Cryptology ePrint Archive: Report 2004/351

Efficient and Optimistic Fair Exchanges Based on Standard RSA with Provable Security

ZhenFeng ZHANG and YongBin ZHOU and DengGuo FENG

Abstract: In this paper, we introduce a new and natural paradigm for fair exchange protocols, called verifiable probabilistic signature scheme. A security model with precise and formal definitions is presented, and an RSA-based efficient and provably secure verifiable probabilistic signature scheme is proposed. Our scheme works well with standard RSA signature schemes, and the proposed optimistic fair exchange protocol is much concise and efficient, and suitable for practical applications.

Category / Keywords: Fair Exchange, RSA

Publication Info: submitted

Date: received 11 Dec 2004, last revised 14 Dec 2004, withdrawn 11 May 2009

Contact author: zfzhang at is iscas ac cn

Available format(s): (-- withdrawn --)

Note: Update for reference information.

Version: 20090512:032059 (All versions of this report)

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