Ever since I got my Proxmark3 tool I wanted to make it portable. Of course, Proxmark3 has a standalone mode which means you can power it off of a USB powerbank and operate it with its single button. This option is obviously limited and I wanted to be able to do more.

On the other hand, I have a good old Nokia n900. The two seemed like a perfect pair. N900 doesn’t support usb host mode out of the box, but latest firmware from the awesome maemo community and a couple of modules and tools does allow for n900 to act as a USB host. To enable the host mode, you’d need to install H-E=N or host mode enabler GUI (the package is called hostmode-gui) which will in turn install kernel-power (so be careful unless you already have it).

So, devttyS0 recently published his find of a backdoor in certain D-Link routers. Since there are a bunch of cheap chinese routers around here, and Tenda routers being especially cheap and popular, I wanted to take a look.

Long story short, devttyS0 beat me to it and published another awsome backdoor find. The backdoor is a bit more involved than the D-Link one. Awesome work!

In order for a smart card to be usable by a third party application, a vendor-supplied driver or a middleware needs to be available. On the Windows platform, a smart card middleware must follow the Windows Smart Card Minidriver specification which is designed to present a consistent interface to the card. This is not always the case, and card vendors sometimes implement custom and non-standard interfaces.