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authorHerbert Xu <herbert@gondor.apana.org.au>2006-05-16 22:06:54 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-06-26 17:34:38 +1000
commit43600106e32809a4dead79fec67a63e9860e3d5d (patch)
tree20590746b98c41d6cc8b590b01cecddf9a185270 /crypto
parent8b55ba0303bb59c34fab8e015634018780491614 (diff)
[CRYPTO] digest: Remove unnecessary zeroing during init
Various digest algorithms operate one block at a time and therefore keep a temporary buffer of partial blocks. This buffer does not need to be initialised since there is a counter which indicates what is and isn't valid in it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/sha256.c1
-rw-r--r--crypto/sha512.c2
-rw-r--r--crypto/tgr192.c1
3 files changed, 0 insertions, 4 deletions
diff --git a/crypto/sha256.c b/crypto/sha256.c
index d62264a8a33..4533a056489 100644
--- a/crypto/sha256.c
+++ b/crypto/sha256.c
@@ -242,7 +242,6 @@ static void sha256_init(void *ctx)
sctx->state[6] = H6;
sctx->state[7] = H7;
sctx->count[0] = sctx->count[1] = 0;
- memset(sctx->buf, 0, sizeof(sctx->buf));
}
static void sha256_update(void *ctx, const u8 *data, unsigned int len)
diff --git a/crypto/sha512.c b/crypto/sha512.c
index 7dbec4f6b94..bc77a66d9de 100644
--- a/crypto/sha512.c
+++ b/crypto/sha512.c
@@ -173,7 +173,6 @@ sha512_init(void *ctx)
sctx->state[6] = H6;
sctx->state[7] = H7;
sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0;
- memset(sctx->buf, 0, sizeof(sctx->buf));
}
static void
@@ -189,7 +188,6 @@ sha384_init(void *ctx)
sctx->state[6] = HP6;
sctx->state[7] = HP7;
sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0;
- memset(sctx->buf, 0, sizeof(sctx->buf));
}
static void
diff --git a/crypto/tgr192.c b/crypto/tgr192.c
index 1eae1bb7e49..004bb841cc5 100644
--- a/crypto/tgr192.c
+++ b/crypto/tgr192.c
@@ -500,7 +500,6 @@ static void tgr192_init(void *ctx)
{
struct tgr192_ctx *tctx = ctx;
- memset (tctx->hash, 0, 64);
tctx->a = 0x0123456789abcdefULL;
tctx->b = 0xfedcba9876543210ULL;
tctx->c = 0xf096a5b4c3b2e187ULL;