aboutsummaryrefslogtreecommitdiff
path: root/networking/tls_aesgcm.c
diff options
context:
space:
mode:
Diffstat (limited to 'networking/tls_aesgcm.c')
-rw-r--r--networking/tls_aesgcm.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/networking/tls_aesgcm.c b/networking/tls_aesgcm.c
index db720e5f6..fd72540c4 100644
--- a/networking/tls_aesgcm.c
+++ b/networking/tls_aesgcm.c
@@ -50,8 +50,8 @@ static void RIGHTSHIFTX(byte* x)
static void GMULT(byte* X, byte* Y)
{
- byte Z[AES_BLOCK_SIZE];
- byte V[AES_BLOCK_SIZE];
+ byte Z[AES_BLOCK_SIZE] ALIGNED_long;
+ byte V[AES_BLOCK_SIZE] ALIGNED_long;
int i, j;
XMEMSET(Z, 0, AES_BLOCK_SIZE);
@@ -62,7 +62,7 @@ static void GMULT(byte* X, byte* Y)
for (j = 0; j < 8; j++)
{
if (y & 0x80) {
- xorbuf(Z, V, AES_BLOCK_SIZE);
+ xorbuf_aligned_AES_BLOCK_SIZE(Z, V);
}
RIGHTSHIFTX(V);
@@ -86,8 +86,8 @@ void FAST_FUNC aesgcm_GHASH(byte* h,
byte* s //, unsigned sSz
)
{
- byte x[AES_BLOCK_SIZE] ALIGNED(4);
- byte scratch[AES_BLOCK_SIZE] ALIGNED(4);
+ byte x[AES_BLOCK_SIZE] ALIGNED_long;
+ byte scratch[AES_BLOCK_SIZE] ALIGNED_long;
word32 blocks, partial;
//was: byte* h = aes->H;
@@ -116,6 +116,7 @@ void FAST_FUNC aesgcm_GHASH(byte* h,
blocks = cSz / AES_BLOCK_SIZE;
partial = cSz % AES_BLOCK_SIZE;
while (blocks--) {
+ //xorbuf_aligned_AES_BLOCK_SIZE(x, c); - c is not guaranteed to be aligned
xorbuf(x, c, AES_BLOCK_SIZE);
GMULT(x, h);
c += AES_BLOCK_SIZE;
@@ -124,7 +125,7 @@ void FAST_FUNC aesgcm_GHASH(byte* h,
//XMEMSET(scratch, 0, AES_BLOCK_SIZE);
//XMEMCPY(scratch, c, partial);
//xorbuf(x, scratch, AES_BLOCK_SIZE);
- xorbuf(x, c, partial);
+ xorbuf(x, c, partial);//same result as above
GMULT(x, h);
}
}
@@ -132,7 +133,7 @@ void FAST_FUNC aesgcm_GHASH(byte* h,
/* Hash in the lengths of A and C in bits */
FlattenSzInBits(&scratch[0], aSz);
FlattenSzInBits(&scratch[8], cSz);
- xorbuf(x, scratch, AES_BLOCK_SIZE);
+ xorbuf_aligned_AES_BLOCK_SIZE(x, scratch);
GMULT(x, h);
/* Copy the result into s. */