Notes on the Security Definitions for NIDV Proof Systems Clause Samples

Notes on the Security Definitions for NIDV Proof Systems. Non-transferability: The existence of FakePGen that can be run by V to create an NIDV proof for any element e (not necessarily in L) ensures that no-one besides V will be convinced by an NIDV proof for e. We note that we do not require the elements e and ej to be indistinguishable for non- transferability; rather only the proofs π and πj are required to be indistinguishable. If an outside party can already distinguish elements in L(XP ) from elements not in L(XP ), then they have no need of NIDV proofs for L(XP ). However an NIDV proof for an element e should not give any extra information regarding e to parties other than the designated verifier.
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Related to Notes on the Security Definitions for NIDV Proof Systems

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