From 9ada5d32c9c675a225a83eb2ab855d97de503725 Mon Sep 17 00:00:00 2001
From: davidsemakula <hello@davidsemakula.com>
Date: Mon, 16 Oct 2023 11:01:42 +0300
Subject: [PATCH] zerorize zk proof secrets

---
 multi-party-ecdsa/src/utilities/zk_composite_dlog.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/multi-party-ecdsa/src/utilities/zk_composite_dlog.rs b/multi-party-ecdsa/src/utilities/zk_composite_dlog.rs
index 3725497..f69f39a 100644
--- a/multi-party-ecdsa/src/utilities/zk_composite_dlog.rs
+++ b/multi-party-ecdsa/src/utilities/zk_composite_dlog.rs
@@ -21,6 +21,7 @@ use merlin::Transcript;
 use serde::{Deserialize, Serialize};
 use serde_repr::{Deserialize_repr, Serialize_repr};
 use serde_with::serde_as;
+use zeroize::ZeroizeOnDrop;
 
 /// Statistical security parameter (i.e. m=80 in CGGMP20).
 const STAT_SECURITY: usize = 80;
@@ -32,7 +33,7 @@ pub struct CompositeDLogStatement {
     pub value: BigInt,
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Debug, Clone, Serialize, Deserialize, ZeroizeOnDrop)]
 pub struct CompositeDLogWitness {
     pub exponent: BigInt,
     pub totient: BigInt,