From: Joel Fernandes Subject: [PATCH] crypto: omap-aes: Fix CTR mode counter length Date: Tue, 29 Oct 2013 17:37:38 -0500 Message-ID: <1383086258-22186-1-git-send-email-joelf@ti.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , Herbert Xu , Joel Fernandes To: Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org 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 --- drivers/crypto/omap-aes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index ce791c2..19055a1 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -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) -- 1.8.1.2