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IEICE TRANSACTIONS on Fundamentals

Practical Consequences of the Discrepancy between Zero-Knowledge Protocols and Their Parallel Execution

Kouichi SAKURAI, Toshiya ITOH

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Summary :

In this paper, we investigate the discrepancy between a serial version and a parallel version of zero-knowledge protocols, and clarify the information "leaked" in the parallel version, which is not zero-knowledge unlike the case of the serial version. We consider two sides: one negative and the other positive in the parallel version of zero-knowledge protocols, especially of the Fiat-Shamir scheme.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E76-A No.1 pp.14-22
Publication Date
1993/01/25
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Type of Manuscript
Special Section PAPER (Special Section on Cryptography and Information Security)
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