247 lines
9.6 KiB
C#
247 lines
9.6 KiB
C#
using System;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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using System.Windows;
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using System.Windows.Controls;
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using iNKORE.UI.WPF.Modern;
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using Microsoft.Win32;
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Generators;
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using Org.BouncyCastle.OpenSsl;
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using Org.BouncyCastle.Security;
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namespace KeyGen
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{
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/// <summary>
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/// MainWindow.xaml 的交互逻辑
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/// </summary>
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public partial class MainWindow
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{
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public MainWindow()
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{
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InitializeComponent();
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}
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private void LicenseClick(object sender, RoutedEventArgs e)
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{
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DateTime issueDate = DateTime.Now;
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//DateTime expiryDate = issueDate.AddYears(1);
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var expiryDate = ExpiryDatePicker.SelectedDate;
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if (expiryDate == null)
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{
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Message.Text = ("请选择授权到期时间");
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return;
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}
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if (expiryDate < issueDate)
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{
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Message.Text = ("授权到期时间有误，应比发码日期晚");
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return;
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}
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string mCode = MachineCodeTextBox.Text.Trim().ToUpper();
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if (string.IsNullOrEmpty(mCode))
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{
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Message.Text = ("请先获取机器码");
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return;
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}
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string key = SignData(mCode, issueDate, expiryDate, PrivateKeyTextBox.Text);
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LicenseTextBox.Text = key;
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Clipboard.SetText(key);
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Message.Text = "激活码已复制！";
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}
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private void GenerateKeyClick(object sender, RoutedEventArgs e)
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{
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//using (var rsa = new RSACryptoServiceProvider(2048))
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//{
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// PublicKeyTextBox.Text = rsa.ToXmlString(false); // 放在插件里
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// PrivateKeyTextBox.Text = rsa.ToXmlString(true); // 自己妥善保存
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//}
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// 1. 生成 RSA 密钥对
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RsaKeyPairGenerator generator = new RsaKeyPairGenerator();
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generator.Init(new KeyGenerationParameters(new SecureRandom(), 2048));
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AsymmetricCipherKeyPair keyPair = generator.GenerateKeyPair();
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// 2. 导出公钥为 PEM 格式 (SubjectPublicKeyInfo - OpenSSL 兼容)
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using (StringWriter sw = new StringWriter())
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{
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PemWriter pemWriter = new PemWriter(sw);
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pemWriter.WriteObject(keyPair.Public);
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PublicKeyTextBox.Text = sw.ToString();
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}
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// 3. 导出私钥为 PEM 格式 (PKCS#1 格式)
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using (StringWriter sw = new StringWriter())
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{
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PemWriter pemWriter = new PemWriter(sw);
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pemWriter.WriteObject(keyPair.Private);
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PrivateKeyTextBox.Text = sw.ToString();
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}
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}
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public string SignData(string machineCode, DateTime issue, DateTime? expiry, string privateKeyPem)
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{
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if (expiry == null)
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{
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throw new ArgumentNullException(nameof(expiry), "Expiry date cannot be null.");
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}
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// 1. 严格格式化日期
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string issueStr = issue.ToString("yyyy-MM-dd");
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string expiryStr = expiry?.ToString("yyyy-MM-dd");
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// 2. 拼接原始数据 (必须带上 |)
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string dataToSign = $"{machineCode}{issueStr}{expiryStr}";
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// 3. 使用 BouncyCastle 签名
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ISigner signer = SignerUtilities.GetSigner("SHA-256withRSA");
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using (StringReader sr = new StringReader(privateKeyPem))
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{
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PemReader pr = new PemReader(sr);
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AsymmetricCipherKeyPair keyPair = (AsymmetricCipherKeyPair)pr.ReadObject();
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signer.Init(true, keyPair.Private);
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}
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byte[] dataBytes = Encoding.UTF8.GetBytes(dataToSign);
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signer.BlockUpdate(dataBytes, 0, dataBytes.Length);
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byte[] sigBytes = signer.GenerateSignature();
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string signature = Convert.ToBase64String(sigBytes);
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// 4. 返回最终激活码
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return $"{signature}|{machineCode}|{issueStr}|{expiryStr}";
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}
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private string CreateLicense(string machineCode, DateTime issue, DateTime expiry)
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{
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string issueStr = issue.ToString("yyyy-MM-dd");
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string expiryStr = expiry.ToString("yyyy-MM-dd");
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// 签名原始数据：机器码 + 发码日期 + 过期日期
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string dataToSign = $"{machineCode}|{issueStr}|{expiryStr}";
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using (var rsa = new RSACryptoServiceProvider())
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{
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rsa.FromXmlString(PrivateKeyTextBox.Text);
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var formatter = new RSAPKCS1SignatureFormatter(rsa);
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formatter.SetHashAlgorithm("SHA256");
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byte[] dataBytes = Encoding.UTF8.GetBytes(dataToSign);
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using (var sha = SHA256.Create())
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{
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byte[] hash = sha.ComputeHash(dataBytes);
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string signature = Convert.ToBase64String(formatter.CreateSignature(hash));
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// 最终格式：签名|机器码|发码日期|过期日期
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return $"{signature}|{machineCode}|{issueStr}|{expiryStr}";
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}
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}
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}
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private void SaveKeysClick(object sender, RoutedEventArgs e)
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{
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VistaFolderBrowserDialog dialog = new VistaFolderBrowserDialog();
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if (dialog.ShowDialog())
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{
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string publicKeyPath = System.IO.Path.Combine(dialog.SelectedPath, "PublicKey.txt");
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File.WriteAllText(publicKeyPath, PublicKeyTextBox.Text);
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string privateKeyPath = System.IO.Path.Combine(dialog.SelectedPath, "PrivateKey.txt");
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File.WriteAllText(privateKeyPath, PrivateKeyTextBox.Text);
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Message.Text = ($"公私密钥已保存到：{dialog.SelectedPath}");
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}
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}
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private void SaveLicenseClick(object sender, RoutedEventArgs e)
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{
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VistaFolderBrowserDialog dialog = new VistaFolderBrowserDialog();
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if (dialog.ShowDialog())
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{
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string path = System.IO.Path.Combine(dialog.SelectedPath, "license.txt");
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File.WriteAllText(path, LicenseTextBox.Text);
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Message.Text = ($"激活码已保存到：{path}");
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}
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}
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private void ImportPrivateKeyClick(object sender, RoutedEventArgs e)
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{
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OpenFileDialog dialog = new OpenFileDialog()
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{
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Filter = "文本文件 (*.txt)|*.txt|所有文件 (*.*)|*.*"
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};
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if (dialog.ShowDialog() == true)
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{
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string privateKey = File.ReadAllText(dialog.FileName);
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PrivateKeyTextBox.Text = privateKey;
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Message.Text = ($"导入文件私钥完成");
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}
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}
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private void ToggleTheme_Click(object sender, RoutedEventArgs e)
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{
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if (ThemeManager.Current.ApplicationTheme == ApplicationTheme.Dark)
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{
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ThemeManager.Current.ApplicationTheme = ApplicationTheme.Light;
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}
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else
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{
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ThemeManager.Current.ApplicationTheme = ApplicationTheme.Dark;
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}
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}
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/// <summary>
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/// 生成通用的 6 位应急码
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/// </summary>
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/// <param name="durationTag">"1D", "7D", 或 "30D"</param>
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public static string GenerateGlobalOTP(string durationTag, string salt)
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{
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string secret = salt + durationTag;
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// 计算天数步长
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long unixTime = (long)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;
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long step = unixTime / 86400;
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byte[] secretBytes = Encoding.UTF8.GetBytes(secret);
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// 字符表必须严格一致
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string charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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// 步长转 8 字节大端
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byte[] stepBytes = BitConverter.GetBytes(step);
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if (BitConverter.IsLittleEndian) Array.Reverse(stepBytes);
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byte[] msg = new byte[8];
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Array.Copy(stepBytes, 0, msg, 8 - stepBytes.Length, stepBytes.Length);
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using (var hmac = new HMACSHA1(Encoding.UTF8.GetBytes(secret)))
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{
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byte[] hash = hmac.ComputeHash(msg);
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int offset = hash[hash.Length - 1] & 0xf;
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uint binary = (uint)(((hash[offset] & 0x7f) << 24) | ((hash[offset + 1] & 0xff) << 16) | ((hash[offset + 2] & 0xff) << 8) | (hash[offset + 3] & 0xff));
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string code = "";
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for (int i = 0; i < 6; i++)
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{
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code += charset[(int)(binary % (uint)charset.Length)];
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binary /= (uint)charset.Length;
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}
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return code;
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}
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}
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private void DynamicLicenseClick(object sender, RoutedEventArgs e)
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{
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if (DynamicDurationComboBox.SelectedItem is not ComboBoxItem selectedItem)
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{
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Message.Text = ("请选择授权时长");
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return;
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}
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if (string.IsNullOrEmpty(SaltTextBox.Text))
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{
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Message.Text = ("请设置Salt值");
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return;
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}
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string durationTag = selectedItem.Tag.ToString();
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string salt = SaltTextBox.Text.Trim();
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string globalOTP = GenerateGlobalOTP(durationTag, salt);
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DynamicLicenseTextBox.Text = globalOTP;
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Clipboard.SetText(globalOTP);
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Message.Text = "动态应急码已复制！";
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}
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}
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}
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