[liberationtech] Using Passport NFC Chip To Do Proof-of-Work

[Yosem Companys]

From: Jan Lindemann <panda at panda.cat> via Cryptography Mailing List
<cryptography at metzdowd.com>  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:
https://medium.com/@janmoritz_48488/using-the-nfc-chip-of-the-passport-to-do-proof-of-work-b77e1a5343a1
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