Posts from old site

Blind Signal Analysis

So here I am just browsing through the electro-magnetic spectrum with gqrx and I come across a signal…a strong signal at that.  Obviously this piqued my curiosity so I decided to check it out.  I started out by recording just the raw… Read More ›

Fun with Keyfobs!

Anyways, just like I said I would I got into trying to actually demodulate the signal for that fan remote…well as it turns out, after tons of research it seems like the method I posted about in my last entry… Read More ›

Decoding fan remote RF signal

It’s been quite a while since I’ve last posted here so I figured I’d do a little experiment.  I haven’t even touched my SDRs in a few months, but I recently purchased a HackRF and WIFI Pineapple (they haven’t arrived yet) so I figured… Read More ›

Storing Sessions in a database

Most common applications and “home-brew” sites use sessions for storing temporary data as well as authentication. However, sometimes a developer may want the session to span over multiple domains and or servers, and some may just be very security conscience…. Read More ›

Secure Hashing

Many developers believe in the practice of securing passwords and other financial data using a hash function (a function of turning some kind of data into a small number that may serve as a digital “fingerprint”). However just hashing a… Read More ›

Uploading Files

PHP as you all know is a very powerful and yet fairly loose language, however one of it’s very usefully abilities is the ability to upload files. PHP can upload literally any type of file you allow it to. However… Read More ›