在PHP 7中加密，在Node.js中解密

我需要在PHP中加密数据，在Node.js中解密

我用PHP对其进行加密：

$encrypt_method = "AES-256-CBC";
$secret_key = '7CEsPlLfVXcHf2S4wsnPnfNqYa+N/D/1zCXExN4aJSs=';
$secret_iv = 'StqUaIcbO9LFZ9QiuguXR6M/BepqZDV8p1now0FA/C4=';
// hash
$key = hash('sha256', $secret_key);

// iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning
$iv = substr(hash('sha256', $secret_iv), 0, 16);
$output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
$output = base64_encode($output);

结果:

VU5pckRaWHA4bjNaUjU3dGhscys3QT09

并在Node.js中解密：

var 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 = 'VU5pckRaWHA4bjNaUjU3dGhscys3QT09';
const key = '7CEsPlLfVXcHf2S4wsnPnfNqYa+N/D/1zCXExN4aJSs=';
const iv = Buffer.from('StqUaIcbO9LFZ9QiuguXR6M/BepqZDV8p1now0FA/C4=', '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);

res.send("Decrypted: " + result);

错误：错误：0606508A:数字信封例程：EVP_DecryptFinal_ex:数据不是块长度的倍数

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我不理解错误消息，请帮助制作一个工作示例。

您的

entryptedMessage

已两次转换为Base 64，正常吗？另外，您读过这个问题吗：？php代码不会从base64提取bin数据，但node.js会。另外，您的node.js代码也遗漏了php散列（'sha256'，ivBuffer）.slice（0,16）的步骤。在OPENSSL_加密中也使用OPENSSL_ZERO_填充而不是零