linux.git/crypto/gcm.c, branch v4.16.7

crypto: null - Get rid of crypto_{get,put}_default_null_skcipher2()

2017-12-22T08:29:08+00:00

Since commit 499a66e6b689 ("crypto: null - Remove default null
blkcipher"), crypto_get_default_null_skcipher2() and
crypto_put_default_null_skcipher2() are the same as their non-2
equivalents.  So switch callers of the "2" versions over to the original
versions and remove the "2" versions.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: gcm - move to generic async completion

2017-11-03T14:11:19+00:00

gcm is starting an async. crypto op and waiting for it complete.
Move it over to generic code doing the same.

Signed-off-by: Gilad Ben-Yossef 
Signed-off-by: Herbert Xu

crypto: gcm - Use GCM IV size constant

2017-09-22T09:43:13+00:00

This patch replace GCM IV size value by their constant name.

Signed-off-by: Corentin Labbe 
Signed-off-by: Herbert Xu

crypto: gcm - wait for crypto op not signal safe

2017-05-23T04:45:11+00:00

crypto_gcm_setkey() was using wait_for_completion_interruptible() to
wait for completion of async crypto op but if a signal occurs it
may return before DMA ops of HW crypto provider finish, thus
corrupting the data buffer that is kfree'ed in this case.

Resolve this by using wait_for_completion() instead.

Reported-by: Eric Biggers 
Signed-off-by: Gilad Ben-Yossef 
CC: stable@vger.kernel.org
Signed-off-by: Herbert Xu

crypto: skcipher - Get rid of crypto_spawn_skcipher2()

2016-11-01T00:37:17+00:00

Since commit 3a01d0ee2b99 ("crypto: skcipher - Remove top-level
givcipher interface"), crypto_spawn_skcipher2() and
crypto_spawn_skcipher() are equivalent.  So switch callers of
crypto_spawn_skcipher2() to crypto_spawn_skcipher() and remove it.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: skcipher - Get rid of crypto_grab_skcipher2()

2016-11-01T00:37:16+00:00

Since commit 3a01d0ee2b99 ("crypto: skcipher - Remove top-level
givcipher interface"), crypto_grab_skcipher2() and
crypto_grab_skcipher() are equivalent.  So switch callers of
crypto_grab_skcipher2() to crypto_grab_skcipher() and remove it.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: gcm - Fix error return code in crypto_gcm_create_common()

2016-10-25T03:08:19+00:00

Fix to return error code -EINVAL from the invalid alg ivsize error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun 
Signed-off-by: Herbert Xu

crypto: gcm - Fix IV buffer size in crypto_gcm_setkey

2016-10-02T14:31:52+00:00

The cipher block size for GCM is 16 bytes, and thus the CTR transform
used in crypto_gcm_setkey() will also expect a 16-byte IV. However,
the code currently reserves only 8 bytes for the IV, causing
an out-of-bounds access in the CTR transform. This patch fixes
the issue by setting the size of the IV buffer to 16 bytes.

Fixes: 84c911523020 ("[CRYPTO] gcm: Add support for async ciphers")
Signed-off-by: Ondrej Mosnacek 
Signed-off-by: Herbert Xu

crypto: gcm - Use skcipher

2016-07-18T09:35:40+00:00

This patch converts gcm to use the new skcipher interface as opposed
to ablkcipher.

Signed-off-by: Herbert Xu

crypto: gcm - Filter out async ghash if necessary

2016-06-20T11:24:37+00:00

As it is if you ask for a sync gcm you may actually end up with
an async one because it does not filter out async implementations
of ghash.

This patch fixes this by adding the necessary filter when looking
for ghash.

Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu