C#加密app.config中连接字符串的代码

这篇文章主要介绍了C#加密app.config中连接字符串的方法,涉及C#配置文件加密的相关实现技巧,具有一定参考借鉴价值,需要的朋友可以参考下:

本文实例讲述了C#加密app.config中连接字符串的方法。分享给大家供大家参考。具体如下：

连接字符串中包含数据库的访问信息，帐号和密码，因此一般不以明文显示，本代码用来加密连接字符串。

public static class EncryptConnection

{

  public static void EncryptConnectionString(bool encrypt)

  {

   Configuration configFile = null;

   try

   {

    // Open the configuration file and retrieve the connectionStrings section.

    configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

    ConnectionStringsSection configSection = configFile.GetSection("connectionStrings") as ConnectionStringsSection;

    if ((!(configSection.ElementInformation.IsLocked)) && (!(configSection.SectionInformation.IsLocked)))

    {

     if (encrypt && !configSection.SectionInformation.IsProtected)

     //encrypt is false to unencrypt

     {

      configSection.SectionInformation.ProtectSection("DataProtectionConfigurationProvider");

     }

     if (!encrypt && configSection.SectionInformation.IsProtected)

     //encrypt is true so encrypt

     {

      configSection.SectionInformation.UnprotectSection();

     }

     //re-save the configuration file section

     configSection.SectionInformation.ForceSave = true;

     // Save the current configuration.

     configFile.Save();

    }   

   }

   catch (System.Exception ex)

   {

    throw (ex);

   }

   finally

   {

   }

  }

}