linux-stable.git/crypto/aead.c, branch v4.2.4

crypto: aead - Add multiple algorithm registration interface

2015-06-03T02:48:35+00:00

This patch adds the helpers that allow the registration and removal
of multiple algorithms.

Signed-off-by: Herbert Xu

crypto: aead - Ignore return value from crypto_unregister_alg

2015-06-03T02:48:34+00:00

No new code should be using the return value of crypto_unregister_alg
as it will become void soon.

Signed-off-by: Herbert Xu

crypto: aead - Add type-safe init/exit functions

2015-06-03T02:48:33+00:00

As it stands the only non-type safe functions left in the new
AEAD interface are the cra_init/cra_exit functions.  It means
exposing the ugly __crypto_aead_cast to every AEAD implementor.

This patch adds type-safe init/exit functions to AEAD.  Existing
algorithms are unaffected while new implementations can simply
fill in these two instead of cra_init/cra_exit.

Signed-off-by: Herbert Xu

crypto: aead - Add common IV generation code

2015-05-28T03:23:17+00:00

This patch adds some common IV generation code currently duplicated
by seqiv and echainiv.  For example, the setkey and setauthsize
functions are completely identical.

Signed-off-by: Herbert Xu

crypto: aead - Preserve in-place processing in old_crypt

2015-05-28T03:23:17+00:00

This patch tries to preserve in-place processing in old_crypt as
various algorithms are optimised for in-place processing where
src == dst.

Signed-off-by: Herbert Xu

crypto: aead - Remove unused cryptoff parameter

2015-05-25T10:41:32+00:00

This patch removes the cryptoff parameter now that all users
set it to zero.

Signed-off-by: Herbert Xu

crypto: aead - Do not set cra_type for new style instances

2015-05-25T10:41:31+00:00

The function aead_geniv_alloc currently sets cra_type even for
new style instances.  This is unnecessary and may hide bugs such
as when our caller uses crypto_register_instance instead of the
correct aead_register_instance.

Signed-off-by: Herbert Xu

crypto: aead - Use tmpl->create

2015-05-25T10:41:29+00:00

Newer templates use tmpl->create and have a NULL tmpl->alloc.  So
we must use tmpl->create if it is set.

Signed-off-by: Herbert Xu

crypto: aead - Add crypto_aead_alg_ivsize/maxauthsize

2015-05-25T10:41:25+00:00

AEAD algorithm implementors need to figure out a given algorithm's
IV size and maximum authentication size.  During the transition
this is difficult to do as an algorithm could be new style or old
style.

This patch creates two helpers to make this easier.

Signed-off-by: Herbert Xu

crypto: seqiv - Add support for new AEAD interface

2015-05-22T03:25:56+00:00

This patch converts the seqiv IV generator to work with the new
AEAD interface where IV generators are just normal AEAD algorithms.

Full backwards compatibility is paramount at this point since
no users have yet switched over to the new interface.  Nor can
they switch to the new interface until IV generation is fully
supported by it.

So this means we are adding two versions of seqiv alongside the
existing one.  The first one is the one that will be used when
the underlying AEAD algorithm has switched over to the new AEAD
interface.  The second one handles the current case where the
underlying AEAD algorithm still uses the old interface.

Both versions export themselves through the new AEAD interface.

Signed-off-by: Herbert Xu