From ada88090ead2c3b9d0804794c5f20f9b24d1c2b1 Mon Sep 17 00:00:00 2001 From: Nik Nyby Date: Sat, 17 Jan 2015 17:12:36 -0500 Subject: Import to new git repository The old repository was using almost 100mb of space because of all the unnecessary files in the history. So I've imported the code to a new git repository. Unfortunately the history isn't viewable from this repository anymore. To see what happened with LibreJS before 2015, see the old Bazaar repo here: http://bzr.savannah.gnu.org/lh/librejs/ --- lib/script_entries/crypto.js | 60 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 lib/script_entries/crypto.js (limited to 'lib/script_entries/crypto.js') diff --git a/lib/script_entries/crypto.js b/lib/script_entries/crypto.js new file mode 100644 index 0000000..e8844b1 --- /dev/null +++ b/lib/script_entries/crypto.js @@ -0,0 +1,60 @@ +/** + * GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript. + * * + * Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros + * + * This program 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. + * + * This program 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 this program. If not, see . + * + */ + +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 result = {}; + var data = this.converter.convertToByteArray(str, result); + this.cryptoHash.update(data, data.length); + var hash = this.cryptoHash.finish(false); + return [this.toHexString(hash.charCodeAt(i)) for (i in hash)].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); +}; -- cgit v1.2.3