diff options
| author | Harald Freudenberger <freude@linux.vnet.ibm.com> | 2018-04-05 20:27:47 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-04-10 07:38:54 +0200 |
| commit | aff304e7a0e8f926edafcd1e0e4f6da2866e9845 (patch) | |
| tree | 13796ac68b411f5cf6ea9e097c6108c41bd4bda3 /arch/s390/crypto/aes_s390.c | |
| parent | c18bb396d3d261ebbb4efbc05129c5d354c541e4 (diff) | |
s390/crypto: Adjust s390 aes and paes cipher priorities
Tests with paes-xts and debugging investigations showed
that the ciphers are not always correctly resolved.
The rules for cipher priorities seem to be:
- Ecb-aes should have a prio greater than the
generic ecb-aes.
- The mode specialized ciphers (like cbc-aes-s390)
should have a prio greater than the sum of the
more generic combinations (like cbs(aes)).
This patch adjusts the cipher priorities for the
s390 aes and paes in kernel crypto implementations.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/crypto/aes_s390.c')
| -rw-r--r-- | arch/s390/crypto/aes_s390.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index fa9b7dd1a513..ad47abd08630 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -329,7 +329,7 @@ static void fallback_exit_blk(struct crypto_tfm *tfm) static struct crypto_alg ecb_aes_alg = { .cra_name = "ecb(aes)", .cra_driver_name = "ecb-aes-s390", - .cra_priority = 400, /* combo: aes + ecb */ + .cra_priority = 401, /* combo: aes + ecb + 1 */ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, @@ -426,7 +426,7 @@ static int cbc_aes_decrypt(struct blkcipher_desc *desc, static struct crypto_alg cbc_aes_alg = { .cra_name = "cbc(aes)", .cra_driver_name = "cbc-aes-s390", - .cra_priority = 400, /* combo: aes + cbc */ + .cra_priority = 402, /* ecb-aes-s390 + 1 */ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, @@ -633,7 +633,7 @@ static void xts_fallback_exit(struct crypto_tfm *tfm) static struct crypto_alg xts_aes_alg = { .cra_name = "xts(aes)", .cra_driver_name = "xts-aes-s390", - .cra_priority = 400, /* combo: aes + xts */ + .cra_priority = 402, /* ecb-aes-s390 + 1 */ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, @@ -763,7 +763,7 @@ static int ctr_aes_decrypt(struct blkcipher_desc *desc, static struct crypto_alg ctr_aes_alg = { .cra_name = "ctr(aes)", .cra_driver_name = "ctr-aes-s390", - .cra_priority = 400, /* combo: aes + ctr */ + .cra_priority = 402, /* ecb-aes-s390 + 1 */ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = 1, |