linux-stable.git/crypto/echainiv.c, branch v4.2

crypto: echainiv - Only hold RNG during initialisation

2015-06-22T07:49:29+00:00

This patch changes the RNG allocation so that we only hold a
reference to the RNG during initialisation.

Signed-off-by: Herbert Xu

crypto: echainiv - Move IV seeding into init function

2015-06-04T07:05:00+00:00

We currently do the IV seeding on the first givencrypt call in
order to conserve entropy.  However, this does not work with
DRBG which cannot be called from interrupt context.  In fact,
with DRBG we don't need to conserve entropy anyway.  So this
patch moves the seeding into the init function.

Signed-off-by: Herbert Xu

crypto: echainiv - Fix IV size in context size calculation

2015-05-28T03:23:18+00:00

This patch fixes a bug in the context size calculation where we
were still referring to the old cra_aead.

Signed-off-by: Herbert Xu

crypto: echainiv - Use common IV generation code

2015-05-28T03:23:18+00:00

This patch makes use of the new common IV generation code.

Signed-off-by: Herbert Xu

crypto: echainiv - Copy AD along with plain text

2015-05-28T03:23:18+00:00

As the AD does not necessarily exist in the destination buffer
it must be copied along with the plain text.

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: echainiv - Stop using cryptoff

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

The cryptoff parameter was added to facilitate the skipping of
IVs that sit between the AD and the plain/cipher text.  However,
it was never implemented correctly as and we do not handle users
such as IPsec setting cryptoff.  It is simply ignored.

Implementing correctly is in fact more trouble than what it's
worth.

This patch removes the uses of cryptoff and simply falls back
to using the old AEAD interface as it's only needed for old AEAD
implementations.

Signed-off-by: Herbert Xu

crypto: echainiv - Use aead_register_instance

2015-05-25T10:41:30+00:00

New style AEAD instances must use aead_register_instance.  This
worked by chance because aead_geniv_alloc is still setting things
the old way.

This patch converts the template over to the create model where
we are responsible for instance registration so that we can call
the correct function.

Signed-off-by: Herbert Xu

crypto: echainiv - echainiv_read_iv() can be static

2015-05-25T10:41:28+00:00

Signed-off-by: Fengguang Wu 
Signed-off-by: Herbert Xu

crypto: echainiv - Add encrypted chain IV generator

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

This patch adds a new AEAD IV generator echainiv.  It is intended
to replace the existing skcipher IV generator eseqiv.

If the underlying AEAD algorithm is using the old AEAD interface,
then echainiv will simply use its IV generator.

Otherwise, echainiv will encrypt a counter just like eseqiv but
it'll first xor it against a previously stored IV similar to
chainiv.

Signed-off-by: Herbert Xu