OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

crypto: inside-secure - rework the alg type settings in the context 

This patches reworks the way the algorithm type is set in the context,
by using the fact that the decryption algorithms are just a combination
of the algorithm encryption type and CONTEXT_CONTROL_TYPE_NULL_IN.

This will help having simpler code when adding the AEAD support, to
avoid ending up with an endless switch case block.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Antoine Tenart 2018-05-14 15:10:57 +02:00 committed by Herbert Xu
parent 8ac1283e4a
commit 3a5ca230bb
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/crypto/inside-secure/safexcel_cipher.c
View File

@ -104,10 +104,13 @@ static int safexcel_context_control(struct safexcel_cipher_ctx *ctx,
struct safexcel_crypto_priv *priv = ctx->priv;
int ctrl_size;
if (sreq->direction == SAFEXCEL_ENCRYPT)
cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_CRYPTO_OUT;
else
cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_CRYPTO_IN;
cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_CRYPTO_OUT;
/* The decryption control type is a combination of the encryption type
* and CONTEXT_CONTROL_TYPE_NULL_IN, for all types.
*/
if (sreq->direction == SAFEXCEL_DECRYPT)
cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_NULL_IN;
cdesc->control_data.control0 |= CONTEXT_CONTROL_KEY_EN;
cdesc->control_data.control1 |= ctx->mode;