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| author | Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com> | 2022-04-29 14:48:08 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-05-06 13:16:55 +0300 |
| commit | 0aa6ac7795cab3d8bcf3209d77459d595f4843da (patch) | |
| tree | afcf56b3b73ff7842cd5a60b9e28d865170bffc4 /drivers/crypto/caam/intern.h | |
| parent | 25dfae684031f292034a0f42155090df6309f152 (diff) | |
| download | linux-0aa6ac7795cab3d8bcf3209d77459d595f4843da.tar.xz | |
crypto: caam/rng - Add support for PRNG
Add support for random number generation using PRNG
mode of CAAM and expose the interface through crypto API.
According to the RM, the HW implementation of the DRBG follows
NIST SP 800-90A specification for DRBG_Hash SHA-256 function
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Reviewed-by: Horia Geant <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam/intern.h')
| -rw-r--r-- | drivers/crypto/caam/intern.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h index 7d45b21bd55a..c2f51365df1b 100644 --- a/drivers/crypto/caam/intern.h +++ b/drivers/crypto/caam/intern.h @@ -185,6 +185,21 @@ static inline void caam_rng_exit(struct device *dev) {} #endif /* CONFIG_CRYPTO_DEV_FSL_CAAM_RNG_API */ +#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_PRNG_API + +int caam_prng_register(struct device *dev); +void caam_prng_unregister(void *data); + +#else + +static inline int caam_prng_register(struct device *dev) +{ + return 0; +} + +static inline void caam_prng_unregister(void *data) {} +#endif /* CONFIG_CRYPTO_DEV_FSL_CAAM_PRNG_API */ + #ifdef CONFIG_CAAM_QI int caam_qi_algapi_init(struct device *dev); |