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| author |   Herbert Xu <herbert@gondor.apana.org.au> | 2007-12-02 18:49:21 +1100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2008-01-11 08:16:29 +1100 |
| commit | 7ba683a6deba70251756aa5a021cdaa5c875a7a2 (patch) | |
| tree | 80f63039b56bef0287fdf878163a5fe109821e58 /include/linux/crypto.h | |
| parent | [CRYPTO] authenc: Use or instead of max on alignment masks (diff) | |
| download | linux-dev-7ba683a6deba70251756aa5a021cdaa5c875a7a2.tar.xz linux-dev-7ba683a6deba70251756aa5a021cdaa5c875a7a2.zip | |
[CRYPTO] aead: Make authsize a run-time parameter
As it is authsize is an algorithm paramter which cannot be changed at
run-time. This is inconvenient because hardware that implements such
algorithms would have to register each authsize that they support
separately.
Since authsize is a property common to all AEAD algorithms, we can add
a function setauthsize that sets it at run-time, just like setkey.
This patch does exactly that and also changes authenc so that authsize
is no longer a parameter of its template.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/linux/crypto.h')
| -rw-r--r-- | include/linux/crypto.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/crypto.h b/include/linux/crypto.h index f56ae8721bc9..48aa5959abbb 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -187,11 +187,12 @@ struct ablkcipher_alg { struct aead_alg { int (*setkey)(struct crypto_aead *tfm, const u8 *key, unsigned int keylen); + int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize); int (*encrypt)(struct aead_request *req); int (*decrypt)(struct aead_request *req); unsigned int ivsize; - unsigned int authsize; + unsigned int maxauthsize; }; struct blkcipher_alg { @@ -754,6 +755,8 @@ static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key, return crypto_aead_crt(tfm)->setkey(tfm, key, keylen); } +int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize); + static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req) { return __crypto_aead_cast(req->base.tfm); |