linux-toradex.git/arch/s390/crypto, branch v4.4.97

s390/crypto: unlock on error in prng_tdes_read()

2017-01-12T10:22:49+00:00

commit 9e6e7c74315095fd40f41003850690c711e44420 upstream.

We added some new locking but forgot to unlock on error.

Fixes: 57127645d79d ("s390/zcrypt: Introduce new SHA-512 based Pseudo Random Generator.")
Signed-off-by: Dan Carpenter 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Greg Kroah-Hartman

s390/crypto: provide correct file mode at device register.

2016-09-15T06:27:46+00:00

[ Upstream commit 74b2375e6767935e6d9220bdbc6ed0db57f71a59 ]

When the prng device driver calls misc_register() there is the possibility
to also provide the recommented file permissions. This fix now gives
useful values (0644) where previously just the default was used (resulting
in 0600 for the device file).

Signed-off-by: Harald Freudenberger 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

crypto: s390/sha - replace raw value by their coresponding define

2015-10-15T13:05:11+00:00

SHA_MAX_STATE_SIZE is just the number of u32 word for SHA512.
So replace the raw value "16" by their meaning (SHA512_DIGEST_SIZE / 4)

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

s390/crypto: add cpu feature modaliases for crypto modules

2015-07-22T07:58:02+00:00

Use the module_cpu_feature_match() module init function to add an
module alias based on required CPU features.   The modules are
automatically loaded on hardware that supports the required CPU features.

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2015-05-22T21:26:36+00:00

Pull another crypto fix from Herbert Xu:
 "Fix ICV corruption in s390/ghash when the same tfm is used by more
  than one thread"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: s390/ghash - Fix incorrect ghash icv buffer handling.

crypto: s390/ghash - Fix incorrect ghash icv buffer handling.

2015-05-22T03:23:03+00:00

Multitheaded tests showed that the icv buffer in the current ghash
implementation is not handled correctly. A move of this working ghash
buffer value to the descriptor context fixed this. Code is tested and
verified with an multithreaded application via af_alg interface.

Cc: stable@vger.kernel.org
Signed-off-by: Harald Freudenberger 
Signed-off-by: Gerald Schaefer 
Reported-by: Herbert Xu 
Signed-off-by: Herbert Xu

s390/crypto: fix stckf loop

2015-05-13T07:57:38+00:00

The store-clock-fast loop in generate_entropy() mixes (exors)
only the first 64 bytes of the initial page before doing the
first SHA256. Fix the loop to mix the store-clock-fast values
all over the page.

Signed-off-by: Harald Freudenberger 
Reported-by: David Binderman 
Signed-off-by: Martin Schwidefsky

s390/zcrypt: Introduce new SHA-512 based Pseudo Random Generator.

2015-04-23T14:56:21+00:00

Rework of the prandom device with introduction of a new SHA-512 based
NIST SP 800-90 conform deterministic random bit generator.

Signed-off-by: Harald Freudenberger 
Signed-off-by: Martin Schwidefsky

s390: remove test_facility(2) (== z/Architecture mode active) checks

2015-03-25T10:49:37+00:00

Given that the kernel now always runs in 64 bit mode, it is
pointless to check if the z/Architecture mode is active.
Remove the checks.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/crypto: remove 'const' to avoid compiler warnings

2015-01-08T09:02:53+00:00

In aes_encrypt() and aes_decrypt(), need let 'sctx->key' be modified,
so remove 'const' for it. The related warnings:

    CC [M]  arch/s390/crypto/aes_s390.o
  arch/s390/crypto/aes_s390.c: In function 'aes_encrypt':
  arch/s390/crypto/aes_s390.c:146:37: warning: passing argument 2 of 'crypt_s390_km' discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers]
     crypt_s390_km(KM_AES_128_ENCRYPT, &sctx->key, out, in,
                                       ^
  ...

  In file included from arch/s390/crypto/aes_s390.c:29:0:
  arch/s390/crypto/crypt_s390.h:154:19: note: expected 'void *' but argument is of type 'const u8 (*)[32] {aka const unsigned char (*)[32]}'
   static inline int crypt_s390_km(long func, void *param,
                     ^

Signed-off-by: Chen Gang 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky