php网站域名加密授权系统

// 示例代码：简单的AES加密和解密
function encrypt($data, $key) {
    $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length('aes-256-cbc'));
    $encrypted = openssl_encrypt($data, 'aes-256-cbc', $key, 0, $iv);
    return base64_encode($iv . $encrypted);
}

function decrypt($data, $key) {
    $data = base64_decode($data);
    $iv = substr($data, 0, 16);
    $encrypted = substr($data, 16);
    return openssl_decrypt($encrypted, 'aes-256-cbc', $key, 0, $iv);
}

// 示例代码：简单的授权验证
function verifyAuthorization($token) {
    $authorizedTokens = ['valid_token_1', 'valid_token_2']; // 假设的授权令牌列表
    if (in_array($token, $authorizedTokens)) {
        return true;
    } else {
        return false;
    }
}