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/**
* GNU LibreJSXUL - A browser add-on to block nonfree nontrivial JavaScript.
* *
* Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros
* Copyright (C) 2014, 2015 Nik Nyby
*
* This file is part of GNU LibreJSXUL.
*
* GNU LibreJSXUL is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNU LibreJSXUL 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU LibreJSXUL. If not, see <http://www.gnu.org/licenses/>.
*/
var {Cc, Ci, Cu, Cm, Cr} = require("chrome");
var CryptoString = function() {
this.cryptoHash = Cc["@mozilla.org/security/hash;1"]
.createInstance(Ci.nsICryptoHash);
this.converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
createInstance(Ci.nsIScriptableUnicodeConverter);
this.hashAlgorithm = null;
};
CryptoString.prototype.init = function(hashAlgorithm, charset) {
this.converter.charset = charset;
this.hashAlgorithm = hashAlgorithm;
this.cryptoHash.init(this.cryptoHash[this.hashAlgorithm]);
};
CryptoString.prototype.encryptString = function(str) {
var me = this;
var result = {};
var data = this.converter.convertToByteArray(str, result);
this.cryptoHash.update(data, data.length);
var hash = this.cryptoHash.finish(false);
return Array.from(
hash,
(c, i) => me.toHexString(hash.charCodeAt(i))).join('');
};
CryptoString.prototype.toHexString = function(charCode) {
return ("0" + charCode.toString(16)).slice(-2);
};
var cryptoString = new CryptoString();
exports.sha1Encrypt = function(str) {
cryptoString.init('SHA1', 'UTF-8');
return cryptoString.encryptString(str);
};
exports.sha256Encrypt = function(str) {
cryptoString.init('SHA256', 'UTF-8');
return cryptoString.encryptString(str);
};
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