Posted in Javascript onAugust 16, 2018
本文实例讲述了JS加密插件CryptoJS实现的DES加密。分享给大家供大家参考，具体如下：
前面一篇《JS加密插件CryptoJS实现AES加密操作》介绍了CryptoJS插件的简单配置与使用，这里再来看看CryptoJS实现DES加密的方法：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Testing websockets</title>
<script type="text/javascript" src="jquery-1.10.1.js"></script>
<script src="tripledes.js"></script>
<script src="mode-ecb-min.js"></script>
<script type="text/javascript">
var key = 'BOTWAVEE';
//CBC模式加密
function encryptByDESModeCBC(message) {
var keyHex = CryptoJS.enc.Utf8.parse(key);
var ivHex = CryptoJS.enc.Utf8.parse(key);
encrypted = CryptoJS.DES.encrypt(message, keyHex, {
iv:ivHex,
mode: CryptoJS.mode.CBC,
padding:CryptoJS.pad.Pkcs7
}
);
return encrypted.ciphertext.toString();
}
//CBC模式解密
function decryptByDESModeCBC(ciphertext2) {
var keyHex = CryptoJS.enc.Utf8.parse(key);
var ivHex = CryptoJS.enc.Utf8.parse(key);
// direct decrypt ciphertext
var decrypted = CryptoJS.DES.decrypt({
ciphertext: CryptoJS.enc.Hex.parse(ciphertext2)
}, keyHex, {
iv:ivHex,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return decrypted.toString(CryptoJS.enc.Utf8);
}
//DES ECB模式加密
function encryptByDESModeEBC(message){
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();
}
//DES ECB模式解密
function decryptByDESModeEBC(ciphertext){
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;
}
function test(){
var source = $("#source").val();
var cc = encryptByDESModeEBC(CryptoJS.enc.Utf8.parse(source));
$("#target").val(cc);
}
function test1(){
var source = $("#sourceS").val();
var dd = decryptByDESModeEBC(source);
$("#jiemi").val(dd);
}
</script>
</head>
<body>
<div>
加密前：<textarea id="source" value="" style="width:500px;height:90px;" /></textarea>
<hr>
加密后：<textarea id="target" value="" style="width:500px;height:90px;" ></textarea>
<hr>
<input type="button" onclick="test();" name="" value="加密" />
<hr>
密文：<textarea id="sourceS" value="" width="400px" style="width:500px;height:90px;" ></textarea>
<hr>
解密后：<textarea id="jiemi" value="" style="width:500px;height:90px;" ></textarea>
<hr>
<input type="button" onclick="test1();" name="" value="解密"/>
</div>
</body>
</html>
tripledes.js 为 DES主文件 自带 CBC模块
mode-ecb.js 为 DES ECB模块
使用CBC模式引入 tripledes.js
使用 ECB模式引入 tripledes.js + mode-ecb.js
JS加密插件CryptoJS实现的DES加密示例
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