diff options
| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2020-03-19 19:12:32 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-03-30 03:50:50 +0300 |
| commit | 358ba762d9f1d4ba99ab31ef12bc28014b22f4c9 (patch) | |
| tree | 0936b8c327d7c7c465cd19424908376eee572b68 /drivers/crypto/caam/desc.h | |
| parent | 0544cb75bd7df357c1758b760ecc7709125c139a (diff) | |
| download | linux-358ba762d9f1d4ba99ab31ef12bc28014b22f4c9.tar.xz | |
crypto: caam - enable prediction resistance in HRWNG
Instantiate CAAM RNG with prediction resistance enabled to improve its
quality (with PR on DRNG is forced to reseed from TRNG every time
random data is generated).
Management Complex firmware with version lower than 10.20.0
doesn't provide prediction resistance support. Consider this
and only instantiate rng when mc f/w version is lower.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Andrei Botila <andrei.botila@nxp.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Iuliana Prodan <iuliana.prodan@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-imx@nxp.com
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam/desc.h')
| -rw-r--r-- | drivers/crypto/caam/desc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h index 4b6854bf896a..e796d3cb9be8 100644 --- a/drivers/crypto/caam/desc.h +++ b/drivers/crypto/caam/desc.h @@ -1254,6 +1254,8 @@ #define OP_ALG_ICV_OFF (0 << OP_ALG_ICV_SHIFT) #define OP_ALG_ICV_ON (1 << OP_ALG_ICV_SHIFT) +#define OP_ALG_PR_ON BIT(1) + #define OP_ALG_DIR_SHIFT 0 #define OP_ALG_DIR_MASK 1 #define OP_ALG_DECRYPT 0 |