Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Jisuanji yingyong yanjiu

New Multi-party Fair Exchange Protocol with Off-line Semi-trusted Third Party

DU Hong-zhen, Jianzhong Zhang

Published Jan 1, 2006• 0 citations
OpenAlex

Abstract

At present,the study of multi-party fair exchange protocol is very weak.Aiming at solving the problem,we present a secure and efficient multi-party fair exchange protocol with off-line semi-trusted third party on the basis of Zheng scheme.

Related papers

Multi-party fair exchange protocol with an Off-line Semi-Trust Third Party

Yang Zhao, Zhiguang Qin, Tian Lan +2 more

A multi-party fair exchange protocol is a cryptographic protocol allowing several parties to exchange electronic items in such a way that everyone gives an item away if and only if it receives an item in return. In this paper, we present a new multi-party fair exchange protocol with an Off-line Semi-Trust Third Party (OSTTP). The new protocol can ensure strong fairness and the OSTTP can't get the exchanged secrets without conspiring with any participants.

International Conference on Communications, Circuits and Systems•Jul 1, 2007•0 citations

ID-Based Fair Multi-party Exchange Protocol

Minqing Zhang, Haiyan Xiao, Xiaoyuan Yang

Fair multi-party exchange protocol is one of the foundation electronic commerce, but at present, the study of multi-party fair exchange protocol is very weak. Aiming at solving this problem, we present a secure and efficient ID-based fair multi-party exchange protocol with off-line semi-trusted third party. Application of multi-receiver identity-based encryption and PVSS scheme ensure security and efficiency of this new protocol. And it applied to multi-party certified e-mail exchange in network environment.

International Conference on Measuring Technology and Mechatronics Automation (ICMTMA)•Mar 1, 2010•1 citation

A fair multi-party exchange protocol with theoff-line trusted third party

Jianzhong Zhang

The difference between the fair exchange protocols and the non-repudiation protocols is proposed. Based on the publicly verifiable secret sharing scheme and group encryption scheme, a new multi-party fair exchagne protocol with an off-line semi-Trusted Third Party(off-STTP) is presented. The off-STTP who need not be completely trusted intervenes into the exchange in case of trouble. That the off-STTP can only decipher a sub-secret key makes sure the confidentiality of exchange data and the true fairness of the barter. The participants can barter with others at their will and the exchange topology is unknown to others including the off-STTP.

Journal of Xidian University•Jan 1, 2004•0 citations

A fair exchange protocol based on short signature with the off-line semi-trusted third party

Xiangjun Xin, Fagen Li

Based on a short signature scheme and discrete logarithm problem,a new fair exchange protocol with the off-line semi-Trusted Third Party(TTP) is proposed.The off-line semi-TTP intervenes into the protocol in case of trouble,which makes the fair exchange optimistic.The off-line TTP need not be completely trusted,since it can get neither signature exchanged when disputation is solved.Because this protocol is based on short signature,which needs low storage and little communication,it can be used in low-bandwidth communication and low-storage environments.

Journal of Xidian University•Jan 1, 2007•0 citations

A multi-party non-repudiation protocol with semi-trusted third party

Wang Caifen, Jianhua Ge, Xinjun Du +3 more

Multi-party exchange protocols are so widely used in electronic commerce that more and more attention is being paid to designing multi-party protocols or algorithms. Multi-party protocols with non-repudiation play an important role in data fair exchange in the Internet. In this paper, we present a new multi-party protocol with off-line semi-trusted third party (STTP). The protocol is very efficient, at most 5|R|message are broadcast.

IEEE Region 10 Conference (TENCON)•Mar 1, 2004•3 citations

A multiparty fair-exchange protocol

Zhengquan Li

Based on the secret sharing technique,this paper proposes a multi-party fair exchange protocol.The protocol uses an online trusted third party(TTP) in order to help the participants to realize fair exchange.The advantage of a protocol implemented with an online TTP is that the TTP is semi-trusted.Fairness of the proposed protocol is proved in this paper.

Journal of Yangzhou University•Jan 1, 2008•0 citations
Fair multi-party exchange protocol is one of the foundation electronic commerce, but at present, the study of multi-party fair exchange protocol is very weak. Aiming at solving this problem, we present a secure and efficient ID-based fair multi-party exchange protocol with off-line semi-trusted third party. Application of multi-receiver identity-based encryption and PVSS scheme ensure security and efficiency of this new protocol. And it applied to multi-party certified e-mail exchange in network environment.
The difference between the fair exchange protocols and the non-repudiation protocols is proposed. Based on the publicly verifiable secret sharing scheme and group encryption scheme, a new multi-party fair exchagne protocol with an off-line semi-Trusted Third Party(off-STTP) is presented. The off-STTP who need not be completely trusted intervenes into the exchange in case of trouble. That the off-STTP can only decipher a sub-secret key makes sure the confidentiality of exchange data and the true fairness of the barter. The participants can barter with others at their will and the exchange topology is unknown to others including the off-STTP.
Based on a short signature scheme and discrete logarithm problem,a new fair exchange protocol with the off-line semi-Trusted Third Party(TTP) is proposed.The off-line semi-TTP intervenes into the protocol in case of trouble,which makes the fair exchange optimistic.The off-line TTP need not be completely trusted,since it can get neither signature exchanged when disputation is solved.Because this protocol is based on short signature,which needs low storage and little communication,it can be used in low-bandwidth communication and low-storage environments.