WSL2-Linux-Kernel/arch/s390/crypto
Eric Biggers 8d906d183b crypto: hash - annotate algorithms taking optional key
commit a208fa8f33 upstream.

We need to consistently enforce that keyed hashes cannot be used without
setting the key.  To do this we need a reliable way to determine whether
a given hash algorithm is keyed or not.  AF_ALG currently does this by
checking for the presence of a ->setkey() method.  However, this is
actually slightly broken because the CRC-32 algorithms implement
->setkey() but can also be used without a key.  (The CRC-32 "key" is not
actually a cryptographic key but rather represents the initial state.
If not overridden, then a default initial state is used.)

Prepare to fix this by introducing a flag CRYPTO_ALG_OPTIONAL_KEY which
indicates that the algorithm has a ->setkey() method, but it is not
required to be called.  Then set it on all the CRC-32 algorithms.

The same also applies to the Adler-32 implementation in Lustre.

Also, the cryptd and mcryptd templates have to pass through the flag
from their underlying algorithm.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-16 20:23:00 +01:00
..
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
aes_s390.c s390/crypto: Extend key length check for AES-XTS in fips mode. 2017-01-31 10:46:06 +01:00
arch_random.c s390: add missing header includes for type checking 2017-06-12 16:25:55 +02:00
crc32-vx.c crypto: hash - annotate algorithms taking optional key 2018-02-16 20:23:00 +01:00
crc32be-vx.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crc32le-vx.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
des_s390.c s390/crypto: Check des3_ede keys for uniqueness in fips mode 2017-01-31 10:46:02 +01:00
ghash_s390.c s390/crypto: cpacf function detection 2016-08-29 11:05:09 +02:00
paes_s390.c s390/crypt: use the correct module alias for paes_s390. 2017-04-26 16:52:57 +02:00
prng.c s390/crypto: Renaming PPNO to PRNO. 2017-04-26 13:41:32 +02:00
sha.h crypto: s390/sha - replace raw value by their coresponding define 2015-10-15 21:05:11 +08:00
sha1_s390.c s390/crypto: cpacf function detection 2016-08-29 11:05:09 +02:00
sha256_s390.c s390/crypto: cpacf function detection 2016-08-29 11:05:09 +02:00
sha512_s390.c s390/crypto: cpacf function detection 2016-08-29 11:05:09 +02:00
sha_common.c s390/crypto: simplify return code handling 2016-08-29 11:05:07 +02:00