From: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Date: Thu, 29 Aug 2013 14:36:38 +0000 (-0300)
Subject: crypto: nx - fix XCBC for zero length messages
X-Git-Tag: v3.12-rc1~108^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41e3173daf4e2d2f2dcc48ae7ffc8d0c4f3ecec9;p=pandora-kernel.git

crypto: nx - fix XCBC for zero length messages

The NX XCBC implementation doesn't support zero length messages and
because of that NX is currently returning a hard-coded hash for zero
length messages. However this approach is incorrect since the hash value
also depends on which key is used.

This patch removes the hard-coded hash and replace it with an
implementation based on the RFC 3566 using ECB.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

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