kamil Konieczny
2017-11-30 14:30 ` Antoine Tenart
2017-12-01 0:31 ` Herbert Xu
2017-12-01 8:11 ` Antoine Tenart
2017-12-01 10:18 ` Kamil Konieczny
2017-12-01 10:24 ` Antoine Tenart
2017-12-01 10:43 ` Kamil Konieczny
2017-12-01 10:55 ` Antoine Tenart [this message]
2017-12-01 10:36 ` Herbert Xu
2017-12-01 11:24 ` Kamil Konieczny
2017-12-01 10:35 ` Herbert Xu
2017-12-01 10:52 ` Antoine Tenart
2017-11-28 15:42 ` [PATCH v2 4/4] crypto: inside-secure - fix request allocations in invalidation path Antoine Tenart
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