Question

我可以使用Node的加密库解密AES加密消息，如下所示

const crypto = require('crypto');
const encryptedData = 'b6ab428efbcb93c2f483178114ac0608530e54428f1378c6d3be108531b730d1888e562044cd3acb8844a04d9d7602d83b96f0a758248ffd07cd9c530b76c91c';

const decryptResponse2 = (data) => {
  const key = 'F5:A4:F4:AB:BF:68:CF:86:51:B4:AA';
  const iv = Buffer.from(data.substring(0, 32), 'hex');
  const payload = data.substring(32);
  const decipher = crypto.createDecipheriv('aes-256-cbc', key, iv).setAutoPadding(false);
  const decipherFinal = decipher.update(payload, 'hex', 'utf8') +   decipher.final('utf8');

  console.log(decipherFinal);
};

decryptResponse2(encryptedData);

我使用crypto-js库创建了一个脚本，因为该脚本可在浏览器中使用。我尝试的代码如下：

const crypto = require('crypto-js');
const encryptedData = 'b6ab428efbcb93c2f483178114ac0608530e54428f1378c6d3be108531b730d1888e562044cd3acb8844a04d9d7602d83b96f0a758248ffd07cd9c530b76c91c';

const decryptResponse = (data) => {
  const key = 'F5:A4:F4:AB:BF:68:CF:86:51:B4:AA';
  const iv = Buffer.from(data.substring(0, 32), 'hex');
  const payload = data.substring(32);
  let decryptedData = crypto.AES.decrypt(
    payload,
    key,
    {
      iv: iv,
      mode: crypto.mode.CBC,
      padding: crypto.pad.NoPadding
    });
  console.log(decryptedData.toString());
}

decryptResponse(encryptedData);

但是，不仅会生成错误的解密数据，而且解密后的消息甚至不一致。我不知道自己在做什么错，因为我对加密和解密不甚了解。

任何帮助都会得到帮助。

Answer 1

由于@GrafiCode将我指向right place，所以我能够使用配置对象的format属性来解决它。

以下是代码：

const crypto = require('crypto-js');
const encryptedData = 'b6ab428efbcb93c2f483178114ac0608530e54428f1378c6d3be108531b730d1888e562044cd3acb8844a04d9d7602d83b96f0a758248ffd07cd9c530b76c91c';

const decryptResponse = (data) => {
  const key = crypto.enc.Utf8.parse('F5:A4:F4:AB:BF:68:CF:86:51:B4:AA');
  const iv = crypto.enc.Hex.parse(data.substring(0, 32));
  const payload = data.substring(32);
  let decryptedData = crypto.AES.decrypt(
    payload,
    key,
    {
      iv: iv,
      mode: crypto.mode.CBC,
      // padding: crypto.pad.NoPadding,
      format: crypto.format.Hex
    });
  console.log(crypto.enc.Utf8.stringify(decryptedData));
}

decryptResponse(encryptedData);

我将padding: crypto.pad.NoPadding注释掉了，因为在启用解密数据的末尾有不可打印的字符。

如何使用CryptoJS AES解密消息？我有一个工作节点加密示例

1 个答案: