ASP.NET | Convertire una stringa in MD5

Function GetMD5(ByVal input As String) As String
   Dim md5Hasher As MD5 = MD5.Create()
   Dim data As Byte() = md5Hasher.ComputeHash(Encoding.Default.GetBytes(input))
   Dim sBuilder As New StringBuilder()
   Dim i As Integer
   For i = 0 To data.Length - 1
     sBuilder.Append(data(i).ToString("x2"))
   Next i
   Return sBuilder.ToString()
End Function