如何在javascript中使用node-js crypto？

Question

我需要以下加密解密，但在客户端的java脚本。这段代码是用Node-JS写的，使用加密库，我找不到客户端运行的java脚本的相同解决方案。

const crypto = require('crypto');

const decrypt = (textBase64, keyBase64, ivBase64) => {
    const algorithm = 'aes-256-cbc';
    const ivBuffer = Buffer.from(ivBase64, 'base64');
    const keyBuffer = Buffer.from(keyBase64, 'base64');

    const decipher = crypto.createDecipheriv(algorithm, keyBuffer, ivBuffer);
    decipher.setAutoPadding(false);

    let decrypted = decipher.update(textBase64, 'base64', 'utf8');
    decrypted += decipher.final('utf8');
    return decrypted;
}

const encryptedMessage = '';


const key = 'cGFzc3dvcmQxMjM0NTY3ODk=';

const iv = Buffer.from(encryptedMessage, 'base64').slice(0, 16);

// the message comes from the bytes AFTER the IV - this is what you should decrypt
const message = Buffer.from(encryptedMessage, 'base64').slice(16);

const result = decrypt(message, key, iv);
console.log(result);
//console.log(Buffer.from(encryptedMessage, 'base64').slice(0, 16))

Answer 1

首先，我想说的是，不推荐在客户端解密，因为密钥是可见的。但你知道你在做什么。

这个库是纯JS的，应该可以在浏览器中轻松地工作：ricmoo/aes-js