1 files changed, 16 insertions, 0 deletions
diff --git a/libs/libsignal/src/curve25519/ed25519/additions/zeroize.c b/libs/libsignal/src/curve25519/ed25519/additions/zeroize.c
new file mode 100644
index 0000000000..187e725eb5
--- /dev/null
+++ b/libs/libsignal/src/curve25519/ed25519/additions/zeroize.c
@@ -0,0 +1,16 @@
+#include "zeroize.h"
+
+void zeroize(unsigned char* b, size_t len)
+{
+  size_t count = 0;
+  volatile unsigned char *p = b;
+
+  for (count = 0; count < len; count++)
+    p[count] = 0;
+}
+
+void zeroize_stack()
+{
+  unsigned char m[ZEROIZE_STACK_SIZE];
+  zeroize(m, ZEROIZE_STACK_SIZE);
+}