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Date:   Thu, 6 Jun 2019 14:51:06 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Iuliana Prodan <iuliana.prodan@....com>
Cc:     Horia Geanta <horia.geanta@....com>,
        Aymen Sghaier <aymen.sghaier@....com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-imx <linux-imx@....com>
Subject: Re: [PATCH v5 1/2] crypto: caam - fix pkcs1pad(rsa-caam, sha256)
 failure because of invalid input

On Tue, May 28, 2019 at 12:52:10PM +0300, Iuliana Prodan wrote:
> The problem is with the input data size sent to CAAM for encrypt/decrypt.
> Pkcs1pad is failing due to pkcs1 padding done in SW starting with0x01
> instead of 0x00 0x01.
> CAAM expects an input of modulus size. For this we strip the leading
> zeros in case the size is more than modulus or pad the input with zeros
> until the modulus size is reached.
> 
> Signed-off-by: Iuliana Prodan <iuliana.prodan@....com>
> ---
> Changes since V4:
> 	- return -ENOMEM in case zero_buffer cannot be allocated.
> ---
>  drivers/crypto/caam/caampkc.c | 89 ++++++++++++++++++++++++++++++++++---------
>  drivers/crypto/caam/caampkc.h |  2 +
>  2 files changed, 74 insertions(+), 17 deletions(-)

All applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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