JS eval函数加解密
给大家发福利了，超简单实用的JavaScript加解密工具
步骤：1）拷贝以下代码，保存为html文件；
2）解密：双击运行html文件，将"eval(function(p,a,c,k,e,d){...}))"代码拷贝至页面文本框中，点击“解密”，即完成解密过程；
3）加密：双击运行html文件，将需要加密的JS脚本文件内容拷贝至页面文本框中，点击“加密”，即完成加密过程；
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>
JavaScript加解密实用工具
</title>
<script>
a = 62;
function encode() {
var code = document.getElementById('code').value;
code = code.replace(/[\r\n]+/g, '');
code = code.replace(/'/g, "\\'");
var tmp = code.match(/\b(\w+)\b/g);
tmp.sort();
var dict = [];
var i, t = '';
for (var i = 0; i < tmp.length; i++) {
if (tmp[i] != t) dict.push(t = tmp[i]);
}
var len = dict.length;
var ch;
for (i = 0; i < len; i++) {
ch = num(i);
code = code.replace(new RegExp('\\b' + dict[i] + '\\b', 'g'), ch);
if (ch == dict[i]) dict[i] = '';
}
document.getElementById('code').value = "eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}(" + "'" + code + "'," + a + "," + len + ",'" + dict.join('|') + "'.split('|'),0,{}))";
}
function num(c) {
return (c < a ? '': num(parseInt(c / a))) + ((c = c % a) > 35 ? String.fromCharCode(c + 29) : c.toString(36));
}
function run() {
eval(document.getElementById('code').value);
}
function clearAll() {
document.getElementById('code').value = '';
}
function decode() {
var code = document.getElementById('code').value;
code = code.replace(/^eval/, '');
document.getElementById('code').value = eval(code);
}
</script>
</head>
<body>
<textarea id='code' cols=80 rows=20></textarea>
<br>
<input type=button onclick=decode() value=解密>
<input type=button onclick=encode() value=加密>
<input type=button onclick=run() value=执行>
<input type="button" onclick="clearAll()" value="清空">
</body>
</html>JS在线格式化工具：
http://tool.lanrentuku.com/jsformat/
JS解密示例：
https://blog.csdn.net/cainiaoxiaozhou/article/details/8960561
