An optimistic fair exchange protocol based on signature policies

Hernández-Ardieta, Jorge López; González-Tablas, Ana I.; Álvarez, Benjamín Ramos

doi:10.1016/j.cose.2008.07.005

Cited by 20 publications

(12 citation statements)

References 12 publications

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“…Inspired by [14,15], we give a solution to overcome the above weaknesses. In detail, we introduce a deadline and an abortion protocol to the GLX scheme for obtaining fairness and timeliness.…”

Section: Analysis Of the Glx Schemementioning

confidence: 99%

“…In [14,15], the authors proposed some discussions of the most common timeliness-related mistakes and some informal guidelines for the OFEP design. Inspired by [14,15], we give a solution to overcome the above weaknesses.…”

Section: Analysis Of the Glx Schemementioning

confidence: 99%

“…In this section, we propose a new AFOFEP based on [10,14,15] in order to obtain fairness and timeliness. Before describing the new protocol, we introduce some notations.…”

Section: The New Optimistic Fair Exchange Protocolmentioning

confidence: 99%

See 2 more Smart Citations

New Optimistic Fair Exchange Protocol Based on Short Signature

Sun

Qing

et al. 2010

2010 Second International Conference on Communication Software and Networks

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In CIS2008, Gao et al. suggested an abuse-free optimistic fair exchange protocol based on the short signature. Their scheme is very efficient in terms of communication. In this paper, we point out that their scheme has two weaknesses. These weaknesses may lead to an unfair situation that Bob may obtain Alice's signature, but Alice can not obtain Bob's signature. In order to overcome these weaknesses, we propose a new secure abuse-free optimistic fair exchange protocol. In the new protocol, both parties can contact the trusted third party and settle the argument before the deadline. Moreover, we give a formal proof of fairness in the strand space model.

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Section: Analysis Of the Glx Schemementioning

confidence: 99%

Section: Analysis Of the Glx Schemementioning

confidence: 99%

See 1 more Smart Citation

New Optimistic Fair Exchange Protocol Based on Short Signature

Sun

Qing

et al. 2010

2010 Second International Conference on Communication Software and Networks

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“…Fair exchange protocols can be classified into different groups based on the type of content exchanged: (i) fair document exchange protocols [4][5][6][7][8][9][10]; (ii) optimistic fair exchange protocols of digital signature [11][12][13][14][15]; (iii) electronic contract signing protocols [16][17][18][19][20][21][22]; and (iv) certified e-mail/e-goods delivery protocols [23][24][25][26][27][28][29][30]. Optimistic fair exchange protocols of digital signature and contract signing protocols exchange digital signatures fairly.…”

Section: Introductionmentioning

confidence: 99%

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

Hwang

Lai

2015

Symmetry

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Abstract: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.

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“…The implementation of an effective protocol of this nature will result in greater confidence in ecommerce among consumers. This in turn will lead to an increase in online trade, since buyer confidence is considered to be the most difficult obstacle in e-commerce [8].…”

Section: Introductionmentioning

confidence: 99%