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Questions tagged [security]

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-8 votes
1 answer
399 views

How to protect PC from any RF emanations? [closed]

I'm looking for answer of question: How to protect PC from any RF emanations? There is main problem "Cooling" against RF proof enclosure. I'm interest in building a crypto-station that proof ...
woodstack's user avatar
  • 117
1 vote
1 answer
3k views

How to harden electronics to protect it from EMP(Electromagnetic pulse)?

My question is about hardening electronics against EMP, Electromagnetic pulse (e.g. from Nuclear burst). I'm looking for civil solution. For electronics, that not build properly against EMP, like e.g....
woodstack's user avatar
  • 117
1 vote
0 answers
146 views

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 ...
Ken Masterson's user avatar
2 votes
1 answer
830 views

How do I (optimally) connect Elk-924 (high sensitivity relay board ) to DSC PGM output (sinks to ground)

This sounds like a very specific question, but I think it boils to a generic one -- not at all specific to this equipment. But it will take a bit of backstory to get there. My background, btw, is ...
rrauenza's user avatar
  • 291
6 votes
1 answer
380 views

Examples of DRM on embedded systems

I'm tasked with implementing a DRM on an embedded system. The device would have a limited number of times which it can run, after which it would be disabled, until it syncs with a computer with an ...
alexbb's user avatar
  • 309
2 votes
2 answers
190 views

Can I make power consumption analysis much harder by temporarily disconnecting the power supply?

I am thinking about building a dongle that acts as a USB or PS/2 keyboard device and is capable of doing some cryptographic things for me, e.g. provide time-based authentication codes, store passwords ...
thejh's user avatar
  • 153
3 votes
0 answers
2k views

Any good RSA/DSA chips? [closed]

I would like to find a chip that can do public key encryption/decryption, maybe RSA or DSA. Particularly the key needs to be securely stored on chip. Can anyone suggest some choices? (Update) Since I ...
Penghe Geng's user avatar

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