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authorHerbert Xu <herbert@gondor.apana.org.au>2009-07-16 10:33:27 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2009-07-16 10:33:27 +0800
commite9b25f16cda88b33fe15b30c009912e6c471edda (patch)
tree088b467b09f050bf7d6cc867d0ce8190d9e2ee4b /drivers/crypto/padlock-sha.c
parentcbc86b9161b40f95caee0e56381b68956fc28cc4 (diff)
downloadlinux-linaro-stable-e9b25f16cda88b33fe15b30c009912e6c471edda.tar.gz
crypto: padlock - Fix hashing of partial blocks
When we encounter partial blocks in finup, we'll invoke the xsha instruction with a bogus count that is not a multiple of the block size. This patch fixes it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/padlock-sha.c')
-rw-r--r--drivers/crypto/padlock-sha.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c
index a936ba49b390..76cb6b345e7b 100644
--- a/drivers/crypto/padlock-sha.c
+++ b/drivers/crypto/padlock-sha.c
@@ -94,6 +94,7 @@ static int padlock_sha1_finup(struct shash_desc *desc, const u8 *in,
memcpy(state.buffer + leftover, in, count);
in = state.buffer;
count += leftover;
+ state.count &= ~(SHA1_BLOCK_SIZE - 1);
}
}
@@ -157,6 +158,7 @@ static int padlock_sha256_finup(struct shash_desc *desc, const u8 *in,
memcpy(state.buf + leftover, in, count);
in = state.buf;
count += leftover;
+ state.count &= ~(SHA1_BLOCK_SIZE - 1);
}
}