前端js实现DES的加密与解密

JavaScript实现DES的加密与解密

1.需要引入JS包：cryptojs.js

<script src="https://cdn.bootcss.com/crypto-js/3.1.9-1/crypto-js.min.js"></script>

2.js的DES加密

//DES加密

function encryptByDES(message, key){
    var keyHex = CryptoJS.enc.Utf8.parse(key);
    var encrypted = CryptoJS.DES.encrypt(message, keyHex, {
        mode: CryptoJS.mode.ECB,
        padding: CryptoJS.pad.Pkcs7
    });
    return encrypted.ciphertext.toString();
}

3.js的DES解密

//DES解密
function decryptByDES(ciphertext, key){
    var keyHex = CryptoJS.enc.Utf8.parse(key);
    var decrypted = CryptoJS.DES.decrypt({
        ciphertext: CryptoJS.enc.Hex.parse(ciphertext)
    }, keyHex, {
        mode: CryptoJS.mode.ECB,
        padding: CryptoJS.pad.Pkcs7
    });
    var result_value = decrypted.toString(CryptoJS.enc.Utf8);
    return result_value;
}

4.运用实例

var message = '18616563858';    //需要加密的数据
var key = 'pptv';	    	//加密key
//加密
desMessage = encryptByDES(message, key);
console.log(desMessage);
//解密
message = decryptByDES(desMessage,key)
console.log(message);