diff options
| author | Daniele Alessandrelli <daniele.alessandrelli@intel.com> | 2020-12-16 11:46:37 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-01-03 08:41:36 +1100 |
| commit | ae832e329a8d17144e5ae625e1704901f0e0b024 (patch) | |
| tree | a29f22148e8fb1a9391bf0e6b3c72e700de41038 /drivers/crypto/keembay/ocs-hcu.h | |
| parent | 472b04444cd39e16ba54987b2e901a79cf175463 (diff) | |
crypto: keembay-ocs-hcu - Add HMAC support
Add HMAC support to the Keem Bay OCS HCU driver, thus making it provide
the following additional transformations:
- hmac(sha256)
- hmac(sha384)
- hmac(sha512)
- hmac(sm3)
The Keem Bay OCS HCU hardware does not allow "context-switch" for HMAC
operations, i.e., it does not support computing a partial HMAC, save its
state and then continue it later. Therefore, full hardware acceleration
is provided only when possible (e.g., when crypto_ahash_digest() is
called); in all other cases hardware acceleration is only partial (OPAD
and IPAD calculation is done in software, while hashing is hardware
accelerated).
Co-developed-by: Declan Murphy <declan.murphy@intel.com>
Signed-off-by: Declan Murphy <declan.murphy@intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/keembay/ocs-hcu.h')
| -rw-r--r-- | drivers/crypto/keembay/ocs-hcu.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/crypto/keembay/ocs-hcu.h b/drivers/crypto/keembay/ocs-hcu.h index 6a467dcaf99c..fbbbb92a0592 100644 --- a/drivers/crypto/keembay/ocs-hcu.h +++ b/drivers/crypto/keembay/ocs-hcu.h @@ -95,4 +95,12 @@ int ocs_hcu_hash_final(struct ocs_hcu_dev *hcu_dev, const struct ocs_hcu_hash_ctx *ctx, u8 *dgst, size_t dgst_len); +int ocs_hcu_digest(struct ocs_hcu_dev *hcu_dev, enum ocs_hcu_algo algo, + void *data, size_t data_len, u8 *dgst, size_t dgst_len); + +int ocs_hcu_hmac(struct ocs_hcu_dev *hcu_dev, enum ocs_hcu_algo algo, + const u8 *key, size_t key_len, + const struct ocs_hcu_dma_list *dma_list, + u8 *dgst, size_t dgst_len); + #endif /* _CRYPTO_OCS_HCU_H */ |