样式demo

ShrlAlgoToolkit.Core/Assists/LicenseEngine.cs

@@ -0,0 +1,174 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Management;
+using System.Net;
+using System.Reflection;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Win32;
+
+namespace ShrlAlgoToolkit.Core.Assists
+{
+    public class LicenseEngine
+    {
+        // 【重要】替换为你生成的公钥
+        private const string PublicKey = @"<RSAKeyValue><Modulus>rd5+EjU6QxaTY/AalU9g6ugAquN0ahJSgeahnf2CrfvUAWFNJ+SH7Qr0RcvOTyAbWfvLWoBDACKaPsg+8nRQcO3EZdFyjJ9oycLNrw38+gSB2+/79Axys/8MHtSXVUw9WN2e9LxeHOQGtcaoSsp+bPGaXswthovQ2CkvBTmCokcAOX6UaR7Av4npaXyEoGCUsZLEiSydMsNbQ+wLsumVg1H2o/cpkO0s4DiJHoF66zUuxA+pYSjSCn5KTUsOemf+gBsob6Sw+7WOToyiOkMdO9Op6esf8yL7DJ1Yd40XaKd5IeLQmEX/b+n1EV2JEkGO0p9q9MQRp6NrEc9LvfMJWQ==</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>";
+
+        private static string RegPath = @$"Software\{Assembly.GetExecutingAssembly().GetName()}\License";
+
+        /// <summary>
+        /// 完整验证逻辑
+        /// </summary>
+        public static (bool isValid, string message) Validate()
+        {
+            string licenseKey = LoadFromRegistry("Key");
+            if (string.IsNullOrEmpty(licenseKey)) return (false, "未找到授权码");
+
+            try
+            {
+                // 1. RSA 解密/验证逻辑
+                // 激活码格式：签名(Base64)|机器码|到期日期
+                var parts = licenseKey.Split('|');
+                if (parts.Length != 3) return (false, "授权格式非法");
+
+                string signature = parts[0];
+                string mCode = parts[1];
+                string expiryStr = parts[2];
+
+                // 2. 验证是否是本机的机器码
+                if (mCode != GetMachineCode()) return (false, "授权码与本机硬件不匹配");
+
+                // 3. 验证 RSA 签名（确保数据没被篡改）
+                if (!VerifySignature($"{mCode}|{expiryStr}", signature)) return (false, "授权签名校验失败");
+
+                // 4. 时间校验
+                DateTime expiryDate = DateTime.ParseExact(expiryStr, "yyyyMMdd", CultureInfo.InvariantCulture);
+                DateTime now = GetRobustDateTime();
+
+                // 防回滚检查
+                DateTime lastRun = GetLastRunTime();
+                if (now < lastRun) return (false, "系统时间异常，请检查时钟");
+                UpdateLastRunTime(now);
+
+                if (now > expiryDate) return (false, $"授权已于 {expiryDate:yyyy-MM-dd} 到期");
+
+                return (true, "授权有效");
+            }
+            catch { return (false, "解析授权出错"); }
+        }
+
+        private static bool VerifySignature(string data, string signature)
+        {
+            using (var rsa = new RSACryptoServiceProvider())
+            {
+                rsa.FromXmlString(PublicKey);
+                var formatter = new RSAPKCS1SignatureDeformatter(rsa);
+                formatter.SetHashAlgorithm("SHA256");
+                byte[] dataBytes = Encoding.UTF8.GetBytes(data);
+                using (var sha = SHA256.Create())
+                {
+                    byte[] hash = sha.ComputeHash(dataBytes);
+                    return formatter.VerifySignature(hash, Convert.FromBase64String(signature));
+                }
+            }
+        }
+
+        public static string GetMachineCode()
+        {
+            // 组合 CPU ID + 硬盘 ID
+            string raw = GetHardwareId("Win32_Processor", "ProcessorId") +
+                         GetHardwareId("Win32_PhysicalMedia", "SerialNumber");
+            using (var sha = SHA256.Create())
+            {
+                byte[] hash = sha.ComputeHash(Encoding.UTF8.GetBytes(raw));
+                return BitConverter.ToString(hash).Replace("-", "").Substring(0, 16);
+            }
+        }
+
+        private static string GetHardwareId(string wmiClass, string property)
+        {
+            try
+            {
+                using (var mc = new ManagementClass(wmiClass))
+                    foreach (var mo in mc.GetInstances()) return mo[property]?.ToString().Trim();
+            }
+            catch { }
+            return "UNKNOWN";
+        }
+
+        // 获取可靠的时间（网络优先，本地其次）
+        private static DateTime GetRobustDateTime()
+        {
+            try
+            {
+                var request = WebRequest.Create("http://www.baidu.com");
+                request.Timeout = 2000;
+                using (var response = request.GetResponse())
+                {
+                    string dateStr = response.Headers["Date"];
+                    return DateTime.ParseExact(dateStr, "ddd, dd MMM yyyy HH:mm:ss 'GMT'", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
+                }
+            }
+            catch { return DateTime.Now; }
+        }
+
+        #region 注册表操作
+        private static DateTime GetLastRunTime()
+        {
+            string val = LoadFromRegistry("T");
+            return string.IsNullOrEmpty(val) ? DateTime.MinValue : new DateTime(long.Parse(val));
+        }
+        private static void UpdateLastRunTime(DateTime now) => SaveToRegistry("T", now.Ticks.ToString());
+
+        public static void SaveToRegistry(string key, string val)
+        {
+            using var r = Registry.CurrentUser.CreateSubKey(RegPath);
+            r.SetValue(key, val);
+        }
+        private static string LoadFromRegistry(string key)
+        {
+            using var r = Registry.CurrentUser.OpenSubKey(RegPath);
+            return r?.GetValue(key)?.ToString();
+        }
+        /// <summary>
+        /// 仅移除当前的激活码（重置授权状态，但保留时间戳防止白嫖）
+        /// </summary>
+        public static void ClearLicenseKey()
+        {
+            try
+            {
+                using (var r = Registry.CurrentUser.OpenSubKey(RegPath, true))
+                {
+                    if (r != null && r.GetValue("Key") != null)
+                    {
+                        r.DeleteValue("Key");
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("移除授权码失败: " + ex.Message);
+            }
+        }
+
+        /// <summary>
+        /// 彻底销毁所有授权痕迹（包括时间戳记录，通常用于卸载）
+        /// </summary>
+        public static void DestroyAllLicenseData()
+        {
+            try
+            {
+                // 第二个参数为 false 表示：如果路径不存在，不抛出异常
+                Registry.CurrentUser.DeleteSubKeyTree(RegPath, false);
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("彻底清理注册表失败: " + ex.Message);
+            }
+        }
+        #endregion
+    }
+}

ShrlAlgoToolkit.Core/ShrlAlgoToolkit.Core.csproj

@@ -16,5 +16,8 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="System.Configuration" />
+    <Reference Include="System.Management">
+      <HintPath>C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6.2\System.Management.dll</HintPath>
+    </Reference>
   </ItemGroup>
 </Project>