BFT protocols

A Byzantine fault refers to a situation in distributed computing systems where components may fail and there is uncertainty about whether a component has actually failed. This term comes from the "Byzantine generals problem," which describes a scenario where system actors must agree on a strategy to prevent system failure, but some actors are unreliable. In a Byzantine fault, a component can appear both failed and functioning inconsistently, making it challenging for other components to determine if it has failed and exclude it from the network. Byzantine fault tolerance (BFT) refers to the ability of a fault-tolerant computer system to handle such conditions.