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Blockchains, to put it mildly, do not even resemble a viable solution in this space.

• schoen 11y ago
  It would be helpful if you could explain why not, and whether your criticism applies just to proof-of-work mechanisms or to other approaches to consensus as well.
  • Kalium 11y ago
    Consensus is not a suitable mechanism for authority. Consensus has many uses, but for use-cases where authority is a hard requirement - such as this one - consensus is simply not suitable. Authority needs to remain authority even if a bunch of other people would like it to be otherwise. If the NSA can throw enough computing power at it and seize control of consensus to determine which keys are authoritative, then your whole PKI is useless. I repeat: consensus is not a suitable mechanism for authority. Consensus has many other uses. Would you use a watermelon to lock a door?