Jun 6, 2018 · SUMMARY. The concept of witness hiding was proposed by Feige and. Shamir as a natural relaxation of zero-knowledge. Prior constructions of.
2. If a statement has at least two independent witnesses, then any witness indistinguishable protocol for this statement is also witness hiding. Using these ...
We use such a PoI protocol to construct a 2-message witness hiding protocol for NP with adap- ... simulation in two rounds and its applications. In ...
A two party protocol in which party A uses one of several secret witnesses to an NP assertion is witness indistinguishable if party B cannot tell which ...
Jun 1, 2018 · In this paper we construct a two-round witness hiding protocol for all hard distributions on NP language. Our construction is based on two ...
Assuming two-message oblivious transfer (OT) secure against malicious PPT receivers, the protocol in Figure 1 is witness-hiding against delayed-input verifiers.
This new protocol will have complexity equivalent to running twice in parallel. After surveying related work, we give in the following two sections more details ...
Dec 31, 2023 · The Pseudorandom Function with Witness (PFW) is a critical component in the construction of secure cryptographic protocols. It functions as a ...
V. Witness hiding protocols. Observations. - Fiat-Shamir protocol is perfect zero-knowledge, but due to its sequential round structure not efficient.
Missing: Two- | Show results with:Two-
This work proves two central results: Unlike zero knowledge protocols, witness indistinguishablity is preserved under arbi t rary composition of protocols, ...