161 lines
4.8 KiB
JavaScript
161 lines
4.8 KiB
JavaScript
/*
|
|
|
|
Copyright 2008-2015 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/.
|
|
|
|
*/
|
|
|
|
if (typeof(Clipperz) == 'undefined') { Clipperz = {}; }
|
|
if (typeof(Clipperz.PM) == 'undefined') { Clipperz.PM = {}; }
|
|
if (typeof(Clipperz.PM.PIN) == 'undefined') { Clipperz.PM.PIN = {}; }
|
|
|
|
MochiKit.Base.update(Clipperz.PM.PIN, {
|
|
|
|
//-------------------------------------------------------------------------
|
|
|
|
'__repr__': function () {
|
|
return "[" + this.NAME + " " + this.VERSION + "]";
|
|
},
|
|
|
|
//-------------------------------------------------------------------------
|
|
|
|
'toString': function () {
|
|
return this.__repr__();
|
|
},
|
|
|
|
'ENCRYPTED_PASSPHRASE_LENGTH': 1024,
|
|
'DEFAULT_PIN_LENGTH': 5,
|
|
'ALLOWED_RETRY': 3,
|
|
|
|
'LS_USERNAME': 'clipperz.pin.username',
|
|
'LS_PASSPHRASE': 'clipperz.pin.passphrase',
|
|
'LS_FAILURE_COUNT': 'clipperz.pin.failureCount',
|
|
|
|
//-------------------------------------------------------------------------
|
|
|
|
'isSet': function () {
|
|
return (localStorage[this.LS_USERNAME] && localStorage[this.LS_PASSPHRASE]);
|
|
},
|
|
|
|
//-------------------------------------------------------------------------
|
|
|
|
'recordFailedAttempt': function () {
|
|
var failureCount;
|
|
var result;
|
|
|
|
failureCount = localStorage[this.LS_FAILURE_COUNT];
|
|
|
|
if (failureCount == null) {
|
|
failureCount = 0
|
|
}
|
|
|
|
failureCount ++;
|
|
|
|
if (failureCount < this.ALLOWED_RETRY) {
|
|
localStorage[this.LS_FAILURE_COUNT] = failureCount;
|
|
result = failureCount;
|
|
} else {
|
|
this.disablePin();
|
|
result = -1;
|
|
}
|
|
|
|
return result;
|
|
},
|
|
|
|
'resetFailedAttemptCount': function () {
|
|
localStorage.removeItem(this.LS_FAILURE_COUNT);
|
|
},
|
|
|
|
'failureCount': function () {
|
|
return localStorage[this.LS_FAILURE_COUNT];
|
|
},
|
|
|
|
//-------------------------------------------------------------------------
|
|
|
|
'deriveKeyFromPin': function (aPIN) {
|
|
return Clipperz.Crypto.SHA.sha256(new Clipperz.ByteArray(aPIN));
|
|
},
|
|
|
|
'credentialsWithPIN': function(aPIN) {
|
|
return {
|
|
'username': localStorage[this.LS_USERNAME],
|
|
'passphrase': this.decryptPassphraseWithPin(aPIN, localStorage[this.LS_PASSPHRASE]),
|
|
}
|
|
},
|
|
|
|
'encryptPassphraseWithPin': function(aPIN, aPassphrase) {
|
|
var byteArrayPassphrase = new Clipperz.ByteArray(aPassphrase);
|
|
var randomBytesLength = this.ENCRYPTED_PASSPHRASE_LENGTH-byteArrayPassphrase.length()-1;
|
|
var randomBytes = Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(randomBytesLength);
|
|
var derivedKey = this.deriveKeyFromPin(aPIN);
|
|
|
|
byteArrayPassphrase.appendByte(0);
|
|
byteArrayPassphrase.appendBytes(randomBytes.arrayValues());
|
|
|
|
return Clipperz.Crypto.AES_2.encrypt(derivedKey, byteArrayPassphrase).toBase64String();
|
|
},
|
|
|
|
'decryptPassphraseWithPin': function(aPIN, anEncryptedPassphrase) {
|
|
var byteArrayEncryptedPassphrase = (new Clipperz.ByteArray()).appendBase64String(anEncryptedPassphrase);
|
|
var derivedKey = this.deriveKeyFromPin(aPIN);
|
|
var byteArrayPassphrase = Clipperz.Crypto.AES_2.decrypt(derivedKey, byteArrayEncryptedPassphrase);
|
|
var arrayPassphrase = byteArrayPassphrase.arrayValues();
|
|
var slicedArrayPassphrase = arrayPassphrase.slice(0, arrayPassphrase.indexOf(0));
|
|
|
|
return new Clipperz.ByteArray(slicedArrayPassphrase).asString();
|
|
},
|
|
|
|
'updatePin': function(aUser, aPIN) {
|
|
return Clipperz.Async.callbacks("Clipperz.PM.PIN", [
|
|
MochiKit.Base.method(aUser, 'username'),
|
|
MochiKit.Base.method(localStorage, 'setItem', this.LS_USERNAME),
|
|
MochiKit.Base.method(aUser, 'getPassphrase'),
|
|
MochiKit.Base.method(this, 'encryptPassphraseWithPin', aPIN),
|
|
MochiKit.Base.method(localStorage, 'setItem', this.LS_PASSPHRASE),
|
|
MochiKit.Base.method(localStorage, 'setItem', this.LS_FAILURE_COUNT, 0),
|
|
], {trace:false});
|
|
},
|
|
|
|
'disablePin': function () {
|
|
localStorage.removeItem(this.LS_USERNAME);
|
|
localStorage.removeItem(this.LS_PASSPHRASE);
|
|
localStorage.removeItem(this.LS_FAILURE_COUNT);
|
|
},
|
|
|
|
'isLocalStorageSupported': function() {
|
|
var result;
|
|
|
|
var test = 'test';
|
|
try {
|
|
localStorage.setItem(test, test);
|
|
localStorage.removeItem(test);
|
|
result = true;
|
|
} catch(e) {
|
|
result = false;
|
|
}
|
|
|
|
return result;
|
|
},
|
|
|
|
//-------------------------------------------------------------------------
|
|
__syntaxFix__: "syntax fix"
|
|
|
|
});
|
|
|