From 7f645ab15a50b48bb13fb600bcd65ebff5d0a376 Mon Sep 17 00:00:00 2001
From: Manjeet Dahiya <manjeetdahiya@gmail.com>
Date: Thu, 7 Oct 2010 17:35:39 +0000
Subject: XOR encryption

---
 examples/GuiClient/utils.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'examples/GuiClient/utils.cpp')

diff --git a/examples/GuiClient/utils.cpp b/examples/GuiClient/utils.cpp
index 9b115d6d..98c02da6 100644
--- a/examples/GuiClient/utils.cpp
+++ b/examples/GuiClient/utils.cpp
@@ -155,3 +155,18 @@ bool isValidBareJid(const QString& bareJid)
     QRegExp re("^[^@]+@[^@]+$");
     return re.exactMatch(bareJid);
 }
+
+QByteArray calculateXor(const QByteArray& data, const QByteArray& key)
+{
+    if(key.isEmpty())
+        return data;
+
+    QByteArray result;
+    for(int i = 0 , j = 0; i < data.length(); ++i , ++j)
+    {
+        if(j == key.length())
+            j = 0;
+        result.append(data.at(i) ^ key.at(j));
+    }
+    return result;
+}
-- 
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