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Paper 2006/337

An Efficient and Secure Two-flow Zero-Knowledge Identification Protocol

D.R. Stinson and J. Wu

Abstract

In this paper, we propose a new zero-knowledge identification protocol. While the protocol consists of only two message flows, it does not rely on any underlying signature or encryption scheme. Its zero-knowledge property is preserved under concurrent composition and reset settings. It is secure under the strongest attack model which incorporates concurrent attacks, active-intruder attacks and reset attacks. Meanwhile its performance in computation and communication is close to that of the most efficient identification protocols not based on signature or encryption systems, most of which are insecure in this strong attack model.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Published elsewhere. submitted for publication
Keywords
identification protocols
Contact author(s)
dstinson @ uwaterloo ca
History
2006-10-16: revised
2006-10-05: received
See all versions
Short URL
https://ia.cr/2006/337
License
Creative Commons Attribution
CC BY
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