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Lecture Notes in Computer Science
We initiate the investigation of the class of relations that admit extremely efficient perfect zero knowledge proofs of knowledge: constant number of rounds, communication linear in the length of the statement and the witness, and negligible knowledge error. In its most general incarnation, our result says that for relations that have a particular three-move honest-verifier zero-knowledge (HVZK) proof of knowledge, and which admit a particular three-move HVZK proof of knowledge for andoi:10.1007/978-3-540-46588-1_24 fatcat:hipqekvb45hyfhmk65nwrwqgyu