From 4d944fc9ffc5be9bfcccc6411314929864f7a696 Mon Sep 17 00:00:00 2001
From: J08nY
Date: Thu, 5 Oct 2023 19:04:18 +0200
Subject: Make sure wsliding array is zero.

---
 pyecsca/codegen/bn/bn.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pyecsca/codegen/bn/bn.c b/pyecsca/codegen/bn/bn.c
index 5e9164a..9ad4d59 100644
--- a/pyecsca/codegen/bn/bn.c
+++ b/pyecsca/codegen/bn/bn.c
@@ -472,6 +472,7 @@ wsliding_t *bn_wsliding_ltr(const bn_t *bn, int w) {
 
     int blen = bn_bit_length(bn);
     uint8_t arr[blen];
+    memset(arr, 0, blen * sizeof(uint8_t));
 
     int b = blen - 1;
     int u = 0;
@@ -540,6 +541,7 @@ wsliding_t *bn_wsliding_rtl(const bn_t *bn, int w) {
 
     int blen = bn_bit_length(bn);
     uint8_t arr[blen];
+    memset(arr, 0, blen * sizeof(uint8_t));
 
     bn_t k;
 	if (mp_init(&k) != BN_OKAY) {
-- 
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