需要下载的DLL和驱动
介于公司项目为C#项目进行的加密开发，用前几张文章所学到的TrueCrypt项目开启4个重要的入口点：
- 创建加密卷
- 加载加密卷
- 卸载加密卷
- 修改密码
- 加载驱动
- 安装驱动
using Microsoft.Win32; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Runtime.InteropServices; using System.ServiceProcess; using System.Text; namespace ICT.NetHandleLibrary { public class TrueCryptHelper { Logger<TrueCryptHelper> log = new Logger<TrueCryptHelper>(); [DllImport("TrueCryptFormat.dll", EntryPoint = "FormatVolumeC", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)] private extern static int FormatVolumeC(string fileUrl, string pwd, Int64 size); [DllImport("TrueCrypt.dll", EntryPoint = "MountVolumeC", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)] private extern static int MountVolumeC(string fileUrl, string pwd, int driveNo); [DllImport("TrueCrypt.dll", EntryPoint = "UnmountVolumeC", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)] private extern static int UnmountVolumeC(int driveNo); [DllImport("TrueCrypt.dll", EntryPoint = "ChangePasswordC", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)] private extern static int ChangePasswordC(string szFile, string szoldPassword, string sznewPassowrd, IntPtr hwndDlg); [DllImport("TrueCrypt.dll", EntryPoint = "DriverLoadC", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)] private extern static int DriverLoadC(); [DllImport("TrueCrypt.dll", EntryPoint = "DriverInstallC", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)] private extern static bool DriverInstallC(); [DllImport("kernel32.dll", SetLastError = true)] static extern bool Wow64DisableWow64FsRedirection(ref IntPtr ptr); [DllImport("kernel32.dll", SetLastError = true)] static extern bool Wow64RevertWow64FsRedirection(IntPtr ptr); public int Format(string fileUrl, string pwd, Int64 size) { return FormatVolumeC(fileUrl, pwd, size); } public int Mount(string fileUrl, string pwd, int driveNo) { return MountVolumeC(fileUrl, pwd, driveNo); } public int Unmount(int driveNo) { return UnmountVolumeC(driveNo); } public int ChangePwd(string szFile, string szoldPassword, string sznewPassword, IntPtr intPtr) { return ChangePasswordC(szFile, szoldPassword, sznewPassword, intPtr); } public int StartDrvice() { return DriverLoadC(); } public bool InstallDrvice() { return DriverInstallC(); } public static bool CheckRegedit() { string isUrl = @"SYSTEM\CurrentControlSet\Services"; string itemName = "truecrypt"; RegistryKey subKey = Registry.LocalMachine.OpenSubKey(isUrl); string[] keyNames = subKey.GetSubKeyNames(); subKey.Close(); bool result = false; foreach (var keyName in keyNames) { if (itemName.Equals(keyName)) { result = true; break; } } return result; } public static bool executeRegedit() { try { executeReg(@"SYSTEM\CurrentControlSet\Services", "truecrypt", "DisplayName", "truecrypt", RegistryValueKind.String); executeReg(@"SYSTEM\CurrentControlSet\Services", "truecrypt", "ErrorControl", "1", RegistryValueKind.DWord); executeReg(@"SYSTEM\CurrentControlSet\Services", "truecrypt", "ImagePath", @"System32\drivers\truecrypt.sys", RegistryValueKind.String); executeReg(@"SYSTEM\CurrentControlSet\Services", "truecrypt", "Start", "1", RegistryValueKind.DWord); executeReg(@"SYSTEM\CurrentControlSet\Services", "truecrypt", "Type", "1", RegistryValueKind.DWord); executeReg(@"SYSTEM\CurrentControlSet\Services", "truecrypt", "WOW64", "1", RegistryValueKind.DWord); } catch { return false; } return true; } /// <summary> /// 操作注册表(HKEY_LOCAL_MACHINE) /// </summary> /// <param name="isUrl">判断是否有某项的上一级路径</param> /// <param name="itemName">项名称</param> /// <param name="key">键</param> /// <param name="value">值</param> /// <returns></returns> public static bool executeReg(string isUrl, string itemName, string key, string value, RegistryValueKind type) { RegistryKey subKey = Registry.LocalMachine.OpenSubKey(isUrl); string[] keyNames = subKey.GetSubKeyNames(); subKey.Close(); bool result = false; foreach (var keyName in keyNames) { if (itemName.Equals(keyName)) { result = true; break; } } if (!result) { RegistryKey regkey = Registry.LocalMachine; RegistryKey software = regkey.CreateSubKey(isUrl + "\\" + itemName); software.Close(); result = true; } RegistryKey regKey = Registry.LocalMachine; RegistryKey openKey = regKey.OpenSubKey(isUrl + "\\" + itemName, true); openKey.SetValue(key, value, type); regKey.Close(); return result; } public bool copySysDrive() { try { IntPtr Wow64value = IntPtr.Zero; Wow64DisableWow64FsRedirection(ref Wow64value); if (!File.Exists(@"C:\Windows\System32\drivers\truecrypt.sys")) { log.Info("驱动不存在"); string pLocalFilePath = AppDomain.CurrentDomain.BaseDirectory + "truecrypt.sys";//要复制的文件路径 string pLocalFilePath64 = AppDomain.CurrentDomain.BaseDirectory + "truecrypt-x64.sys";//要复制的文件路径 string pSaveFilePath = @"C:\Windows\System32\drivers";//指定存储的路径 if (File.Exists(pLocalFilePath))//必须判断要复制的文件是否存在 { log.Info("准备复制" + pLocalFilePath + "," + pSaveFilePath); File.Copy(pLocalFilePath, pSaveFilePath + "\\truecrypt.sys", true);//三个参数分别是源文件路径，存储路径，若存储路径有相同文件是否替换 } if (File.Exists(pLocalFilePath64))//必须判断要复制的文件是否存在 { log.Info("准备复制" + pLocalFilePath64+ "," + pSaveFilePath); File.Copy(pLocalFilePath64, pSaveFilePath + "\\truecrypt-x64.sys", true);//三个参数分别是源文件路径，存储路径，若存储路径有相同文件是否替换 } } Wow64RevertWow64FsRedirection(Wow64value); } catch (Exception ex) { log.Error(ex.ToString()); return false; } return true; } public bool SysDriveState() { try { var server = System.ServiceProcess.ServiceController.GetDevices().FirstOrDefault(service => service.ServiceName == "truecrypt"); return server.Status != ServiceControllerStatus.Running ? false : true; } catch { return false; } } public int GetDriveToMount() { const int ASCII_OFFSET = 65; int driveToMount = -1; DriveInfo[] allDrives = DriveInfo.GetDrives(); List<char> driveLetters = new List<char>(); List<int> trueCryptDriveLetter = new List<int>(); foreach (DriveInfo d in allDrives) { // Retrieve just the drive letter char filteredName = d.Name.ElementAt<char>(0); driveLetters.Add(filteredName); } foreach (char driveChar in driveLetters) { trueCryptDriveLetter.Add((int)driveChar - ASCII_OFFSET); } // Chose random drive which is available // Chose a number between 0 and 25 excluding the drives already in use Random random = new Random(); do { driveToMount = random.Next(15, 25); } while (trueCryptDriveLetter.Contains(driveToMount)); return driveToMount; } } }文章来源: C#磁盘或U盘加密（创建加密区）