检查电脑本地IE 证书等操作 注册表辅助类

/// <summary>
/// 注册表辅助类
/// </summary>

public class RegistryHelper
    {
        #region 需要权限才可以操作
        private const string SoftName = "OfficeConvertService";//您的软件所用到的注册表节点，所有键值对将在该节下创建

        /// <summary>
        /// 取得注册表值 需要权限
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static string GetKeyValue(string name)
        {
            RegistryKey hkml = Registry.LocalMachine;
            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
            if (software != null)
            {
                RegistryKey subKeys = software.OpenSubKey(SoftName, true);
                if (subKeys != null)
                {
                    string registData = subKeys.GetValue(name).ToString();
                    return registData;
                }
            }
            return string.Empty;
        }

        /// <summary>
        /// 添加注册表键值对 需要权限
        /// </summary>
        /// <param name="key"></param>
        /// <param name="keyValue"></param>
        public static void AddKey(string key, string keyValue)
        {
            RegistryKey hklm = Registry.LocalMachine;
            RegistryKey software = hklm.OpenSubKey("SOFTWARE", true);
            if (software != null)
            {
                RegistryKey subKey = software.CreateSubKey(SoftName);
                if (subKey != null) subKey.SetValue(key, keyValue);
            }
        }

        /// <summary>
        /// 删除注册表键 需要权限
        /// </summary>
        /// <param name="key"></param>
        public static void DeleteKey(string key)
        {
            RegistryKey hkml = Registry.LocalMachine;
            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
            if (software != null)
            {
                RegistryKey subKey = software.OpenSubKey(SoftName, true);
                if (subKey != null)
                {
                    string[] aimnames = subKey.GetSubKeyNames();
                    foreach (string aimKey in aimnames)
                    {
                        if (aimKey == key)
                            subKey.DeleteSubKeyTree(key);
                    }
                }
            }
        }

        /// <summary>
        /// 检查注册表是否存在键 需要权限
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static bool IsRegisted(string key)
        {
            try
            {
                RegistryKey hkml = Registry.LocalMachine;
                RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
                if (software != null)
                {
                    RegistryKey subKeys = software.OpenSubKey(SoftName, true);
                    if (subKeys != null)
                    {
                        string[] keyNames = subKeys.GetValueNames();
                        foreach (string keyName in keyNames)
                        {
                            if (keyName == key)
                            {
                                return true;
                            }
                        }
                    }
                }
            }
            catch
            {
                return false;
            }
            return false;
        }
        #endregion


        /// <summary>
        /// 检查服务器证书是否吊销
        /// </summary>
        /// <param name="isOpen">1开启，0关闭</param>
        public void SetCertificateVerificationState(bool isOpen)
        {     
            var internetSettings = @"Software\Microsoft\Windows\CurrentVersion\Internet Settings";
            RegistryHelper.ModifyCurrentUserRegistryKey(internetSettings, "CertificateRevocation", isOpen ? "1" : "0");
        }
        /// <summary>
        /// 检查发行商的证书是否吊销
        /// </summary>
        /// <param name="isOpen"> 0 开启，512 取消</param>
        public void SetCertificatePublishingState(bool isOpen)
        {
            var softwarePublishing = @"Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing";
            RegistryHelper.ModifyCurrentUserRegistryKey(softwarePublishing, "State", isOpen ? "0" : "512 ");     
        }

        /// <summary>
        /// 修改IE安全等级为中
        /// </summary>
        public void SetInternetProtectLevelNormal()
        {
            //"CurrentLevel"=dword:00011000
            //"MinLevel" = dword:00011000
            //"RecommendedLevel" = dword:00011000

            var internetSettings = @"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3";
            RegistryHelper.ModifyCurrentUserRegistryKey(internetSettings, "CurrentLevel", "00011000");
            RegistryHelper.ModifyCurrentUserRegistryKey(internetSettings, "MinLevel", "00011000");
            RegistryHelper.ModifyCurrentUserRegistryKey(internetSettings, "RecommendedLevel", "00011000");
        }

        /// <summary>
        /// 设置SSL And TSL 是否勾选
        /// </summary>
        /// <param name="isOpen"></param>
        public static void SetSSLAndTSLState(bool isOpen)
        {
            //使用SSL3.0和TLS1.0
            var internetSettings = @"Software\Microsoft\Windows\CurrentVersion\Internet Settings";
            RegistryHelper.ModifyCurrentUserRegistryKey(internetSettings, "SecureProtocols", isOpen ? "2688" : "0");
        }
        /// <summary>
        /// 注册表修改
        /// </summary>
        /// <param name="registerPath">注册表地址</param>
        /// <param name="key">键</param>
        /// <param name="value">值</param>
        /// <returns></returns>
        public static bool ModifyCurrentUserRegistryKey(string registerPath, string key, string value)
        {
            RegistryKey currentUserKey = null;
            RegistryKey subKey = null;
            try
            {
                currentUserKey = Registry.CurrentUser;
                subKey = GetSubKey(currentUserKey, registerPath);

                if (subKey != null)
                {
                    subKey.SetValue(key, value, RegistryValueKind.DWord);
                    subKey.Close();
                    subKey.Dispose();
                }
            }
            catch (Exception e)
            {
                subKey?.Close();
                subKey?.Dispose();
                return false;
            }
            currentUserKey?.Close();
            currentUserKey?.Dispose();
            return true;
        }

        /// <summary>
        /// 检查注册表是否存在
        /// </summary>
        /// <param name="currentUserKey">注册键</param>
        /// <param name="registerPath">注册表地址</param>
        /// <returns></returns>
        private static RegistryKey GetSubKey(RegistryKey currentUserKey, string registerPath)
        {
            RegistryKey subKey;
            subKey = currentUserKey.OpenSubKey(registerPath, true);
            if (subKey == null)
            {
                subKey = currentUserKey.CreateSubKey(registerPath, RegistryKeyPermissionCheck.ReadWriteSubTree);
            }

            return subKey;
        }

        // <summary>
        /// 重置IE浏览器
        /// </summary>
        public void ResetInternetSetting()
        {
            var internetSettings = @"Software\Microsoft\Internet Explorer";
            RegistryHelper.DeleteCurrentUserRegistryPath(internetSettings);
        }

        /// <summary>
        /// 重置IE浏览器
        /// </summary>
        /// <param name="registerPath"></param>
        /// <returns></returns>
        public static bool DeleteCurrentUserRegistryPath(string registerPath)
        {
            RegistryKey currentUserKey = null;
            try
            {
                currentUserKey = Registry.CurrentUser;
                currentUserKey.DeleteSubKey(registerPath, false);
            }
            catch (Exception e)
            {
                return false;
            }
            currentUserKey?.Close();
            currentUserKey?.Dispose();
            return true;
        }
    }