Encrypting Connection Strings in the web.config

There's a nice tip in this video on encrypting connection strings in the web.config. I couldn't find the source code, so I typed it in myself. If you need it, here it is. BTW, who's the presenter on these? He has a pleasant, relaxed, and fluid style.

    ' For the video, see
    ' http://download.microsoft.com/download/8/3/6/836dd5f8-fa92-499f-8219-0d326f13bf18/hilo_tips_final.wmv
    Protected Sub EncryptConfig(ByVal bEncrypt As Boolean)
        Dim path = "~/"
        ' Use the WebConfigurationManager to open
        ' the local web.config file
        Dim config As Configuration = _
          System.Web.Configuration.WebConfigurationManager. _
            OpenWebConfiguration(path)
        ' Get the connectionStrings section
        ' from the web.config file
        Dim appSettings As ConfigurationSection = _
        config.GetSection("connectionStrings")
       
        If bEncrypt Then
            ' Encrypt the string using ProtectSection
            appSettings.SectionInformation.ProtectSection _
            ("DataProtectionConfigurationProvider")
        Else
            'Decrypt the string using UnprotectSection
            appSettings.SectionInformation.UnprotectSection()
        End If
        'Save the changes
        config.Save()
    End Sub