A New Fair E-Payment Protocol Based on Certificateless Concurrent SignatureReport as inadecuate




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Several protocols for fair exchange have been proposed in recent years,but some of them cannot achieve the fairness in payment. In these traditional ways, seller gets the payment after having sent e-good or buyer gets the e-good after having paid for it, so that is unfair between seller and buyer. And this paper proposed a new fair e-payment protocol based on provably secure certificateless concurrent signature scheme, it guarantees the fairness of the transaction between buyer and seller. At the end of the transaction, e-good and e-check are valid concurrently. It is more convenient and secure because it doesn’t need involvement of TTP, so this protocol can be applied to the trade of digital products in network environment.

KEYWORDS

electronic commerce; e-payment protocol; certificateless concurrent signature; fair exchange

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Author: Minqing Zhang, Haiyan Xiao, Xiaoyuan Yang, Hua Li

Source: http://www.scirp.org/



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