Byzantine Fault Tolerance (pBFT)

간단한 설명:

Practical Byzantine Fault Tolerance (PBFT) is a consensus algorithm designed to work efficiently in an asynchronous system (no assumptions are made about timing) and optimized to have low latency.

주요 설명:

Byzantine Fault Tolerance (BFT), particularly in its practical form known as Practical Byzantine Fault Tolerance (pBFT), is a consensus mechanism used in distributed systems to maintain reliability and agreement among nodes, even if some behave maliciously or fail. This concept stems from the Byzantine Generals’ Problem, which highlights the difficulties of achieving consensus when dealing with unreliable components.

In a pBFT system, a network of nodes works together to validate transactions and agree on the system’s state. The protocol can handle a limited number of faulty nodes, functioning correctly as long as less than one-third of the nodes are compromised. This robustness is vital for ensuring the integrity and reliability of the network.

The consensus process typically involves multiple rounds of communication among nodes, where they share transaction information and vote on its validity. Once sufficient votes are gathered, consensus is reached, allowing the transaction to proceed. pBFT is often noted for its efficiency and low latency, making it well-suited for permissioned blockchain networks and other applications where trust is critical.