Byzantine Generals problem
The Byzantine Generals Problem is a computer science problem that presents a challenge in designing distributed systems. It is based on a thought experiment in which multiple generals of the Byzantine army, each commanding their own division, must coordinate to attack or defend a city successfully. The challenge lies in the fact that the generals need to be sure that the others will carry out their orders, as they may be traitors, and so must find a way to reach a consensus without being able to communicate directly with one another.
Byzantine Generals have to decide whether to attack or retreat. The decision must be unanimous, but communication between the generals is unreliable. Some generals may be traitors who will try to prevent the other generals from making the correct decision. The problem can be solved in several ways, one is the Byzantine Fault Tolerance algorithm.
Do you see the analogy to the blockchain already? In the blockchain networks, we face the same problem - we have to undoubtedly confirm the same transaction without being able to communicate between all nodes, which “takes decisions”
Byzantine Fault Tolerance
Byzantine Fault Tolerance (BFT) is a fault-tolerance system that ensures the reliability of distributed systems in the presence of unreliable services. It is a form of distributed consensus that requires multiple system replicas to agree on a single result. BFT is an important tool for distributed computing systems, as it allows them to continue operating, even when individual components within the system experience errors, fail or return malformed results.
