From c9fe6c5533b4a476c0d0e3846ebc2277ffe36f23 Mon Sep 17 00:00:00 2001
From: gedigi <19227040+gedigi@users.noreply.github.com>
Date: Thu, 19 Mar 2020 14:16:06 -0700
Subject: [PATCH] implemented Zeroize for CompressedRistretto and
 RistrettoPoint

---
 src/ristretto.rs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/ristretto.rs b/src/ristretto.rs
index c4b6170..0e8f742 100644
--- a/src/ristretto.rs
+++ b/src/ristretto.rs
@@ -200,6 +200,8 @@ use backend::serial::scalar_mul;
 ))]
 use backend::vector::scalar_mul;
 
+use zeroize::Zeroize;
+
 // ------------------------------------------------------------------------
 // Compressed points
 // ------------------------------------------------------------------------
@@ -1078,6 +1080,25 @@ impl Debug for RistrettoPoint {
     }
 }
 
+// ------------------------------------------------------------------------
+// Zeroize traits
+// ------------------------------------------------------------------------
+
+impl Zeroize for CompressedRistretto {
+    fn zeroize(&mut self) {
+        self.0.zeroize();
+    }
+}
+
+impl Zeroize for RistrettoPoint {
+    fn zeroize(&mut self) {
+        self.0.X.zeroize();
+        self.0.Y.zeroize();
+        self.0.Z.zeroize();
+        self.0.T.zeroize();
+    }
+}
+
 // ------------------------------------------------------------------------
 // Tests
 // ------------------------------------------------------------------------