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Pairing Based Accumulator

Definition

A pairing based accumulator is a cryptographic primitive that allows for efficient, compact representation of a set of elements while enabling proofs of inclusion or exclusion. It utilizes bilinear pairings in elliptic curve cryptography to compress a large collection of data into a small, fixed-size value. This structure facilitates verifiable membership testing without revealing the individual elements of the set. It is valuable for constructing privacy-preserving authentication systems and scalable state proofs in decentralized networks.