All Questions
Tagged with security integrated-circuit
5
questions
1
vote
2
answers
133
views
Pin-based security chips for Arduino?
These cryptocurrency wallets like Coldcard can be unlocked by a simple PIN, and are fairly safe. I believe that they use a security chip that stores information and only delivers with the right PIN. ...
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0
votes
1
answer
49
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LS7220 passcode IC
I bought the LS7220 IC which is designed to check passcodes.
For some reason, the pin 8 Lock Status Output does not illuminate the LED when I connect the power, and when I bridge the VCC in sequence ...
- 253
0
votes
0
answers
41
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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, ...
- 253
0
votes
1
answer
97
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Can an Integrated Circuit ROM ever be secured [closed]
This presentation which includes embedding public asymmetric crypto assets in a micro-controller on chip ROM suggests that there are, but I am sceptical.
Is it the case that there is nothing that can ...
3
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0
answers
2k
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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 ...
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