From: Neil Horman Date: Wed, 28 Jan 2009 04:20:51 +0000 (+1100) Subject: crypto: ansi_cprng - Force reset on allocation X-Git-Tag: v2.6.30-rc1~677^2~23 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7992f42c61d5dc6d164f7dddd05284485204ada;p=pandora-kernel.git crypto: ansi_cprng - Force reset on allocation 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 Signed-off-by: Herbert Xu --- Reading git-diff-tree failed