Reverse engineering silicon logic
posted Sep 13th 2008 8:16pm by Eliot Phillipsfiled under: misc hacks, security hacks
[Karsten Nohl] has recently joined the team on Flylogic’s blog. You may remember him as part of the team that reverse engineered the crypto in MiFare RFID chips. In his first post, he starts out with the basics of identifying logic cells. By studying the specific layout of the transistors you can reproduce the actual logic functions of the chip. The end of post holds a challenge for next week (pictured above). It has 34 transistors, 3 inputs, 2 outputs, and time variant behavior. Also, check out the Silicon Zoo which catalogs individual logic cells for identification.
Not only is Flylogic a fascinating read, but their scans make excellent dekstop backgrounds.
… and in Firefox 2.0.0.1, this text box is no longer bounded by the vertical line to its right. I keep typing, and I can see the cursor blinking way off toward the recent comments.
Posted at 10:17 pm on Sep 14th, 2008 by Mindbleach