Questions tagged [security]
The security tag has no usage guidance.
19
questions with no upvoted or accepted answers
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Randomize PCB trace generation with Altium Designer
We are trying to create a tamper mesh as a flex PCB. This tamper mesh will consist of around 10 signal traces in order to detect a tamper.
One crucial point is that this tamper mesh should be ...
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Has any implementation succeeded to have shared key inside chipset and protect it from exploits?
Since there is a lot of demonstration like using SEM (Scanning Electron Microscope) to read bits from ROM through the scanned image of chipset, is there any implementation that has managed to succeed ...
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Connecting Protective Earth (PE) to DC ground
This question has a bit of application background so please bear with me:
I'm working on a LED lighting system. The controller (MCU, led drivers and led supply) will be powered by a single DC ...
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What are some good resource for learning how car key and wireless door lock systems work?
I understand that most car keys include a 434MHz transmitter, as well as 125KHz RFID transponder. The 434MHz transmitter is used for operating the door locks, and the 125KHz RFID transponder is the ...
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How can a designer be sure to authorize only legit ICs? How is performed? How are cloned ICs prevented to be activated?
The above diagram is from the IC Activation (locking/unlocking) slide of Fighting against theft, cloning and counterfeiting of integrated circuits by Lilian Bossuet Associate Professor, CNRS Chaire of ...
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BLE relay to control my garage door - security concerns
I would like to use Shelly 1PM Mini Gen3 to control my garage door. Since I do not have WiFi coverage in my garage I will rely on Bluetooth. However with this setup I am not sure if this Smart home ...
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Best way to use Driveay alert output (Open Collector NPN)
I'm learning as I go on this project.
I have a beam-break driveway alert that I would like to get the output from on a device like an Arduino or Raspberry Pi and need some guidance on the best ...
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how to determine what chip wire allows BIOS flashing?
how to determine what chip wire/leg allows BIOS flashing?
I want to modify my MOBO to deny BIOS flashing.
I only want it allowed when I really need to write on it.
So, I need to know:
if it is ...
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63
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How safe is it to plug a resistor on a 12 V transformer?
I was thinking about using an old fridge as a seedling cabinet. I am tempted to use the resistor of an out of order pizza oven plugged on a small 12 V transformer to heat the cabinet.
I didn't do the ...
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How to add more lights and sirens to motion detector
I have a motion detector size of a cigarette box that rings bell or simple song when activated using a small remote control. We turn it on after closing the business to go home. We've had many ...
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Breaker with alarm
I am thinking about a theft alarm for an HVAC condenser. The condenser is installed outside and subject to burglary. I think a viable approach is detecting when it is detached from power.
The HVAC ...
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LS7220 IC question for HIGH and LOW
I am learning about the basics of electronics.
I bought an LS7220 chip for a keypad lock, but using it turned out more difficult than I expected. I have attached it to a 9v battery at pins 9 and 14, ...
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Why does Intel's CCA (USB3 JTAG control scheme) not let a remote attacker own any system with a flash drive plugged in?
JTAG lets us read / write the architecture states on a CPU core. Intel's CCA let's us connect to JTAG with a USB3 port. So why could an attacker not execute code to trick a flash drive plugged into a ...
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Detection range of unintentional emissions by battery powered video recording devices?
I have read about unintentional radiators, but wonder about what their unwanted emissions detection range can be in low background noise, referring to battery powered motion-sensor activated video ...
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Problem with understanding the circuit related to stable matching security
I am trying to understand a circuit used for stable matching. The paper title is:
MPCircuits: Optimized Circuit Generation for Secure Multi-Party Computation and is available :
here
I am attaching the ...
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