[PATCH 0/9] crypto: fix alignmask handling

[Ard Biesheuvel <ardb@kernel.org>]

Some generic implementations of vintage ciphers rely on alignmasks to
ensure that the input is presented with the right alignment. Given that
these are all C implementations, which may execute on architectures that
don't care about alignment in the first place, it is better to use the
unaligned accessors, which will deal with the misalignment in a way that
is appropriate for the architecture in question (and in many cases, this
means simply ignoring the misalignment, as the hardware doesn't care either)

So fix this across a number of implementations. Patch #1 stands out because
michael_mic.c was broken in spite of the alignmask. Patch #2 removes tnepres
instead of updating it, given that there is no point in keeping it.

The remaining patches all update generic ciphers that are outdated but still
used, and which are the only implementations available on most architectures
other than x86.



Ard Biesheuvel (9):
  crypto: michael_mic - fix broken misalignment handling
  crypto: serpent - get rid of obsolete tnepres variant
  crypto: serpent - use unaligned accessors instead of alignmask
  crypto: blowfish - use unaligned accessors instead of alignmask
  crypto: camellia - use unaligned accessors instead of alignmask
  crypto: cast5 - use unaligned accessors instead of alignmask
  crypto: cast6 - use unaligned accessors instead of alignmask
  crypto: fcrypt - drop unneeded alignmask
  crypto: twofish - use unaligned accessors instead of alignmask

 crypto/Kconfig            |   3 +-
 crypto/blowfish_generic.c |  23 ++--
 crypto/camellia_generic.c |  45 +++----
 crypto/cast5_generic.c    |  23 ++--
 crypto/cast6_generic.c    |  39 +++---
 crypto/fcrypt.c           |   1 -
 crypto/michael_mic.c      |  31 ++---
 crypto/serpent_generic.c  | 126 ++++----------------
 crypto/tcrypt.c           |   6 +-
 crypto/testmgr.c          |   6 -
 crypto/testmgr.h          |  79 ------------
 crypto/twofish_generic.c  |  11 +-
 12 files changed, 90 insertions(+), 303 deletions(-)

-- 
2.20.1