[Cryptography] Using the NFC chip of the Passport to do Proof-of-Work

Jan Lindemann panda at panda.cat
Sun May 3 14:46:18 EDT 2020

I came up with a funny idea on how to create an egalitarian POW mechanism
that would let everyone have the same or a very similar "hashing rate".
To keep it short, it uses the active authentication feature of the NFC chip
contained within passports.
This feature consists in having a private key contained within the chip
signing a challenge to prove that it hasn't been cloned.
So my proposal is to use this signing functionality instead of using the
typical SHA256 or Scrypt hashing algorithms.
Passports have likely a similar singing rate, and people are likely to only
have one passport.

More details can be found here if you are interested:
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