linux/include/crypto
Herbert Xu 3c09f17c3d [CRYPTO] aead: Add authenc
This patch adds the authenc algorithm which constructs an AEAD algorithm
from an asynchronous block cipher and a hash.  The construction is done
by concatenating the encrypted result from the cipher with the output
from the hash, as is used by the IPsec ESP protocol.

The authenc algorithm exists as a template with four parameters:

	authenc(auth, authsize, enc, enckeylen).

The authentication algorithm, the authentication size (i.e., truncating
the output of the authentication algorithm), the encryption algorithm,
and the encryption key length.  Both the size field and the key length
field are in bytes.  For example, AES-128 with SHA1-HMAC would be
represented by

	authenc(hmac(sha1), 12, cbc(aes), 16)

The key for the authenc algorithm is the concatenation of the keys for
the authentication algorithm with the encryption algorithm.  For the
above example, if a key of length 36 bytes is given, then hmac(sha1)
would receive the first 20 bytes while the last 16 would be given to
cbc(aes).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-10-10 16:55:43 -07:00
..
algapi.h [CRYPTO] aead: Add authenc 2007-10-10 16:55:43 -07:00
b128ops.h [CRYPTO] lib: some common 128-bit block operations, nicely centralized 2006-12-06 18:38:55 -08:00
gf128mul.h [CRYPTO] lib: table driven multiplications in GF(2^128) 2006-12-06 18:38:55 -08:00
twofish.h [CRYPTO] api: Get rid of flags argument to setkey 2006-09-21 11:41:02 +10:00