6.1.1 Conditions for Proof of Authority Consensus
Although the conditions may vary from system to system, the PoA consensus algorithm is usually reliant upon:
Valid and trustworthy identities: validators need to confirm their real identities.
Difficulty to become a validator: a candidate must be willing to invest Blockand put his reputation at stake. A tough process reduces the risks of selecting questionable validators and incentivizes a long-term commitment.
a standard for validator approval: the method for selecting validators must be equal to all candidates.
The essence of the reputation mechanism is the certainty behind a validator’s identity. This can’t be an easy process nor one that would be readily given up. It must be capable of weeding out bad players. Finally, ensuring that all validators go through the same procedure guarantees the system’s integrity and reliability.