Noninteractive Zero-Knowledge

Abstract
We investigate the possibility of disposing of interaction between Prover and Verifier in a zeroknowledgeproof if they share beforehand a short random string.Without any assumption, we prove that non-interactive zero-knowledge proofs exist for some numbertheoretic languages for which no efficient algorithm is known.If deciding quadratic residuosity (modulo composite integers whose factorization is not known) iscomputationally hard, we show that the NP-complete language of satisfiability...

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