Regular Section
Two-Round Witness Hiding Protocol
2018 Volume E101.A Issue 6 Pages 953-960
Details
2018 Volume E101.A Issue 6 Pages 953-960
The concept of witness hiding was proposed by Feige and Shamir as a natural relaxation of zero-knowledge. Prior constructions of witness hiding protocol for general hard distribution on NP language consist of at least three rounds. In this paper we construct a two-round witness hiding protocol for all hard distributions on NP language. Our construction is based on two primitives: point obfuscation and adaptive witness encryption scheme.
