diff options
| author | Michael Walle <michael@walle.cc> | 2020-06-27 23:58:52 +0300 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2020-07-27 11:46:29 +0300 |
| commit | b980f9e2597b52ce71247e79d534349f7d174b38 (patch) | |
| tree | 87db229d42e28fd2e81472fd05212f5760bfa39f /drivers/crypto/fsl/jobdesc.c | |
| parent | c269a970f23fabbb0d35708ff021bf2962780f9f (diff) | |
| download | u-boot-b980f9e2597b52ce71247e79d534349f7d174b38.tar.xz | |
crypto/fsl: instantiate the RNG with prediciton resistance
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>
Diffstat (limited to 'drivers/crypto/fsl/jobdesc.c')
| -rw-r--r-- | drivers/crypto/fsl/jobdesc.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/crypto/fsl/jobdesc.c b/drivers/crypto/fsl/jobdesc.c index c30ea88cb0..a8887588fc 100644 --- a/drivers/crypto/fsl/jobdesc.c +++ b/drivers/crypto/fsl/jobdesc.c @@ -266,7 +266,8 @@ void inline_cnstr_jobdesc_rng_instantiation(u32 *desc, int handle, int do_sk) /* INIT RNG in non-test mode */ append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG | - (handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INIT); + (handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INIT | + OP_ALG_PR_ON); /* For SH0, Secure Keys must be generated as well */ if (!handle && do_sk) { @@ -286,6 +287,15 @@ void inline_cnstr_jobdesc_rng_instantiation(u32 *desc, int handle, int do_sk) } } +/* Descriptor for deinstantiation of the RNG block. */ +void inline_cnstr_jobdesc_rng_deinstantiation(u32 *desc, int handle) +{ + init_job_desc(desc, 0); + + append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG | + (handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INITFINAL); +} + /* Change key size to bytes form bits in calling function*/ void inline_cnstr_jobdesc_pkha_rsaexp(uint32_t *desc, struct pk_in_params *pkin, uint8_t *out, |