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0 pointscyberax1y ago0 comments

And the next question is: why bother? We have well-established protocols for the ID card: a police scanner creates a nonce and sends it to the card, the card signs it with its private key, and provides a certificate signed by the government.

The police scanner then verifies the signature and checks that the certificate is correctly signed by the government's public key.

No need for ZKP.

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TimJRobinson1y ago

You think peoples licenses / passports are little computers with API's built into them that return arbitrary information on demand? Over the internet?

cyberaxOP1y ago

> You think peoples licenses / passports are little computers with API's built into them that return arbitrary information on demand?

Literally yes, in some places. Passports have a chip in them, and licenses in some countries as well.

> Over the internet?

Tunneling private information over untrusted networks is literally how you're seeing this message.

TimJRobinson1y ago

Yea the chip gives the information written on the device. It doesn't answer arbitrary questions about the data.

The whole point of ZK proofs is the zero knowledge part. If you don't care about the person being able to see the information of course there's no need for them.

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0 pointscyberax1y ago0 comments

The police scanner then verifies the signature and checks that the certificate is correctly signed by the government's public key.

No need for ZKP.

0 comments

TimJRobinson1y ago

You think peoples licenses / passports are little computers with API's built into them that return arbitrary information on demand? Over the internet?

cyberaxOP1y ago

> You think peoples licenses / passports are little computers with API's built into them that return arbitrary information on demand?

Literally yes, in some places. Passports have a chip in them, and licenses in some countries as well.

> Over the internet?

Tunneling private information over untrusted networks is literally how you're seeing this message.

TimJRobinson1y ago

Yea the chip gives the information written on the device. It doesn't answer arbitrary questions about the data.

The whole point of ZK proofs is the zero knowledge part. If you don't care about the person being able to see the information of course there's no need for them.

1 more reply

j / k navigate · click thread line to collapse