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Well, I tried to avoid saying blockchain, which is already being implemented https://hackernoon.com/decentralized-public-key-infrastructure-dpki-what-is-it-and-

• bawolff 5y ago
  Its kind of missing the point (unless im missing something). The hard part is linking keys to well known identifiers (ensuring that a malicious person can't trick you into thinking you have someone else's key when you really have the evil person's). Having an append-only store is not the hard part of the problem and there are much better solutions than blockchains for that.
  • Spooky23 5y ago
    Identifiers are just attributes. If you want to attach a library card, US Passport, refugee id to a blockchain instance of your identity, you can inherit that endorsement. In NIST speak, you can get a level 2 assurance level (good for most commerce) by collecting two strong identifiers or verifying one.
    • bawolff 5y ago
      That does not solve the problem. If it did, we would have solved the problem decades ago Case in point - pgp supports exactly that - you can have keys, which can have attributes which are endorsed by your key. We've had this since the 90's. It didn't solve the problem back then, reinventing the same thing but worse using blockchains won't solve the problem now.