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crypto: nx - saves chaining value from co-processor 

This patch fixes a bug that is triggered when cts(cbc(aes)) is used with
nx-crypto driver on input larger than 32 bytes.

The chaining value from co-processor was not being saved. This value is
needed because it is used as the IV by cts(cbc(aes)).

Signed-off-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
hifive-unleashed-5.1
Fionnuala Gunter 2013-08-07 18:15:50 -05:00 committed by Herbert Xu
parent e83872c989
commit cc76daf793
1 changed files with 1 additions and 0 deletions
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drivers/crypto/nx/nx-aes-cbc.c
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@ -95,6 +95,7 @@ static int cbc_aes_nx_crypt(struct blkcipher_desc *desc,
if (rc)
goto out;
memcpy(desc->info, csbcpb->cpb.aes_cbc.cv, AES_BLOCK_SIZE);
atomic_inc(&(nx_ctx->stats->aes_ops));
atomic64_add(csbcpb->csb.processed_byte_count,
&(nx_ctx->stats->aes_bytes));