js中常见的数据加密与解密的方法

  <script src="https://cdn.bootcss.com/blueimp-md5/2.10.0/js/md5.js"></script>
  
  var hash = md5("111111"); // "96e79218965eb72c92a549dd5a330112"

    <script src="https://cdn.bootcss.com/jsencrypt/3.0.0-beta.1/jsencrypt.js"></script>
    <script type="text/javascript">
        //公钥

        var PUBLIC_KEY = ‘MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCADB+zg4Ou3fv6rY8159gw4fkJbuMPeM41ttw20leKjSKQWOgBixHJjXbkRvoMmUQkWq67xWzpMgKB7t8LIJx+n0dLP+6YDqbfFEJJ2i1Va4U1yJyGht0bEW0tpadKX3i5JwUwQIBPiC7VSWhtVyAKtzTYeun/fqpxTDAbulrj4QIDAQAB‘;
        //私钥
        var PRIVATE_KEY = ‘MIICWwIBAAKBgQCADB+zg4Ou3fv6rY8159gw4fkJbuMPeM41ttw20leKjSKQWOgBixHJjXbkRvoMmUQkWq67xWzpMgKB7t8LIJx+n0dLP+6YDqbfFEJJ2i1Va4U1yJyGht0bEW0tpadKX3i5JwUwQIBPiC7VSWhtVyAKtzTYeun/fqpxTDAbulrj4QIDAQABAoGACj/Y2m0orBAfvHvfrpBtc9LlX2sX/g6M7wFr6hrMdWOBBJiL5Z0PTO39D3Ow 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‘;
        //使用公钥加密
        var encrypt = new JSEncrypt();
          //encrypt.setPrivateKey(‘-----BEGIN RSA PRIVATE KEY-----‘+PRIVATE_KEY+‘-----END RSA PRIVATE KEY-----‘);
        encrypt.setPublicKey(‘-----BEGIN PUBLIC KEY-----‘ + PUBLIC_KEY + ‘-----END PUBLIC KEY-----‘);
        var encrypted = encrypt.encrypt(‘ceshi01‘);
        console.log(‘加密后数据:%o‘, encrypted);
        //使用私钥解密
        var decrypt = new JSEncrypt();
        //decrypt.setPublicKey(‘-----BEGIN PUBLIC KEY-----‘ + PUBLIC_KEY + ‘-----END PUBLIC KEY-----‘);
        decrypt.setPrivateKey(‘-----BEGIN RSA PRIVATE KEY-----‘+PRIVATE_KEY+‘-----END RSA PRIVATE KEY-----‘);
        var uncrypted = decrypt.decrypt(encrypted);
        console.log(‘解密后数据:%o‘, uncrypted);
    </script>

var navigator2 = {
        appName: ‘Netscape‘,
        userAgent: ‘Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1‘
    };
    var window2 = {
        ASN1: null,
        Base64: null,
        Hex: null,
        crypto: null,
        href: null
    };
    let navigator = navigator2
    let window = window2

<script src="https://cdn.bootcss.com/crypto-js/3.1.9-1/crypto-js.js"></script>
<script>
  var aseKey = "12345678"     //秘钥必须为：8/16/32位
  var message = "我是一个密码";
  //加密 DES/AES切换只需要修改 CryptoJS.AES <=> CryptoJS.DES
  var encrypt = CryptoJS.AES.encrypt(message, CryptoJS.enc.Utf8.parse(aseKey), {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7
  }).toString();

  console.log(encrypt); // 0Gh9NGnwOpgmB525QS0JhVJlsn5Ev9cHbABgypzhGnM

  //解密
  var decrypt = CryptoJS.AES.decrypt(encrypt, CryptoJS.enc.Utf8.parse(aseKey), {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7
  }).toString(CryptoJS.enc.Utf8);

  console.log(decrypt); // 我是一个密码 
</script>

var Base64 = {
 _keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
 encode: function(e) {
  var t = "";
  var n, r, i, s, o, u, a;
  var f = 0;
  e = Base64._utf8_encode(e);
  while (f < e.length) {
   n = e.charCodeAt(f++);
   r = e.charCodeAt(f++);
   i = e.charCodeAt(f++);
   s = n >> 2;
   o = (n & 3) << 4 | r >> 4;
   u = (r & 15) << 2 | i >> 6;
   a = i & 63;
   if (isNaN(r)) {
    u = a = 64
   } else if (isNaN(i)) {
    a = 64
   }
   t = t + this._keyStr.charAt(s) + this._keyStr.charAt(o) + this._keyStr.charAt(u) + this._keyStr.charAt(a)
  }
  return t
 },
 decode: function(e) {
  var t = "";
  var n, r, i;
  var s, o, u, a;
  var f = 0;
  e=e.replace(/[^A-Za-z0-9+/=]/g,"");
  while (f < e.length) {
   s = this._keyStr.indexOf(e.charAt(f++));
   o = this._keyStr.indexOf(e.charAt(f++));
   u = this._keyStr.indexOf(e.charAt(f++));
   a = this._keyStr.indexOf(e.charAt(f++));
   n = s << 2 | o >> 4;
   r = (o & 15) << 4 | u >> 2;
   i = (u & 3) << 6 | a;
   t = t + String.fromCharCode(n);
   if (u != 64) {
    t = t + String.fromCharCode(r)
   }
   if (a != 64) {
    t = t + String.fromCharCode(i)
   }
  }
  t = Base64._utf8_decode(t);
  return t
 }
}
// 定义字符串
var string = ‘Hello World!‘;
// 加密
var encodedString = Base64.encode(string);
console.log(encodedString); // 输出: "SGVsbG8gV29ybGQh"
// 解密
var decodedString = Base64.decode(encodedString);
console.log(decodedString); // 输出: "Hello World!"