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Byzantine Agreement Notes

In which the state is encoded with an encrypted data sharing protocol (QVSS). [5] We cannot | ϕ , ϕ , . φ ⟩ {displaystyle |phi, phi, ldots phi rangle }, because bad players can reduce the status. To prevent bad players from doing so, we code the state with Quantum Verifiable Secret Service (QVSS) sharing and send each player their share of the secret. Here too, verification requires a Byzantine agreement, but it is enough to replace the agreement with the rank caste protocol. [6] [7] Loyal lieutenants will do whatever the algorithm says, but traitors can do whatever they want. The algorithm must guarantee the first condition, no matter what the traitors do. Loyal lieutenants should not only reach an agreement, but agree on a reasonable plan. Byzantine error-tolerant protocols are algorithms that are robust to any type of error in distributed algorithms. The purpose of Byzantine error tolerance is to be able to defend against failures of system components, with or without symptoms, preventing other components of the system from reaching an agreement among themselves when such an agreement is necessary for the proper functioning of the system.

Studies by Pease, Shostak, and Lamport were among the first to address the problem of achieving coordinated behavior between processors in a distributed system in the event of a failure [21]. Since the publication of the work, this theme has become a vast field of research. Below is a presentation of the main findings on the specific issues addressed in their paper. . . .

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