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IEICE TRANSACTIONS on Fundamentals

A Multi-Purpose Proof System and Its Analysis

Chaosheng SHU, Tsutomu MATSUMOTO, Hideki IMAI

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Summary :

In this paper, we propose a multi-purpose proof system which enables a user remembering only one piece of secret data to perform various proof protocols. These proofs include identity proof, membership proof without disclosing identity, and combined identity and membership proof. When a user participates in a group, he will obtain a secret witness from the group administrator. Many secret witnesses can be combined into one piece of secret data. But the size of the secret data is independent of the number of the groups in which the user participates. Our system satisfies other desirable properties which were not attained by the previously proposed systems.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.6 pp.735-743
Publication Date
1992/06/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Information Security and Cryptography

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