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Commit e9b25f16 authored by Herbert Xu's avatar Herbert Xu
Browse files

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: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent cbc86b91

drivers/crypto/padlock-sha.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

		}

	}