lkml.org 
[lkml]   [2009]   [Jan]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] crypto: force reset of cprng on allocation
On Fri, Jan 23, 2009 at 11:50:27AM -0500, Neil Horman wrote:
> pseudo RNGs provide predictable outputs based on input parateters {key, V, DT},
> the idea behind them is that only the user should know what the inputs are.
> While its nice to have default known values for testing purposes, it seems
> dangerous to allow the use of those default values without some sort of safety
> measure in place, lest an attacker easily guess the output of the cprng. This
> patch forces the NEED_RESET flag on when allocating a cprng context, so that any
> user is forced to reseed it before use. The defaults can still be used for
> testing, but this will prevent their inadvertent use, and be more secure.
>
> Signed-off-by: Neil Horman <nhorman@redhat.com>

Applied to cryptodev. Thanks Neil!
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt


\
 
 \ /
  Last update: 2009-01-28 05:23    [W:0.096 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site