tree 7ed61814485e0d054cc982bf1b9fbf84365582a2
parent 2b188b3b86005ca63eb851a1992f06b9a301f800
author Marcelo Cerri <mhcerri@linux.vnet.ibm.com> 1377786998 -0300
committer Herbert Xu <herbert@gondor.apana.org.au> 1378117975 +1000

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>