You can get an fpga pretty cheap these days and implement or find a debugger design or jtag or protocol enumerator. The arrow one is $30 and has an fdti that can bitbang pretty fast that you can pass through to the logic level pins too. I'm pretty sure you can emulate an atmega on one too. 8k logic gates, 50mhz lots of pins. Also fernflower is a pretty cool java decompiler if you can get a copy. I was given one and told that I can only distribute it privately in collab. (One of the things that helps a small amount making bukkit.org easier when it started)
The real trick with JTAG is figuring out the control codes and commands. If you have that you can just write your own debugger with something like a FT232H. Or bit bang with Arduino/Pi. Boundary scanning the bus is possible to get some of it too. Since protocol supports bypass mode, and is effectively a shift register. However it may change once placed into bypass. Using this proper you can attempt to discover the length and with even more guessing the actual part on the bus. Note JTAG reserves the right to only support boundary scan functions for pins not internal memory or processor inspection. JTAG was creating for soldering verification. Some devices are known to use JTAG a lot, FPGAs and BGA devices.
Is there anyone who can tell me what they have done? Nothing? I thought DEFCON is all about what you've achieved. This is more like a product ad, or product spec. "We have this geat board, it has XXX chip XXX chip mounted. It works on XXX bus. High speed, cheap! Buy it!" Total waste of time.
I would say that exploiting or making some expensive hardware encryption pointless should be enough achievement. Everything else remains free for your creativity.
Answering an really old comment, but i see the same type of comments today. So why not make one i can reuse (Copy + Paste comment) A Defcon talk is not a cheat sheet. If you know some electronics, then you know that they more or less gives you everything served on a silver plate. The only thing you need to bring is the silver spoon.
thank you for uploading these.
The guy who is sitting feels like he’s Gordon form Black Clover 😂
You can get an fpga pretty cheap these days and implement or find a debugger design or jtag or protocol enumerator. The arrow one is $30 and has an fdti that can bitbang pretty fast that you can pass through to the logic level pins too. I'm pretty sure you can emulate an atmega on one too. 8k logic gates, 50mhz lots of pins.
Also fernflower is a pretty cool java decompiler if you can get a copy. I was given one and told that I can only distribute it privately in collab. (One of the things that helps a small amount making bukkit.org easier when it started)
The real trick with JTAG is figuring out the control codes and commands. If you have that you can just write your own debugger with something like a FT232H. Or bit bang with Arduino/Pi. Boundary scanning the bus is possible to get some of it too. Since protocol supports bypass mode, and is effectively a shift register. However it may change once placed into bypass. Using this proper you can attempt to discover the length and with even more guessing the actual part on the bus. Note JTAG reserves the right to only support boundary scan functions for pins not internal memory or processor inspection. JTAG was creating for soldering verification. Some devices are known to use JTAG a lot, FPGAs and BGA devices.
anyone has the 300 slides they keep refering to ?
i wonder if Hotel X building services department got their room thermostats back
seems like the whole reason for looking at it was because the room was too hot. they probably fixed it and put it back in.
What is this $30k appliance they're talking about?
you're pronouncing Xilinx wrong, it's "Zie-links", not "Sillings".
i pronounce it "overpriced" 😁
Fucking GOLD!
23:00 in, I'm bored... "Look, electronics!" Is not a defcon talk...
@Whoop!!
Is there anyone who can tell me what they have done? Nothing?
I thought DEFCON is all about what you've achieved.
This is more like a product ad, or product spec.
"We have this geat board, it has XXX chip XXX chip mounted. It works on XXX bus. High speed, cheap! Buy it!"
Total waste of time.
I would say that exploiting or making some expensive hardware encryption pointless should be enough achievement. Everything else remains free for your creativity.
Answering an really old comment, but i see the same type of comments today. So why not make one i can reuse (Copy + Paste comment)
A Defcon talk is not a cheat sheet. If you know some electronics, then you know that they more or less gives you everything served on a silver plate. The only thing you need to bring is the silver spoon.