From: Kent Yoder <key@linux.vnet.ibm.com>
Date: Thu, 5 Apr 2012 12:34:20 +0000 (+0800)
Subject: crypto: sha512 - Fix byte counter overflow in SHA-512
X-Git-Tag: v3.2.17~168
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eea1acbaf0cd548972b40827c37667dcfdf5cbe5;p=pandora-kernel.git

crypto: sha512 - Fix byte counter overflow in SHA-512

commit 25c3d30c918207556ae1d6e663150ebdf902186b upstream.

The current code only increments the upper 64 bits of the SHA-512 byte
counter when the number of bytes hashed happens to hit 2^64 exactly.

This patch increments the upper 64 bits whenever the lower 64 bits
overflows.

Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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