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authorHerbert Xu <herbert@gondor.apana.org.au>2016-09-07 18:42:08 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-09-13 18:44:57 +0800
commit53a5d5ddccf849dbc27a8c1bba0b43c3a45fb792 (patch)
tree95635f9a1b03ca963f3758a4ffbcf5f4f94cc515 /drivers/sbus
parent0bd2223594a4dcddc1e34b15774a3a4776f7749e (diff)
downloadlinux-53a5d5ddccf849dbc27a8c1bba0b43c3a45fb792.tar.bz2
crypto: echainiv - Replace chaining with multiplication
The current implementation uses a global per-cpu array to store data which are used to derive the next IV. This is insecure as the attacker may change the stored data. This patch removes all traces of chaining and replaces it with multiplication of the salt and the sequence number. Fixes: a10f554fa7e0 ("crypto: echainiv - Add encrypted chain IV...") Cc: stable@vger.kernel.org Reported-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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