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crypto: padlock - Fix hashing of partial blocks

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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>
This commit is contained in:
Herbert Xu 2009-07-16 10:33:27 +08:00
parent cbc86b9161
commit e9b25f16cd
1 changed files with 2 additions and 0 deletions
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2
drivers/crypto/padlock-sha.c
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@ -94,6 +94,7 @@ static int padlock_sha1_finup(struct shash_desc *desc, const u8 *in,
memcpy(state.buffer + leftover, in, count); memcpy(state.buffer + leftover, in, count);
in = state.buffer; in = state.buffer;
count += leftover; 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); memcpy(state.buf + leftover, in, count);
in = state.buf; in = state.buf;
count += leftover; count += leftover;
state.count &= ~(SHA1_BLOCK_SIZE - 1);
} }
} }