4 Commits

Author	SHA1	Message	Date
Herbert Xu	46f8153cc5	[CRYPTO] eseqiv: Fix off-by-one encryption ... After attaching the IV to the head during encryption, eseqiv does not increase the encryption length by that amount. As such the last block of the actual plain text will be left unencrypted. Fortunately the only user of this code hifn currently crashes so this shouldn't affect anyone :) Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>	2008-05-01 18:22:28 +08:00
Herbert Xu	f13ba2f7d3	[CRYPTO] skcipher: Fix section mismatches ... The previous patch to move chainiv and eseqiv into blkcipher created a section mismatch for the chainiv exit function which was also called from __init. This patch removes the __exit marking on it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>	2008-03-08 20:29:43 +08:00
Herbert Xu	76fc60a2e3	[CRYPTO] skcipher: Move chainiv/seqiv into crypto_blkcipher module ... For compatibility with dm-crypt initramfs setups it is useful to merge chainiv/seqiv into the crypto_blkcipher module. Since they're required by most algorithms anyway this is an acceptable trade-off. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>	2008-02-23 11:12:06 +08:00
Herbert Xu	806d183aa6	[CRYPTO] eseqiv: Add Encrypted Sequence Number IV Generator ... This generator generates an IV based on a sequence number by xoring it with a salt and then encrypting it with the same key as used to encrypt the plain text. This algorithm requires that the block size be equal to the IV size. It is mainly useful for CBC. It has one noteworthy property that for IPsec the IV happens to lie just before the plain text so the IV generation simply increases the number of encrypted blocks by one. Therefore the cost of this generator is entirely dependent on the speed of the underlying cipher. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>	2008-01-11 08:16:45 +11:00