linux-kernel - AW: [PATCH] crypto: caam: do not register AES-XTS mode on LP units

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Date:   Mon, 7 Nov 2016 18:58:15 +0100
From:   "Sven Ebenfeld" <sven.ebenfeld@...il.com>
To:     "'Horia Geanta Neag'" <horia.geanta@....com>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Cc:     <herbert@...dor.apana.org.au>, <davem@...emloft.net>,
        "'Cata Vasile'" <cata.vasile@....com>
Subject: AW: [PATCH] crypto: caam: do not register AES-XTS mode on LP units

> -----Ursprüngliche Nachricht-----
> Von: Horia Geanta Neag [mailto:horia.geanta@....com]
> Gesendet: Montag, 7. November 2016 08:14
> An: Sven Ebenfeld <sven.ebenfeld@...il.com>; linux-
> crypto@...r.kernel.org; linux-kernel@...r.kernel.org
> Cc: herbert@...dor.apana.org.au; davem@...emloft.net; Cata Vasile
> <cata.vasile@....com>
> Betreff: Re: [PATCH] crypto: caam: do not register AES-XTS mode on LP
units
> 
> On 11/5/2016 1:17 AM, Sven Ebenfeld wrote:
> > When using AES-XTS on a Wandboard, we receive a Mode error:
> > caam_jr 2102000.jr1: 20001311: CCB: desc idx 19: AES: Mode error.
> >
> > Due to the Security Reference Manual, the Low Power AES units
> s/Due to/According to
> 
> > of the i.MX6 do not support the XTS mode. Therefore we should try to
> > provide them them in the API.
> >
> Rephrase: Therefore we mustn't register XTS implementations to Crypto API
> in this case.
> 
> > Signed-off-by: Sven Ebenfeld <sven.ebenfeld@...il.com>
> Reviewed-by: Horia Geantă <horia.geanta@....com>
> 
> Please send the patch to -stable and mention the offending commit:
> Cc: <stable@...r.kernel.org> # 4.4+
> Fixes: c6415a6016bf "crypto: caam - add support for acipher xts(aes)"
> 
> Thanks,
> Horia

Thanks, I've sent a v2.
Sven


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