php令牌加密

<?php
// 加密函数
function encryptToken($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);
}

// 解密函数
function decryptToken($token, $key) {
    $token = base64_decode($token);
    list($iv, $encrypted) = explode('::', $token, 2);
    return openssl_decrypt($encrypted, 'aes-256-c6', $key, 0, $iv);
}

// 示例数据
$data = 'user_id:12345';
$key = 'your_encryption_key'; // 确保这是一个安全的密钥

// 加密令牌
$token = encryptToken($data, $key);
echo "Encrypted Token: " . $token . "\n";

// 解密令牌
$decryptedData = decryptToken($token, $key);
echo "Decrypted Data: " . $decryptedData . "\n";
?>