International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Susumu Kiyoshima

Affiliation: NTT

Publications

Year
Venue
Title
2018
EUROCRYPT
2018
TCC
No-signaling Linear PCPs
Susumu Kiyoshima
In this paper, we give a no-signaling linear probabilistically checkable proof (PCP) system for polynomial-time deterministic computation, i.e., a PCP system for $${\mathcal {P}}$$P such that (1) the PCP oracle is a linear function and (2) the soundness holds against any (computational) no-signaling cheating prover, who is allowed to answer each query according to a distribution that depends on the entire query set in a certain way. To the best of our knowledge, our construction is the first PCP system that satisfies these two properties simultaneously.As an application of our PCP system, we obtain a 2-message scheme for delegating computation by using a known transformation. Compared with existing 2-message delegation schemes based on standard cryptographic assumptions, our scheme requires preprocessing but has a simpler structure and makes use of different (possibly cheaper) standard cryptographic primitives, namely additive/multiplicative homomorphic encryption schemes.
2017
EUROCRYPT
2017
TCC
2016
EUROCRYPT
2015
EPRINT
2015
EPRINT
2015
TCC
2015
CRYPTO
2015
ASIACRYPT
2014
CRYPTO
2014
TCC
2014
EPRINT