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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2023-04-13 09:24:19 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-04-20 13:20:04 +0300 |
| commit | ed3630b83e9394acef27041de7a2223f1e875e9a (patch) | |
| tree | 9f18ad66b747c4a5a9698a61444f2509eefd1756 /crypto/hash.h | |
| parent | 3c3a24cb0ae46c9c45e4ce2272f84f0504831f59 (diff) | |
| download | linux-ed3630b83e9394acef27041de7a2223f1e875e9a.tar.xz | |
crypto: hash - Add crypto_clone_ahash/shash
This patch adds the helpers crypto_clone_ahash and crypto_clone_shash.
They are the hash-specific counterparts of crypto_clone_tfm.
This allows code paths that cannot otherwise allocate a hash tfm
object to do so. Once a new tfm has been obtained its key could
then be changed without impacting other users.
Note that only algorithms that implement clone_tfm can be cloned.
However, all keyless hashes can be cloned by simply reusing the
tfm object.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/hash.h')
| -rw-r--r-- | crypto/hash.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/hash.h b/crypto/hash.h index 57b28a986d69..7e6c1a948692 100644 --- a/crypto/hash.h +++ b/crypto/hash.h @@ -31,6 +31,10 @@ static inline int crypto_hash_report_stat(struct sk_buff *skb, return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash); } +int crypto_init_shash_ops_async(struct crypto_tfm *tfm); +struct crypto_ahash *crypto_clone_shash_ops_async(struct crypto_ahash *nhash, + struct crypto_ahash *hash); + int hash_prepare_alg(struct hash_alg_common *alg); #endif /* _LOCAL_CRYPTO_HASH_H */ |