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Open AccessArticle

Provable Fair Document Exchange Protocol with Transaction Privacy for E-Commerce

Department of Computer Science and Information Engineering, Tamkang University, 151, Ying-Chuan Road, Tamsui Dist., New Taipei City 25137, Taiwan
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Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Neil Y. Yen
Symmetry 2015, 7(2), 464-487; https://doi.org/10.3390/sym7020464
Received: 30 December 2014 / Revised: 12 April 2015 / Accepted: 21 April 2015 / Published: 28 April 2015
(This article belongs to the Special Issue Advanced Symmetry Modelling and Services in Future IT Environments)
Transaction privacy has attracted a lot of attention in the e-commerce. This study proposes an efficient and provable fair document exchange protocol with transaction privacy. Using the proposed protocol, any untrusted parties can fairly exchange documents without the assistance of online, trusted third parties. Moreover, a notary only notarizes each document once. The authorized document owner can exchange a notarized document with different parties repeatedly without disclosing the origin of the document or the identities of transaction participants. Security and performance analyses indicate that the proposed protocol not only provides strong fairness, non-repudiation of origin, non-repudiation of receipt, and message confidentiality, but also enhances forward secrecy, transaction privacy, and authorized exchange. The proposed protocol is more efficient than other works. View Full-Text
Keywords: electronic commerce; fair document exchange; network security; transaction privacy electronic commerce; fair document exchange; network security; transaction privacy
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MDPI and ACS Style

Hwang, R.-J.; Lai, C.-H. Provable Fair Document Exchange Protocol with Transaction Privacy for E-Commerce. Symmetry 2015, 7, 464-487. https://doi.org/10.3390/sym7020464

AMA Style

Hwang R-J, Lai C-H. Provable Fair Document Exchange Protocol with Transaction Privacy for E-Commerce. Symmetry. 2015; 7(2):464-487. https://doi.org/10.3390/sym7020464

Chicago/Turabian Style

Hwang, Ren-Junn; Lai, Chih-Hua. 2015. "Provable Fair Document Exchange Protocol with Transaction Privacy for E-Commerce" Symmetry 7, no. 2: 464-487. https://doi.org/10.3390/sym7020464

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