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authorHerbert Xu <herbert@gondor.apana.org.au>2006-07-30 11:53:01 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-21 11:41:50 +1000
commit6d7d684d635ac5a345f075015f2c84169c111c6a (patch)
tree9a1b397fe8db3c14cc69880aba747e50c1a1faa2 /crypto/digest.c
parent65b75c36f4e8422602826c75c803136e0da94122 (diff)
[CRYPTO] api: Added crypto_alloc_base
Up until now all crypto transforms have been of the same type, struct crypto_tfm, regardless of whether they are ciphers, digests, or other types. As a result of that, we check the types at run-time before each crypto operation. This is rather cumbersome. We could instead use different C types for each crypto type to ensure that the correct types are used at compile time. That is, we would have crypto_cipher/crypto_digest instead of just crypto_tfm. The appropriate type would then be required for the actual operations such as crypto_digest_digest. Now that we have the type/mask fields when looking up algorithms, it is easy to request for an algorithm of the precise type that the user wants. However, crypto_alloc_tfm currently does not expose these new attributes. This patch introduces the function crypto_alloc_base which will carry these new parameters. It will be renamed to crypto_alloc_tfm once all existing users have been converted. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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