Traverse Security Boundaries using Base64 Encoding
I often have the issue that I want to send binary code to a friend sitting behind filtering mechanisms that block a lot of content. In most cases I found a workaround base64 encoding the content and sending it either directly in the body of the mail or as simple text attachment. I even managed to get code onto a system that allowed read access to an USB stick but would not allow to copy to or from the stick. I just did cut'n'paste of the base64 content, decoded it and off it went.
Luckily, certutil.exe is part of Windows 7 and there is no need for more. I create a dead simple batch and put it on my desktop. I then simply drag'n'drop the file to be encoded onto the icon and have it saved right beside it. For convenience I also open it inside Notepad.
@ECHO OFF certutil -f -encode "%1" "%~f1.enc" notepad "%~f1.enc"
Stay tuned for the decodeing part...
...and here we go:
@ECHO OFF certutil -f -decode "%1" "%~dpn1"
About
Originally this site was intended as a project site. The goal was to define standards for the perimeterless network using
open-source software. To be honest I simply do not have the time for such a thing. So what is left is a blog with sporadic
posts that are either helpful for myself or I think are helpful for others, too since I had a hard time finding information
on the Internet. Think of it as a knowledge base.
Ehm yes, somtimes I write down my two cents on any topic that may go through my mind at that point in time ;-)