STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Resettable zero-knowledge (extended abstract)
STOC '00 Proceedings of the thirty-second annual ACM symposium on Theory of computing
Concurrent and resettable zero-knowledge in poly-loalgorithm rounds
STOC '01 Proceedings of the thirty-third annual ACM symposium on Theory of computing
Black-box concurrent zero-knowledge requires \tilde {Ω} (logn) rounds
STOC '01 Proceedings of the thirty-third annual ACM symposium on Theory of computing
Concurrent Zero Knowledge with Logarithmic Round-Complexity
FOCS '02 Proceedings of the 43rd Symposium on Foundations of Computer Science
Soundness in the Public-Key Model
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
FOCS '00 Proceedings of the 41st Annual Symposium on Foundations of Computer Science
Resettably-Sound Zero-Knowledge and its Applications
FOCS '01 Proceedings of the 42nd IEEE symposium on Foundations of Computer Science
Instance-Dependent Verifiable Random Functions and Their Application to Simultaneous Resettability
EUROCRYPT '07 Proceedings of the 26th annual international conference on Advances in Cryptology
Improved Security Notions and Protocols for Non-transferable Identification
ESORICS '08 Proceedings of the 13th European Symposium on Research in Computer Security: Computer Security
Resolving the Simultaneous Resettability Conjecture and a New Non-Black-Box Simulation Strategy
FOCS '09 Proceedings of the 2009 50th Annual IEEE Symposium on Foundations of Computer Science
On the concurrent composition of zero-knowledge proofs
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Simulatable commitments and efficient concurrent zero-knowledge
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Efficiency preserving transformations for concurrent non-malleable zero knowledge
TCC'10 Proceedings of the 7th international conference on Theory of Cryptography
Resettable statistical zero knowledge
TCC'12 Proceedings of the 9th international conference on Theory of Cryptography
Simultaneously resettable arguments of knowledge
TCC'12 Proceedings of the 9th international conference on Theory of Cryptography
On round-optimal zero knowledge in the bare public-key model
EUROCRYPT'12 Proceedings of the 31st Annual international conference on Theory and Applications of Cryptographic Techniques
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An important open question in Cryptography concerns the possibility of achieving secure protocols even in the presence of physical attacks. Here we focus on the case of proof systems where an adversary forces the honest player to re-use its randomness in different executions. In 2009, Deng, Goyal and Sahai [1] constructed a simultaneously resettable non-black-box zero-knowledge argument system that is secure against resetting provers and verifiers. In this work we study the case of the black-box use of the code of the adversary and show a nearly simultaneously resettable black-box zero-knowledge proof systems under standard assumptions. Compared to [1], our protocol is a proof (rather then just argument) system, but requires that the resetting prover can reset the verifier up to a bounded number of times (which is unavoidable for black-box simulation), while the verifier can reset the prover an arbitrary polynomial number of times. The main contribution of our construction is that the round complexity is independent of the above bound. To achieve our result, we construct a constant-round nearly simultaneously resettable coin-flipping protocol that we believe is of independent interest.