Black-Box Concurrent Zero-Knowledge Requires (Almost) Logarithmically Many Rounds

@article{Canetti2002BlackBoxCZ,
  title={Black-Box Concurrent Zero-Knowledge Requires (Almost) Logarithmically Many Rounds},
  author={Ran Canetti and Joe Kilian and Erez Petrank and Alon Rosen},
  journal={SIAM J. Comput.},
  year={2002},
  volume={32},
  pages={1-47}
}
We show that any concurrent zero-knowledge protocol for a non-trivial language (i.e., for a language outside BPP), whose security is proven via black-box simulation, must use at least ~ (log n) rounds of interaction. This result achieves a substantial improvement over previous lower bounds, and is the rst bound to rule out the possibility of constant-round concurrent zero-knowledge when proven via black-box simulation. Furthermore, the bound is polynomially related to the number of rounds in… CONTINUE READING
Highly Cited
This paper has 57 citations. REVIEW CITATIONS

From This Paper

Topics from this paper.

Citations

Publications citing this paper.
Showing 1-10 of 39 extracted citations

58 Citations

0510'02'05'09'13'17
Citations per Year
Semantic Scholar estimates that this publication has 58 citations based on the available data.

See our FAQ for additional information.

References

Publications referenced by this paper.
Showing 1-10 of 25 references

How to Go Beyond the Black-Box Simulation Barrier

FOCS • 2001
View 6 Excerpts
Highly Influenced

Alternative Models For Zero-Knowledge Interactive Proofs

U. Feige
Ph.D. thesis, Weiz- mann Institute of Science, • 1990
View 6 Excerpts
Highly Influenced

A note on the round-complexity of Concurrent Zero-Knowledge

A. Rosen
In Crypto2000, • 1880
View 14 Excerpts
Highly Influenced

Concurrent zero-knowledge

View 7 Excerpts
Highly Influenced

On the Existence of 3-Round Zero-Knowledge Protocols

IACR Cryptology ePrint Archive • 1998
View 4 Excerpts
Highly Influenced

Similar Papers

Loading similar papers…