Non-Interactivity

Definition ∞ Non-Interactivity, in a cryptographic context, refers to a proof system where the prover generates a proof without any communication rounds with the verifier. The verifier receives a single, static proof that can be checked independently. This property is highly desirable for blockchain applications as it reduces communication overhead and enables efficient, asynchronous verification on a distributed ledger. It contrasts with interactive proof systems that require multiple exchanges between parties.
Context ∞ Non-Interactivity is a key feature often highlighted in news concerning zero-knowledge proofs (ZKPs) and their application to blockchain scalability and privacy. Protocols like zk-SNARKs and zk-STARKs achieve non-interactivity, allowing for efficient off-chain computation verification. Discussions focus on the benefits of non-interactive proofs for reducing transaction costs and improving network throughput. The development of more efficient non-interactive proof systems is a significant area of research for advancing blockchain technology.