Re: [PATCH v9 8/9] crypto: caam - enable prediction resistance in HRWNG

[Horia GeantÄ]

On 3/19/2020 6:13 PM, Andrey Smirnov wrote:
> Instantiate CAAM RNG with prediction resistance enabled to improve its
> quality (with PR on DRNG is forced to reseed from TRNG every time
> random data is generated).
> 
> Management Complex firmware with version lower than 10.20.0
> doesn't provide prediction resistance support. Consider this
> and only instantiate rng when mc f/w version is lower.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> Signed-off-by: Andrei Botila <andrei.botila@xxxxxxx>
> 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