php域名加密

<?php
// 加密函数
function encryptDomain($domain, $key) {
    $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length('aes-256-cbc'));
    $encrypted = openssl_encrypt($domain, 'aes-256-cbc', $key, 0, $iv);
    return base64_encode($iv . $encrypted);
}

// 解密函数
function decryptDomain($encryptedDomain, $key) {
    $data = base64_decode($encryptedDomain);
    $iv = substr($data, 0, 16);
    $encrypted = substr($data, 16);
    return openssl_decrypt($encrypted, 'aes-256-cbc', $key, 0, $iv);
}

// 示例使用
$key = 'your-secret-key'; // 确保密钥安全且保密
$domain = 'example.com';

$encryptedDomain = encryptDomain($domain, $key);
echo "Encrypted Domain: " . $encryptedDomain . "\n";

$decryptedDomain = decryptDomain($encryptedDomain, $key);
echo "Decrypted Domain: " . $decryptedDomain . "\n";
?>