From: Neil Horman Date: Thu, 18 Jun 2009 11:50:21 +0000 (+0800) Subject: random: Add optional continuous repetition test to entropy store based rngs X-Git-Tag: v2.6.32-rc1~731^2~101 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5b739ef8a4e8cf5201d21abff897e292c232477b;p=pandora-kernel.git random: Add optional continuous repetition test to entropy store based rngs FIPS-140 requires that all random number generators implement continuous self tests in which each extracted block of data is compared against the last block for repetition. The ansi_cprng implements such a test, but it would be nice if the hw rng's did the same thing. Obviously its not something thats always needed, but it seems like it would be a nice feature to have on occasion. I've written the below patch which allows individual entropy stores to be flagged as desiring a continuous test to be run on them as is extracted. By default this option is off, but is enabled in the event that fips mode is selected during bootup. Signed-off-by: Neil Horman Acked-by: Matt Mackall Signed-off-by: Herbert Xu --- Reading git-diff-tree failed