Eric Biggers 646b7d4f2c fscrypt: only derive the needed portion of the key ... Currently the key derivation function in fscrypt uses the master key length as the amount of output key material to derive. This works, but it means we can waste time deriving more key material than is actually used, e.g. most commonly, deriving 64 bytes for directories which only take a 32-byte AES-256-CTS-CBC key. It also forces us to validate that the master key length is a multiple of AES_BLOCK_SIZE, which wouldn't otherwise be necessary. Fix it to only derive the needed length key. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2018-05-20 16:21:05 -04:00
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bio.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
crypto.c	fscrypt: use a common logging function	2018-05-20 16:21:05 -04:00
fname.c	fscrypt: use a common logging function	2018-05-20 16:21:05 -04:00
fscrypt_private.h	fscrypt: use a common logging function	2018-05-20 16:21:05 -04:00
hooks.c	fscrypt: use a common logging function	2018-05-20 16:21:05 -04:00
Kconfig	fscrypt: add support for AES-128-CBC	2017-06-23 20:05:07 -04:00
keyinfo.c	fscrypt: only derive the needed portion of the key	2018-05-20 16:21:05 -04:00
Makefile	fscrypt: new helper function - fscrypt_file_open()	2017-10-18 19:52:37 -04:00
policy.c	fscrypt: lots of cleanups, mostly courtesy by Eric Biggers	2017-11-14 11:35:15 -08:00