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Showing posts from July, 2018

Update on my Status

Update on me I have been chilling, still haven't gone back to IT yet except I did go through an interview recently with a company I'm actually interested in working for. I flopped, I couldn't even list 5 bash commands I use when asked during that interview, RIP in pepperonis. I decided a while ago I needed to PoC out my knowledge on github and have been writing quite a bit trying to consolidate resources  I use when going through labs or learning, as well as documents what I read. Maybe it could have helped but it was such a hard stupid moment on my part that I want to crawl into a hole, lay, and rot until work on Monday.  Anyway, my PoC work can be found here https://github.com/64nYm3d3/CheatSheet/ and it's registered under an email not related to this site so I'll update it at some point to reflect the relationship. I wish I had started it much sooner, with so much to add it is a major task and reorganizing and reformatting my notes is a bit challenging. It&

A beginner guide to Smart Cards

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Smart Cards     Since this has been my current subject of interest I'll post a bit here. I'll be focusing on a subset of RFID called smart chips, smart cards, SIM cards, etc. A lot of what I say here is taken from what I've been reading, and my next step is to start interacting with them. This is a really quick introduction. Does this pin out look familiar? Beyond just your phones SIM these are integrated into your credit cards now as well in the US. How weird is that? While the pin out looks the same, they actually very quite heavily with internal technology, looks, etc, but they still use often use T=0 and T=1 protocols to communicate, which if that sounds familiar, are protocols used by GSM. These only store a small amount of information. It's really important to remember that is their primary function as these chips  CAN contain an OS, a CPU, RAM, and applications. The pin-outs are as follows. It is important to know that of the 8 contacts only