scholarly journals A new efficient optimistic fair exchange protocol without random oracles

2011 ◽  
Vol 11 (1) ◽  
pp. 53-63 ◽  
Author(s):  
Qiong Huang ◽  
Guomin Yang ◽  
Duncan S. Wong ◽  
Willy Susilo
Keyword(s):  
Fair Exchange ◽  
Random Oracles ◽  
Optimistic Fair Exchange

An optimistic fair exchange protocol based on committed signature

2009 ◽  
Author(s):  
Guanghui Chen ◽  
Sihan Qing ◽  
Zhifeng Qi ◽  
Yixian Yang
Keyword(s):  
Fair Exchange ◽  
Optimistic Fair Exchange

A Formal Analysis Method for Optimistic Fair Exchange Protocol

2013 ◽  
Vol 8 (3) ◽  
pp. 35-46 ◽  
Author(s):  
Yuexiang Gao ◽  
Daiyuan Peng ◽  
Pengzhi Tang
Keyword(s):  
Formal Analysis ◽  
Analysis Method ◽  
Fair Exchange ◽  
Optimistic Fair Exchange

scholarly journals A Generic Framework for Accountable Optimistic Fair Exchange Protocol

Symmetry ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 285
Author(s):  
Jia-Ch’ng Loh ◽  
Swee-Huay Heng ◽  
Syh-Yuan Tan
Keyword(s):  
Standard Model ◽  
Random Oracle Model ◽  
Building Blocks ◽  
Random Oracle ◽  
Fair Exchange ◽  
Generic Framework ◽  
The Standard Model ◽  
Security Properties ◽  
Optimistic Fair Exchange ◽  
The One

Optimistic Fair Exchange protocol was designed for two parties to exchange in a fair way where an arbitrator always remains offline and will be referred only if any dispute happens. There are various optimistic fair exchange protocols with different security properties in the literature. Most of the optimistic fair exchange protocols satisfy resolution ambiguity where a signature signed by the signer is computational indistinguishable from the one resolved by the arbitrator. Huang et al. proposed the first generic framework for accountable optimistic fair exchange protocol in the random oracle model where it possesses resolution ambiguity and is able to reveal the actual signer when needed. Ganjavi et al. later proposed the first generic framework in the standard model. In this paper, we propose a new generic framework for accountable optimistic fair exchange protocol in the standard model using ordinary signature, convertible undeniable signature, and ring signature scheme as the underlying building blocks. We also provide an instantiation using our proposed generic framework to obtain an efficient pairing-based accountable optimistic fair exchange protocol with short signature.

Optimistic Fair Exchange with Strong Resolution-Ambiguity

2011 ◽  
Vol 29 (7) ◽  
pp. 1491-1502 ◽  
Author(s):  
Xinyi Huang ◽  
Yi Mu ◽  
Willy Susilo ◽  
Wei Wu ◽  
Yang Xiang
Keyword(s):  
Fair Exchange ◽  
Optimistic Fair Exchange
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