linux-kernel - Re: [PATCH v3] crypto: caam - strip input without changing crypto request

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Message-ID: <VI1PR0402MB3485EC92E27ECD4501587B4998090@VI1PR0402MB3485.eurprd04.prod.outlook.com>
Date:   Wed, 15 May 2019 14:24:00 +0000
From:   Horia Geanta <horia.geanta@....com>
To:     Iuliana Prodan <iuliana.prodan@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Aymen Sghaier <aymen.sghaier@....com>
CC:     "David S. Miller" <davem@...emloft.net>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH v3] crypto: caam - strip input without changing crypto
 request

On 5/15/2019 5:01 PM, Iuliana Prodan wrote:
> For rsa and pkcs1pad, CAAM expects an input of modulus size.
> For this we strip the leading zeros in case the size is more than modulus.
> This commit avoids modifying the crypto request while stripping zeros from
> input, to comply with the crypto API requirement. This is done by adding
> a fixup input pointer and length.
> 
> Signed-off-by: Iuliana Prodan <iuliana.prodan@....com>
Reviewed-by: Horia Geantă <horia.geanta@....com>

Herbert,

Just to avoid any confusion, this should be applied on top of
[v2,1/2] crypto: caam - fix pkcs1pad(rsa-caam, sha256) failure because of
invalid input
https://patchwork.kernel.org/patch/10944593/

Thanks,
Horia