modes/ocb128.c: fix sanitizer warning.
Reviewed-by: Rich Salz <rsalz@openssl.org>
diff --git a/crypto/modes/ocb128.c b/crypto/modes/ocb128.c
index d49aa6e..6206755 100644
--- a/crypto/modes/ocb128.c
+++ b/crypto/modes/ocb128.c
@@ -78,7 +78,8 @@
/*
* Shift a block of 16 bytes left by shift bits
*/
-static void ocb_block_lshift(OCB_BLOCK *in, size_t shift, OCB_BLOCK *out)
+static void ocb_block_lshift(const unsigned char *in, size_t shift,
+ unsigned char *out)
{
unsigned char shift_mask;
int i;
@@ -88,13 +89,13 @@
shift_mask <<= (8 - shift);
for (i = 15; i >= 0; i--) {
if (i > 0) {
- mask[i - 1] = in->c[i] & shift_mask;
+ mask[i - 1] = in[i] & shift_mask;
mask[i - 1] >>= 8 - shift;
}
- out->c[i] = in->c[i] << shift;
+ out[i] = in[i] << shift;
if (i != 15) {
- out->c[i] ^= mask[i];
+ out[i] ^= mask[i];
}
}
}
@@ -114,7 +115,7 @@
mask >>= 7;
mask *= 135;
- ocb_block_lshift(in, 1, out);
+ ocb_block_lshift(in->c, 1, out->c);
out->c[15] ^= mask;
}
@@ -307,8 +308,7 @@
/* Offset_0 = Stretch[1+bottom..128+bottom] */
shift = bottom % 8;
- ocb_block_lshift((OCB_BLOCK *)(stretch + (bottom / 8)), shift,
- &ctx->offset);
+ ocb_block_lshift(stretch + (bottom / 8), shift, ctx->offset.c);
mask = 0xff;
mask <<= 8 - shift;
ctx->offset.c[15] |=
