linux.git/crypto/authenc.c, branch v2.6.35-rc4

crypto: authenc - Fix cryptlen calculation

2010-05-20T09:40:31+00:00

This patch (applied against 2.6.34) fixes the calculation of the
length of the ABLKCIPHER decrypt request ("cryptlen") after an
asynchronous hash request has been completed in the AUTHENC interface.

Signed-off-by: Shikhar Khattar 
Signed-off-by: Herbert Xu

crypto: authenc - Add EINPROGRESS check

2010-04-26T01:14:05+00:00

When Steffen originally wrote the authenc async hash patch, he
correctly had EINPROGRESS checks in place so that we did not invoke
the original completion handler with it.

Unfortuantely I told him to remove it before the patch was applied.

As only MAY_BACKLOG request completion handlers are required to
handle EINPROGRESS completions, those checks are really needed.

This patch restores them.

Reported-by: Sebastian Andrzej Siewior 
Signed-off-by: Herbert Xu

crypto: authenc - Move saved IV in front of the ablkcipher request

2010-03-03T14:41:08+00:00

In crypto_authenc_encrypt() we save the IV behind the ablkcipher
request. To save space on the request, we overwrite the ablkcipher
request with a ahash request after encryption. So the IV may be
overwritten by the ahash request. This patch fixes this by placing
the IV in front of the ablkcipher/ahash request.

Signed-off-by: Steffen Klassert 
Signed-off-by: Herbert Xu

crypto: authenc - Use correct ahash complete functions

2010-03-02T13:59:54+00:00

We accidentally assigned the ahash update complete function to
the wrong function pointer in crypto_authenc_verify.
This patch fixes this.

Signed-off-by: Steffen Klassert 
Signed-off-by: Herbert Xu

crypto: authenc - Fix checkpatch errors

2010-02-16T12:27:20+00:00

Signed-off-by: Richard Hartmann 
Signed-off-by: Herbert Xu

crypto: authenc - Convert to ahash

2009-08-05T09:35:34+00:00

This patch converts authenc to the new ahash interface.

Signed-off-by: Steffen Klassert 
Signed-off-by: Herbert Xu

crypto: authenc - Remove reference to crypto_hash

2009-07-14T04:58:07+00:00

Now that there are no more legacy hash implementations we can
remove the reference to crypto_hash.

Signed-off-by: Herbert Xu

crypto: authenc - Fix zero-length IV crash

2009-01-15T04:33:49+00:00

As it is if an algorithm with a zero-length IV is used (e.g.,
NULL encryption) with authenc, authenc may generate an SG entry
of length zero, which will trigger a BUG check in the hash layer.

This patch fixes it by skipping the IV SG generation if the IV
size is zero.

Signed-off-by: Herbert Xu

crypto: hash - Export shash through hash

2008-12-25T00:01:33+00:00

This patch allows shash algorithms to be used through the old hash
interface.  This is a transitional measure so we can convert the
underlying algorithms to shash before converting the users across.

Signed-off-by: Herbert Xu

crypto: authenc - Avoid using clobbered request pointer

2008-08-22T15:04:06+00:00

Authenc works in two stages for encryption, it first encrypts and
then computes an ICV.  The context memory of the request is used
by both operations.  The problem is that when an asynchronous
encryption completes, we will compute the ICV and then reread the
context memory of the encryption to get the original request.

It just happens that we have a buffer of 16 bytes in front of the
request pointer, so ICVs of 16 bytes (such as SHA1) do not trigger
the bug.  However, any attempt to uses a larger ICV instantly kills
the machine when the first asynchronous encryption is completed.

This patch fixes this by saving the request pointer before we start
the ICV computation.

Signed-off-by: Herbert Xu