如何在c#中安全地存储webhook url

using System;
using System.Security.Cryptography;
using System.Text;

public class WebhookManager
{
    private const string EncryptionKey = "YourEncryptionKey"; // 加密密钥，确保保密

    public string EncryptWebhookUrl(string url)
    {
        byte[] encryptedBytes;

        using (Aes aes = Aes.Create())
        {
            aes.Key = Encoding.UTF8.GetBytes(EncryptionKey);
            aes.GenerateIV();

            ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);

            byte[] urlBytes = Encoding.UTF8.GetBytes(url);

            using (var ms = new System.IO.MemoryStream())
            {
                ms.Write(aes.IV, 0, aes.IV.Length);
                using (var cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write))
                {
                    cs.Write(urlBytes, 0, urlBytes.Length);
                }
                encryptedBytes = ms.ToArray();
            }
        }

        return Convert.ToBase64String(encryptedBytes);
    }

    public string DecryptWebhookUrl(string encryptedUrl)
    {
        byte[] encryptedBytes = Convert.FromBase64String(encryptedUrl);

        using (Aes aes = Aes.Create())
        {
            aes.Key = Encoding.UTF8.GetBytes(EncryptionKey);

            byte[] iv = new byte[aes.IV.Length];
            Array.Copy(encryptedBytes, iv, aes.IV.Length);
            aes.IV = iv;

            ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);

            using (var ms = new System.IO.MemoryStream())
            {
                using (var cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Write))
                {
                    cs.Write(encryptedBytes, aes.IV.Length, encryptedBytes.Length - aes.IV.Length);
                }
                byte[] decryptedBytes = ms.ToArray();
                return Encoding.UTF8.GetString(decryptedBytes);
            }
        }
    }
}

public class Program
{
    public static void Main()
    {
        string webhookUrl = "https://example.com/webhook";

        WebhookManager manager = new WebhookManager();

        // 存储加密的Webhook URL
        string encryptedUrl = manager.EncryptWebhookUrl(webhookUrl);
        Console.WriteLine("Encrypted URL: " + encryptedUrl);

        // 从存储中获取并解密Webhook URL
        string decryptedUrl = manager.DecryptWebhookUrl(encryptedUrl);
        Console.WriteLine("Decrypted URL: " + decryptedUrl);
    }
}