From: Christian Lamparter chunkeey@gmail.com
commit bfa2ba7d9e6b20aca82b99e6842fe18842ae3a0f upstream.
This patch fixes a issue with crypto4xx's ctr(aes) that was discovered by libcapi's kcapi-enc-test.sh test.
The some of the ctr(aes) encryptions test were failing on the non-power-of-two test:
kcapi-enc - Error: encryption failed with error 0 kcapi-enc - Error: decryption failed with error 0 [FAILED: 32-bit - 5.1.0-rc1+] 15 bytes: STDIN / STDOUT enc test (128 bits): original file (1d100e..cc96184c) and generated file (e3b0c442..1b7852b855) [FAILED: 32-bit - 5.1.0-rc1+] 15 bytes: STDIN / STDOUT enc test (128 bits) (openssl generated CT): original file (e3b0..5) and generated file (3..8e) [PASSED: 32-bit - 5.1.0-rc1+] 15 bytes: STDIN / STDOUT enc test (128 bits) (openssl generated PT) [FAILED: 32-bit - 5.1.0-rc1+] 15 bytes: STDIN / STDOUT enc test (password): original file (1d1..84c) and generated file (e3b..852b855)
But the 16, 32, 512, 65536 tests always worked.
Thankfully, this isn't a hidden hardware problem like previously, instead this turned out to be a copy and paste issue.
With this patch, all the tests are passing with and kcapi-enc-test.sh gives crypto4xx's a clean bill of health: "Number of failures: 0" :).
Cc: stable@vger.kernel.org Fixes: 98e87e3d933b ("crypto: crypto4xx - add aes-ctr support") Fixes: f2a13e7cba9e ("crypto: crypto4xx - enable AES RFC3686, ECB, CFB and OFB offloads") Signed-off-by: Christian Lamparter chunkeey@gmail.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/crypto/amcc/crypto4xx_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/crypto/amcc/crypto4xx_core.c +++ b/drivers/crypto/amcc/crypto4xx_core.c @@ -1259,7 +1259,7 @@ static struct crypto4xx_alg_common crypt .cra_flags = CRYPTO_ALG_NEED_FALLBACK | CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = AES_BLOCK_SIZE, + .cra_blocksize = 1, .cra_ctxsize = sizeof(struct crypto4xx_ctx), .cra_module = THIS_MODULE, }, @@ -1279,7 +1279,7 @@ static struct crypto4xx_alg_common crypt .cra_priority = CRYPTO4XX_CRYPTO_PRIORITY, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = AES_BLOCK_SIZE, + .cra_blocksize = 1, .cra_ctxsize = sizeof(struct crypto4xx_ctx), .cra_module = THIS_MODULE, },