Cryptology ePrint Archive: Report 2014/293

An Efficient Abuse-Free Fair Contract-Signing Protocol Based on RSA Signature and Σ-protocol

Xi-Jun Lin and Lin Sun

Abstract: A fair contract-signing protocol is an important mechanism which allows two participants to sign a digital contract via the public computer networks in a fair way. Based on the RSA signature scheme and Σ-protocol, we propose a new contract-signing protocol in this paper. The proposed protocol is not only fair and optimistic, but also efficient and abuse-free. Moreover, security and efficiency analysis are provided.

Category / Keywords: cryptographic protocols / Contract signing, fair exchange, digital signatures, RSA, e-commerce

Date: received 26 Apr 2014, withdrawn 22 Jun 2014

Contact author: linxj77 at 163 com

Available format(s): (-- withdrawn --)

Version: 20140622:073225 (All versions of this report)

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