nodejs版本DESede/CBC/PKCS5Padding算法封装(3des)

故事背景

最近对接了一个第三方支付,冠名PKU的支付项目,用的加密算法是:DESede/CBC/PKCS5Padding
其实就是类似AES/DES的对称加密,这个算法真的是坑爹了,网上搜索了一堆只有java版本是正常的,nodejs版本的各种问题,我了个乖乖,硬着头皮调了大半天,踩了N个坑,真的是无语了。talk is cheap,上代码!

核心代码

const crypto = require('crypto');

/**
 * base64编码
 * @param text
 * @returns {Buffer}
 */
function base64(text) {
    return Buffer.from(text, "base64");
};

/**
 * 加密
 *
 * @param text
 * @param secretKey
 * @returns {string}
 */
function encode(text, secretKey) {
    secretKey = base64(secretKey);
    const cipher = crypto.createCipheriv('des-ede3-cbc', secretKey, Buffer.alloc(8));
    const encrypted = cipher.update(text, 'utf8', 'base64');

    return encrypted + cipher.final('base64');
};


/**
 * 解密
 * @param encryptedBase64
 * @param secretKey
 * @returns {string}
 */
function decode(encryptedBase64, secretKey) {
    secretKey = base64(secretKey);
    const decipher = crypto.createDecipheriv('des-ede3-cbc', secretKey, Buffer.alloc(8));
    let decrypted = decipher.update(encryptedBase64, 'base64', 'utf8');
    decrypted += decipher.final('utf8');
    return decrypted;
};

运行结果

我们来运行一下

//待加密内容
let json = `{"name":"chenqionghe","cn":"雪山飞猪","content":"no pain no gain, light weight baby"}`;
//密钥
let key = 'mdgIaBrQjIKU30IIEpZS1dsFNOLX73nQ';
//加密
let encrypted = encode(json, key);
console.log(encrypted);
//解密
console.log(decode(encrypted, key));

输出

EPvugsT71sqeIDPuVuP0mx+cotWTJ3Bt+k5vIConcQmdyjIgF3GtQLSL+yCyxTfRQIjBFmkq7bQn6Nh0xOjMSm3C23AM1m3QwZLFQHH2t41X/4YyvCnv3YFtgDu+SosO
{"name":"chenqionghe","cn":"雪山飞猪","content":"no pain no gain, light weight baby"}

以上内容为chenqionghe踩坑封装,感谢lidong童鞋的倾情演出,转载请申明地址

posted @ 2020-08-14 11:51  雪山飞猪  阅读(148)  评论(0编辑  收藏