colin/u-boot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypto/fsl: instantiate the RNG with prediciton resistance

Browse Source 
If it is already instantiated tear it down first and then reinstanciate
it again with prediction resistance.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Michael Walle
2020-06-27 22:58:52 +02:00
committed by Priyanka Jain
parent c269a970f2
commit b980f9e259
5 changed files with 79 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/fsl_sec.h
View File

@@ -65,10 +65,9 @@ struct rng4tst {
u32 rtfreqcnt; /* PRGM=0: freq. count register */
};
u32 rsvd1[40];
#define RNG_STATE0_HANDLE_INSTANTIATED 0x00000001
#define RNG_STATE1_HANDLE_INSTANTIATED 0x00000002
#define RNG_STATE_HANDLE_MASK \
(RNG_STATE0_HANDLE_INSTANTIATED | RNG_STATE1_HANDLE_INSTANTIATED)
#define RDSTA_IF(idx) (0x00000001 << (idx))
#define RDSTA_PR(idx) (0x00000010 << (idx))
#define RDSTA_MASK (RDSTA_PR(1) | RDSTA_PR(0) | RDSTA_IF(1) | RDSTA_IF(0))
#define RDSTA_SKVN 0x40000000
u32 rdsta; /*RNG DRNG Status Register*/
u32 rsvd2[15];