Definition ∞ Synchronous BFT refers to Byzantine Fault Tolerant consensus protocols that operate under the assumption of a bounded network delay. This means messages are guaranteed to be delivered within a known maximum time frame. Such protocols offer strong safety and liveness guarantees, even in the presence of malicious nodes. The synchronous assumption simplifies protocol design but can be challenging to maintain in real-world, large-scale networks.
Context ∞ The theoretical strength of synchronous BFT protocols is a constant topic in academic research and advanced blockchain architecture discussions. Debates often weigh the strict assumptions of synchronous networks against the practical realities of internet-based communication, which can experience variable delays. A critical future development involves the design of BFT protocols that can retain synchronous-like security properties while operating effectively in partially synchronous or asynchronous network environments.
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