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path: root/frontend/beta/js/Clipperz/PM/Crypto.js
authorGiulio Cesare Solaroli <giulio.cesare@clipperz.com>2011-10-02 23:56:18 (UTC)
committer Giulio Cesare Solaroli <giulio.cesare@clipperz.com>2011-10-02 23:56:18 (UTC)
commitef68436ac04da078ffdcacd7e1f785473a303d45 (patch) (side-by-side diff)
treec403752d66a2c4775f00affd4fa8431b29c5b68c /frontend/beta/js/Clipperz/PM/Crypto.js
parent597ecfbc0249d83e1b856cbd558340c01237a360 (diff)
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First version of the newly restructured repository
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+/*
+
+Copyright 2008-2011 Clipperz Srl
+
+This file is part of Clipperz's Javascript Crypto Library.
+Javascript Crypto Library provides web developers with an extensive
+and efficient set of cryptographic functions. The library aims to
+obtain maximum execution speed while preserving modularity and
+reusability.
+For further information about its features and functionalities please
+refer to http://www.clipperz.com
+
+* Javascript Crypto Library 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.
+
+* Javascript Crypto Library 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 Javascript Crypto Library. If not, see
+ <http://www.gnu.org/licenses/>.
+
+*/
+
+if (typeof(Clipperz) == 'undefined') { Clipperz = {}; }
+if (typeof(Clipperz.PM) == 'undefined') { Clipperz.PM = {}; }
+if (typeof(Clipperz.PM.Crypto) == 'undefined') { Clipperz.PM.Crypto = {}; }
+
+Clipperz.PM.Crypto.VERSION = "0.2";
+Clipperz.PM.Crypto.NAME = "Clipperz.PM.Crypto";
+
+MochiKit.Base.update(Clipperz.PM.Crypto, {
+
+ '__repr__': function () {
+ return "[" + this.NAME + " " + this.VERSION + "]";
+ },
+
+ //-------------------------------------------------------------------------
+
+ 'toString': function () {
+ return this.__repr__();
+ },
+
+ //-------------------------------------------------------------------------
+
+ 'communicationProtocol': {
+ 'currentVersion': '0.2',
+ 'versions': {
+ '0.1': Clipperz.PM.Connection.SRP['1.0'], //Clipperz.Crypto.SRP.versions['1.0'].Connection,
+ '0.2': Clipperz.PM.Connection.SRP['1.1'] //Clipperz.Crypto.SRP.versions['1.1'].Connection,
+ },
+ 'fallbackVersions': {
+ 'current': '0.1',
+ '0.2': '0.1',
+ '0.1': null
+ }
+ },
+
+ //-------------------------------------------------------------------------
+
+ 'encryptingFunctions': {
+ 'currentVersion': '0.3',
+ 'versions': {
+
+ //#####################################################################
+
+ '0.1': {
+ 'encrypt': function(aKey, aValue) {
+ return Clipperz.Crypto.Base.encryptUsingSecretKey(aKey, Clipperz.Base.serializeJSON(aValue));
+ },
+
+ 'deferredEncrypt': function(aKey, aValue) {
+ var deferredResult;
+
+ deferredResult = new MochiKit.Async.Deferred();
+ deferredResult.addCallback(Clipperz.PM.Crypto.encryptingFunctions.versions['0.1'].encrypt, aKey, aValue);
+ deferredResult.callback();
+
+ return deferredResult;
+ },
+
+ 'decrypt': function(aKey, aValue) {
+ var result;
+
+ if (aValue != null) {
+ result = Clipperz.Base.evalJSON(Clipperz.Crypto.Base.decryptUsingSecretKey(aKey, aValue));
+ } else {
+ result = null;
+ }
+
+ return result;
+ },
+
+ 'deferredDecrypt': function(aKey, aValue) {
+ var deferredResult;
+
+ deferredResult = new MochiKit.Async.Deferred();
+ deferredResult.addCallback(Clipperz.PM.Crypto.encryptingFunctions.versions['0.1'].decrypt, aKey, aValue);
+ deferredResult.callback();
+
+ return deferredResult;
+ },
+
+ 'hash': function(aValue) {
+ var result;
+ var strngResult;
+
+ stringResult = Clipperz.Crypto.Base.computeHashValue(aValue.asString()); // !!!!!!!
+ result = new Clipperz.ByteArray("0x" + stringResult);
+
+ return result;
+ }
+ },
+
+ //#####################################################################
+
+ '0.2': {
+ 'encrypt': function(aKey, aValue, aNonce) {
+ var result;
+ var key, value;
+ var dataToEncrypt;
+ var encryptedData;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = new Clipperz.ByteArray(Clipperz.Base.serializeJSON(aValue));
+ dataToEncrypt = Clipperz.Crypto.SHA.sha_d256(value).appendBlock(value);
+ encryptedData = Clipperz.Crypto.AES.encrypt(key, dataToEncrypt, aNonce);
+ result = encryptedData.toBase64String();
+
+ return result;
+ },
+
+ 'deferredEncrypt': function(aKey, aValue, aNonce) {
+ var deferredResult;
+ var key, value;
+ var dataToEncrypt;
+ var encryptedData;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = new Clipperz.ByteArray(Clipperz.Base.serializeJSON(aValue));
+ dataToEncrypt = Clipperz.Crypto.SHA.sha_d256(value).appendBlock(value);
+
+ deferredResult = new MochiKit.Async.Deferred()
+ deferredResult.addCallback(Clipperz.Crypto.AES.deferredEncrypt, key, dataToEncrypt, aNonce);
+ deferredResult.addCallback(function(aResult) {
+ return aResult.toBase64String();
+ })
+ deferredResult.callback();
+
+ return deferredResult;
+ },
+
+ 'decrypt': function(aKey, aValue) {
+ var result;
+
+ if (aValue != null) {
+ var key, value;
+ var decryptedData;
+ var decryptedData;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = new Clipperz.ByteArray().appendBase64String(aValue);
+
+ decryptedData = Clipperz.Crypto.AES.decrypt(key, value);
+ decryptedData = decryptedData.split((256/8));
+
+ try {
+ result = Clipperz.Base.evalJSON(decryptedData.asString());
+ } catch (exception) {
+ MochiKit.Logging.logError("Error while decrypting data");
+ throw Clipperz.Crypto.Base.exception.CorruptedMessage;
+ }
+ } else {
+ result = null;
+ }
+
+ return result;
+ },
+
+ 'deferredDecrypt': function(aKey, aValue) {
+ var result;
+
+ if (aValue != null) {
+ var deferredResult;
+ var key, value;
+ var decryptedData;
+
+ result = new MochiKit.Async.Deferred();
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = new Clipperz.ByteArray().appendBase64String(aValue);
+
+
+ deferredResult = new MochiKit.Async.Deferred()
+ deferredResult.addCallback(Clipperz.Crypto.AES.deferredDecrypt, key, value);
+ deferredResult.addCallback(function(aResult) {
+ var result;
+ var decryptedData;
+
+ decryptedData = aResult.split((256/8));
+
+ try {
+ result = Clipperz.Base.evalJSON(decryptedData.asString());
+ } catch (exception) {
+ MochiKit.Logging.logError("Error while decrypting data");
+ throw Clipperz.Crypto.Base.exception.CorruptedMessage;
+ }
+
+ return result;
+ })
+ deferredResult.callback();
+
+ result = deferredResult;
+ } else {
+ result = MochiKit.Async.succeed(null);
+ }
+
+ return result;
+ },
+
+ 'hash': Clipperz.Crypto.SHA.sha_d256
+ },
+
+ //#####################################################################
+
+ '0.3': {
+ 'encrypt': function(aKey, aValue, aNonce) {
+ var result;
+ var key, value;
+ var data;
+ var dataToEncrypt;
+ var encryptedData;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = Clipperz.Base.serializeJSON(aValue);
+ data = new Clipperz.ByteArray(value);
+ encryptedData = Clipperz.Crypto.AES.encrypt(key, data, aNonce);
+ result = encryptedData.toBase64String();
+
+ return result;
+ },
+
+ 'deferredEncrypt': function(aKey, aValue, aNonce) {
+ var deferredResult;
+ var key, value;
+ var data;
+ var dataToEncrypt;
+ var encryptedData;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = Clipperz.Base.serializeJSON(aValue);
+ data = new Clipperz.ByteArray(value);
+
+ deferredResult = new MochiKit.Async.Deferred()
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("Clipperz.PM.Crypto.deferredEncrypt - 1: " + res); return res;});
+ deferredResult.addCallback(Clipperz.Crypto.AES.deferredEncrypt, key, data, aNonce);
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("Clipperz.PM.Crypto.deferredEncrypt - 2: " + res); return res;});
+ deferredResult.addCallback(function(aResult) {
+ return aResult.toBase64String();
+ })
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("Clipperz.PM.Crypto.deferredEncrypt - 3: " + res); return res;});
+ deferredResult.callback();
+
+ return deferredResult;
+ },
+
+ 'decrypt': function(aKey, aValue) {
+ var result;
+
+ if (aValue != null) {
+ var key, value;
+ var decryptedData;
+ var decryptedValue;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = new Clipperz.ByteArray().appendBase64String(aValue);
+
+ decryptedData = Clipperz.Crypto.AES.decrypt(key, value);
+
+ value = decryptedData.asString();
+ try {
+ result = Clipperz.Base.evalJSON(value);
+ } catch (exception) {
+ MochiKit.Logging.logError("Error while decrypting data");
+ throw Clipperz.Crypto.Base.exception.CorruptedMessage;
+ }
+ } else {
+ result = null;
+ }
+
+ return result;
+ },
+
+ 'deferredDecrypt': function(aKey, aValue) {
+ var deferredResult;
+// var now;
+
+ deferredResult = new MochiKit.Async.Deferred();
+ now = new Date;
+
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 1: " + res); return res;});
+ if (aValue != null) {
+ var key, value;
+ var decryptedData;
+ var decryptedValue;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+//MochiKit.Logging.logDebug("[" + (new Date() - now) + "] computed key");
+ value = new Clipperz.ByteArray().appendBase64String(aValue);
+//MochiKit.Logging.logDebug("[" + (new Date() - now) + "] appendedBase64String");
+
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 1.1: " /* + res*/); return res;});
+ deferredResult.addCallback(Clipperz.Crypto.AES.deferredDecrypt, key, value);
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 2: " /* + res*/); return res;});
+ deferredResult.addCallback(MochiKit.Async.wait, 0.1);
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 3: " /* + res*/); return res;});
+ deferredResult.addCallback(function(aResult) {
+ return aResult.asString();
+ });
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 4: " /* + res*/); return res;});
+ deferredResult.addCallback(MochiKit.Async.wait, 0.1);
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 5: " /* + res*/); return res;});
+ deferredResult.addCallback(Clipperz.Base.evalJSON);
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 6: " /* + res*/); return res;});
+ deferredResult.addErrback(function(anError) {
+ MochiKit.Logging.logError("Error while decrypting data");
+ throw Clipperz.Crypto.Base.exception.CorruptedMessage;
+ })
+//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("[" + (new Date() - now) + "] Clipperz.PM.Crypto.deferredDecrypt - 7: " /* + res*/); return res;});
+ } else {
+ deferredResult.addCallback(function() {
+ return null;
+ });
+ }
+ deferredResult.callback();
+
+ return deferredResult;
+ },
+
+ 'hash': Clipperz.Crypto.SHA.sha_d256
+ },
+
+ //#####################################################################
+/*
+ '0.4': {
+ 'encrypt': function(aKey, aValue, aNonce) {
+ var result;
+ var key, value;
+ var data;
+ var dataToEncrypt;
+ var encryptedData;
+
+//MochiKit.Logging.logDebug(">>> [" + (new Date()).valueOf() + "] Clipperz.PM.Crypto.versions[0.3].encrypt");
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+//MochiKit.Logging.logDebug("--- [" + (new Date()).valueOf() + "] Clipperz.PM.Crypto.versions[0.3].encrypt - 1");
+ value = Clipperz.Base.serializeJSON(aValue);
+//MochiKit.Logging.logDebug("--- [" + (new Date()).valueOf() + "] Clipperz.PM.Crypto.versions[0.3].encrypt - 2");
+/ *
+//MochiKit.Logging.logDebug("--> encrypt.fullSize: " + value.length);
+ value = value.replace(/":{"label":"/g, '":{l:"');
+ value = value.replace(/":{"key":"/g, '":{k:"');
+ value = value.replace(/":{"notes":"/g, '":{n:"');
+ value = value.replace(/":{"record":"/g, '":{r:"');
+ value = value.replace(/", "label":"/g, '",l:"');
+ value = value.replace(/", "favicon":"/g, '",f:"');
+//MochiKit.Logging.logDebug("<-- encrypt.compressed: " + value.length);
+* /
+ data = new Clipperz.ByteArray(value);
+//MochiKit.Logging.logDebug("--- [" + (new Date()).valueOf() + "] Clipperz.PM.Crypto.versions[0.3].encrypt - 3");
+ encryptedData = Clipperz.Crypto.AES.encrypt(key, data, aNonce);
+//MochiKit.Logging.logDebug("--- [" + (new Date()).valueOf() + "] Clipperz.PM.Crypto.versions[0.3].encrypt - 4");
+ result = encryptedData.toBase64String();
+//MochiKit.Logging.logDebug("<<< [" + (new Date()).valueOf() + "] Clipperz.PM.Crypto.versions[0.3].encrypt");
+
+ return result;
+ },
+
+ 'decrypt': function(aKey, aValue) {
+ var result;
+
+ if (aValue != null) {
+ var key, value;
+ var decryptedData;
+ var decryptedValue;
+
+ key = Clipperz.Crypto.SHA.sha_d256(new Clipperz.ByteArray(aKey));
+ value = new Clipperz.ByteArray().appendBase64String(aValue);
+
+ decryptedData = Clipperz.Crypto.AES.decrypt(key, value);
+
+ value = decryptedData.asString();
+/ *
+ value = value.replace(/":{l:"/g, '":{"label":"');
+ value = value.replace(/":{k:"/g, '":{"key":"');
+ value = value.replace(/":{n:"/g, '":{"notes":"');
+ value = value.replace(/":{r:"/g, '":{"record":"');
+ value = value.replace(/",l:"/g, '", "label":"');
+ value = value.replace(/",f:"/g, '", "favicon":"');
+* /
+ try {
+ result = Clipperz.Base.evalJSON(value);
+ } catch (exception) {
+ MochiKit.Logging.logError("Error while decrypting data");
+ throw Clipperz.Crypto.Base.exception.CorruptedMessage;
+ }
+
+
+ } else {
+ result = null;
+ }
+
+ return result;
+ },
+
+ 'hash': Clipperz.Crypto.SHA.sha_d256
+ },
+*/
+ //#####################################################################
+ __syntaxFix__: "syntax fix"
+ }
+ },
+
+ //-------------------------------------------------------------------------
+
+ 'encrypt': function(aKey, aValue, aVersion) {
+ return Clipperz.PM.Crypto.encryptingFunctions.versions[aVersion].encrypt(aKey, aValue);
+ },
+
+ 'deferredEncrypt': function(aKey, aValue, aVersion) {
+ return Clipperz.PM.Crypto.encryptingFunctions.versions[aVersion].deferredEncrypt(aKey, aValue);
+ },
+
+ 'encryptWithCurrentVersion': function(aKey, aValue) {
+ return Clipperz.PM.Crypto.encrypt(aKey, aValue, Clipperz.PM.Crypto.encryptingFunctions.currentVersion);
+ },
+
+ 'deferredEncryptWithCurrentVersion': function(aKey, aValue) {
+ return Clipperz.PM.Crypto.deferredEncrypt(aKey, aValue, Clipperz.PM.Crypto.encryptingFunctions.currentVersion);
+ },
+
+ //.........................................................................
+
+ 'decrypt': function(aKey, aValue, aVersion) {
+ return Clipperz.PM.Crypto.encryptingFunctions.versions[aVersion].decrypt(aKey, aValue);
+ },
+
+ 'deferredDecrypt': function(aKey, aValue, aVersion) {
+ return Clipperz.PM.Crypto.encryptingFunctions.versions[aVersion].deferredDecrypt(aKey, aValue);
+ },
+
+ //-------------------------------------------------------------------------
+
+ 'randomKey': function() {
+ return Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2);
+ },
+
+ //-------------------------------------------------------------------------
+
+ 'passwordEntropy': function(aValue) {
+ var result;
+ var bitPerChar;
+
+ bitPerChar = 4;
+ if (/[a-z]/.test(aValue)) {
+ bitPerChar ++;
+ }
+ if (/[A-Z]/.test(aValue)) {
+ bitPerChar ++;
+ }
+ if (/[^a-zA-Z0-9]/.test(aValue)) {
+ bitPerChar ++;
+ }
+//MochiKit.Logging.logDebug("--- bitPerChar: " + bitPerChar);
+
+ result = aValue.length * bitPerChar;
+
+ return result;
+ },
+
+ //-------------------------------------------------------------------------
+
+ 'nullValue': "####",
+
+ //-------------------------------------------------------------------------
+ __syntaxFix__: "syntax fix"
+
+});
+
+//*****************************************************************************
+
+MochiKit.Base.update(Clipperz.PM.Crypto.communicationProtocol.versions, {
+ 'current': Clipperz.PM.Crypto.communicationProtocol.versions[Clipperz.PM.Crypto.communicationProtocol.currentVersion]
+});
+
+MochiKit.Base.update(Clipperz.PM.Crypto.encryptingFunctions.versions, {
+ 'current': Clipperz.PM.Crypto.encryptingFunctions.versions[Clipperz.PM.Crypto.encryptingFunctions.currentVersion]
+});
+
+//*****************************************************************************