gentoo-overlay/app-crypt/qca/files/qca-2.3.2-cmsut-signverify_message_invalid-fails-randomly.patch

From ecdd0538dded7d2ba9e73a51f4f52030dd3f5a3b Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <aacid@kde.org>
Date: Fri, 5 Feb 2021 17:43:45 +0100
Subject: [PATCH] Fix CMSut::signverify_message_invalid failing "randomly"

Once in a blue moon it happens that signedResult1[signedResult1.size() -
2] is a 0, so setting it to 0 doesn't break the signature validation, so
   check if it's a 0 and if it is, set it to 1
---
 unittest/cms/cms.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/unittest/cms/cms.cpp b/unittest/cms/cms.cpp
index 4901221e..9b541789 100644
--- a/unittest/cms/cms.cpp
+++ b/unittest/cms/cms.cpp
@@ -499,7 +499,11 @@ void CMSut::signverify_message_invalid()
 
             // This is just to break things
             // signedResult1[30] = signedResult1[30] + 1;
-            signedResult1[signedResult1.size() - 2] = 0x00;
+            if (signedResult1.at(signedResult1.size() - 2) != 0) {
+                signedResult1[signedResult1.size() - 2] = 0x00;
+            } else {
+                signedResult1[signedResult1.size() - 2] = 0x01;
+            }
 
             msg.startVerify();
             msg.update(signedResult1);
-- 
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