Visual Studio .config 加解密

http://msdn.microsoft.com/zh-tw/library/ms254494.aspx
http://www.dotblogs.com.tw/yc421206/archive/2009/04/15/8010.aspx

WinForm:

    // Takes the executable file name without the
    // .config extension.
    try
    {
        // Open the configuration file and retrieve
        // the connectionStrings section.
        Configuration config = ConfigurationManager.
            OpenExeConfiguration(ConfigurationUserLevel.None);

        ConnectionStringsSection section =
            config.GetSection("connectionStrings")
            as ConnectionStringsSection;

        if (section.SectionInformation.IsProtected)
        {
            // Remove encryption.
            section.SectionInformation.UnprotectSection();
        }
        else
        {
            // Encrypt the section.
            section.SectionInformation.ProtectSection(
                "DataProtectionConfigurationProvider");
        }
        // Save the current configuration.
        config.Save();
        MessageBox.Show(String.Format("Protected={0}",
section.SectionInformation.IsProtected));
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }



WebConfig:

    // Open the Web.config file.
    Configuration config = WebConfigurationManager.
        OpenWebConfiguration("~");

    // Get the connectionStrings section.
    ConnectionStringsSection section =
        config.GetSection("connectionStrings")
        as ConnectionStringsSection;

    // Toggle encryption.
    if (section.SectionInformation.IsProtected)
    {
        section.SectionInformation.UnprotectSection();
    }
    else
    {
        section.SectionInformation.ProtectSection(
            "DataProtectionConfigurationProvider");
    }

    // Save changes to the Web.config file.
    config.Save();    // Open the Web.config file.
    Configuration config = WebConfigurationManager.
        OpenWebConfiguration("~");

    // Get the connectionStrings section.
    ConnectionStringsSection section =
        config.GetSection("connectionStrings")
        as ConnectionStringsSection;

    // Toggle encryption.
    if (section.SectionInformation.IsProtected)
    {
        section.SectionInformation.UnprotectSection();
    }
    else
    {
        section.SectionInformation.ProtectSection(
            "DataProtectionConfigurationProvider");
    }

    // Save changes to the Web.config file.
    config.Save();

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