.NET中的序列号(注册密钥)算法

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

public class SerialNumberGenerator
{
    public static string GenerateSerialNumber()
    {
        // 获取硬件信息
        string cpuInfo = GetCpuInfo();
        string diskInfo = GetDiskInfo();

        // 生成随机数
        string random = GetRandomString();

        // 拼接序列号
        string serialNumber = $"{cpuInfo}-{diskInfo}-{random}";

        // 加密序列号
        string encryptedSerialNumber = EncryptSerialNumber(serialNumber);

        return encryptedSerialNumber;
    }

    private static string GetCpuInfo()
    {
        // 获取CPU序列号
        return "CPU_SERIAL_NUMBER";
    }

    private static string GetDiskInfo()
    {
        // 获取硬盘序列号
        return "DISK_SERIAL_NUMBER";
    }

    private static string GetRandomString()
    {
        // 生成随机数
        var randomBytes = new byte[16];
        using (var rng = RandomNumberGenerator.Create())
        {
            rng.GetBytes(randomBytes);
        }
        return Convert.ToBase64String(randomBytes);
    }

    private static string EncryptSerialNumber(string serialNumber)
    {
        // 加密序列号
        using (var aes = Aes.Create())
        {
            aes.GenerateIV();
            aes.GenerateKey();
            var encryptedBytes = EncryptStringToBytes(serialNumber, aes.Key, aes.IV);
            return Convert.ToBase64String(encryptedBytes);
        }
    }

    private static byte[] EncryptStringToBytes(string plainText, byte[] key, byte[] iv)
    {
        // 加密字符串到字节数组
        using (var aes = Aes.Create())
        using (var encryptor = aes.CreateEncryptor(key, iv))
        using (var ms = new MemoryStream())
        using (var cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write))
        using (var sw = new StreamWriter(cs))
        {
            sw.Write(plainText);
            sw.Flush();
            cs.FlushFinalBlock();
            return ms.ToArray();
        }
    }
}