Re: [PATCH v8 8/8] crypto: caam - limit single JD RNG output to maximum of 16 bytes

[Horia GeantÄ]

On 3/16/2020 5:01 PM, Andrey Smirnov wrote:
> In order to follow recommendation in SP800-90C (section "9.4 The
> Oversampling-NRBG Construction") limit the output of "generate" JD
> submitted to CAAM. See
> https://lore.kernel.org/linux-crypto/VI1PR0402MB3485EF10976A4A69F90E5B0F98580@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> for more details.
> 
> This change should make CAAM's hwrng driver good enough to have 1024
> quality rating.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> Cc: Chris Healy <cphealy@xxxxxxxxx>
> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Cc: Horia GeantÄ <horia.geanta@xxxxxxx>
> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> Cc: Iuliana Prodan <iuliana.prodan@xxxxxxx>
> Cc: linux-crypto@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: linux-imx@xxxxxxx
Reviewed-by: Horia GeantÄ <horia.geanta@xxxxxxx>

Thanks,
Horia