Expander Graphs

Definition ∞ Expander graphs are a class of sparse graphs with strong connectivity properties. In theoretical computer science and cryptography, they are used to construct robust and efficient protocols, particularly in areas like pseudorandomness generation and error correction. Their structure ensures that information spreads widely even with few connections.
Context ∞ The application of expander graphs in cryptography and distributed systems is a subject of ongoing research and development. Discussions often revolve around their use in enhancing the security and efficiency of consensus mechanisms, zero-knowledge proofs, and secure multi-party computation. Advancements in constructing and utilizing these graphs promise to bolster the foundational security and performance of advanced cryptographic protocols.