JavaScript：md5、base64、sha1等加密算法

1. md5.js

<script type="text/ecmascript" src="md5.js"></script>
<script type="text/javascript">  
  var hash = hex_md5("123dafd");
    alert(hash)
</script>  

2. base64.js

<script type="text/javascript" src="base64.js"></script>
<script type="text/javascript">  
        var b = new Base64();  
        var str = b.encode("admin:admin");  
        alert("base64 encode:" + str);  
　　　　　//解密
        str = b.decode(str);  
        alert("base64 decode:" + str);  
</script>

3. sha1.js

<script type="text/ecmascript" src="sha1.js"></script>
<script type="text/javascript">
  var sha = hex_sha1('mima123465')
    alert(sha)   
</script>  

参考：

• http://pajhome.org.uk/crypt/md5/index.html
• http://www.cnblogs.com/mofish/archive/2012/02/25/2367858.html