Don't erase key:
If key is erased before the crypto_finalize_.*_request() call, some
pending process will run with a key={ 0 }.
Moreover if the key is reset at end of request, it breaks xts chaining
mode, as for last xts block (in case input len is not a multiple of
block) a new AES request is started without calling again set_key().
Fixes: 9e054ec21ef8 ("crypto: stm32 - Support for STM32 CRYP crypto module")
Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@xxxxxxxxxxx>
---
drivers/crypto/stm32/stm32-cryp.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index ab4a107a0860..b2b553651964 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -674,8 +674,6 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err)
else
crypto_finalize_skcipher_request(cryp->engine, cryp->req,
err);
-
- memset(cryp->ctx->key, 0, cryp->ctx->keylen);
}
static int stm32_cryp_cpu_start(struct stm32_cryp *cryp)
--
2.17.1
