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crypto: omap-aes - Fix CTR mode counter length 

NIST vectors for CTR mode in testmgr.h assume the entire IV as the counter. To
get correct results that match the output of these vectors, we need to set the
counter length correctly.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Joel Fernandes 2013-10-29 17:37:38 -05:00 committed by Herbert Xu
parent 718249d7f0
commit 8ed49c7675
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/omap-aes.c
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@ -275,7 +275,7 @@ static int omap_aes_write_ctrl(struct omap_aes_dev *dd)
if (dd->flags & FLAGS_CBC)
val |= AES_REG_CTRL_CBC;
if (dd->flags & FLAGS_CTR) {
val |= AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_32;
val |= AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_128;
mask = AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_MASK;
}
if (dd->flags & FLAGS_ENCRYPT)