CryptoJS v3.1.2 code.google.com/p/crypto-js (c) 2009-2013 by Jeff Mott. All rights reserved. code.google.com/p/crypto-js/wiki/License 哈西512的加密js引入包， 用法：var hash = CryptoJS.HmacSHA512("Message", "Secret Passphrase");
var sha256= SHA256("要加密的值"); /* CryptoJS v3.1.2 code.google.com/p/crypto-js (c) 2009-2013 by Jeff Mott. All rights reserved. code.google.com/p/crypto-js/wiki/License */ 文件来源：http://www.atool.org/res/crypto/sha256.js
