From 47f9a6b3a3c706b863849deb6122ecf49ef5f5e3 Mon Sep 17 00:00:00 2001
From: Christian Stadelmann <dev@genodeftest.de>
Date: Thu, 23 Apr 2015 11:08:29 +0200
Subject: [PATCH] Add another security warning for using the SHA-2
 implementation

---
 src/librustc_back/sha2.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/librustc_back/sha2.rs b/src/librustc_back/sha2.rs
index 9ed827da8b2e4..efbd4c3ef5ec2 100644
--- a/src/librustc_back/sha2.rs
+++ b/src/librustc_back/sha2.rs
@@ -482,6 +482,7 @@ pub struct Sha256 {
 
 impl Sha256 {
     /// Construct a new instance of a SHA-256 digest.
+    /// Do not – under any circumstances – use this where timing attacks might be possible!
     pub fn new() -> Sha256 {
         Sha256 {
             engine: Engine256::new(&H256)