Fixed an issue on the AES-CTR block mode

The previous version of the CTR encoding was incrementing the counter in a weird way, mixing up data from the previous block.
The current fix can correctly decrypt data encoded with AES-CTR using other libraries/languages (currently tested only with Python).

1 files changed, 50 insertions, 0 deletions

diff --git a/frontend/gamma/tests/tests/Clipperz/PM/Crypto_v0_4.test.js b/frontend/gamma/tests/tests/Clipperz/PM/Crypto_v0_4.test.js
new file mode 100644
index 0000000..ecfbec3
--- a/dev/null
+++ b/frontend/gamma/tests/tests/Clipperz/PM/Crypto_v0_4.test.js
@@ -0,0 +1,50 @@
+/*
+
+Copyright 2008-2013 Clipperz Srl
+
+This file is part of Clipperz, the online password manager.
+For further information about its features and functionalities please
+refer to http://www.clipperz.com.
+
+* Clipperz is free software: you can redistribute it and/or modify it
+  under the terms of the GNU Affero General Public License as published
+  by the Free Software Foundation, either version 3 of the License, or 
+  (at your option) any later version.
+
+* Clipperz is distributed in the hope that it will be useful, but 
+  WITHOUT ANY WARRANTY; without even the implied warranty of 
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Affero General Public License for more details.
+
+* You should have received a copy of the GNU Affero General Public
+  License along with Clipperz. If not, see http://www.gnu.org/licenses/.
+
+*/
+
+var tests = {
+	
+	'decryptDataEncryptedUsingPythonLibrary_test': function (someTestArgs) {
+		var deferredResult;
+
+		passphrase = 'trustno1';
+		encryptedData = 'OucTxzBWmqm8jS7EUyIlWUWDPSFKvulL5iM4WwLPbNVIH7jtaK9pmzpm9w5ioVy2/tyebVwWr36t7QXSBOPwUPo2SlGmARCozA==';
+
+		deferredResult = new Clipperz.Async.Deferred("decryptDataEncryptedUsingPythonLibrary_test", someTestArgs);
+		deferredResult.addCallback(Clipperz.PM.Crypto.deferredDecrypt, {key:passphrase, value:encryptedData, version:'0.4'});
+		deferredResult.addCallback(MochiKit.Base.itemgetter('message'));
+		deferredResult.addTest("The quick brown fox jumps over the lazy dog", "expected value");
+		
+		deferredResult.callback();
+		
+		return deferredResult;
+		
+	},
+
+    //-------------------------------------------------------------------------
+    'syntaxFix': MochiKit.Base.noop
+}
+
+//=============================================================================
+
+Clipperz.Crypto.PRNG.defaultRandomGenerator().fastEntropyAccumulationForTestingPurpose();
+SimpleTest.runDeferredTests("Clipperz.PM.Crypto [0.4]", tests, {trace:false});