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Date:   Wed, 12 Jun 2019 11:40:50 +0200
From:   Sascha Hauer <s.hauer@pengutronix.de>
To:     Horia Geanta <horia.geanta@nxp.com>
Cc:     Fabio Estevam <festevam@gmail.com>,
        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@vger.kernel.org>,
        Sascha Hauer <kernel@pengutronix.de>
Subject: Re: ctr(aes) broken in CAAM driver
Message-ID: <20190612094050.6esonhumzv2ywhdh@pengutronix.de>
References: <20190515130746.cvhkxxffrmmynfq3@pengutronix.de>
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Hi Horia,

On Wed, May 15, 2019 at 01:35:16PM +0000, Horia Geanta wrote:
> For talitos, the problem is the lack of IV update.
> 
> For caam, the problem is incorrect IV update (output IV is equal to last
> ciphertext block, which is correect for cbc, but not for ctr mode).
> 
> I am working at a fix, but it takes longer since I would like to program the
> accelerator to the save the IV (and not do counter increment in SW, which
> created problems for many other implementations).

Any news here? With the fix Ard provided gcm(aes) now works again, but
only as long as the crypto self tests are disabled.

Sascha

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