Date Attachable Offline Electronic Cash Scheme

Electronic cash (e-cash) is definitely one of the most popular research topics in the e-commerce field. It is very important that e-cash be able to hold the anonymity and accuracy in order to preserve the privacy and rights of customers. There are two types of e-cash in general, which are online e-c...

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Main Authors: Chun-I Fan, Wei-Zhe Sun, Hoi-Tung Hau
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/216973
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author Chun-I Fan
Wei-Zhe Sun
Hoi-Tung Hau
author_facet Chun-I Fan
Wei-Zhe Sun
Hoi-Tung Hau
author_sort Chun-I Fan
collection DOAJ
description Electronic cash (e-cash) is definitely one of the most popular research topics in the e-commerce field. It is very important that e-cash be able to hold the anonymity and accuracy in order to preserve the privacy and rights of customers. There are two types of e-cash in general, which are online e-cash and offline e-cash. Both systems have their own pros and cons and they can be used to construct various applications. In this paper, we pioneer to propose a provably secure and efficient offline e-cash scheme with date attachability based on the blind signature technique, where expiration date and deposit date can be embedded in an e-cash simultaneously. With the help of expiration date, the bank can manage the huge database much more easily against unlimited growth, and the deposit date cannot be forged so that users are able to calculate the amount of interests they can receive in the future correctly. Furthermore, we offer security analysis and formal proofs for all essential properties of offline e-cash, which are anonymity control, unforgeability, conditional-traceability, and no-swindling.
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language English
publishDate 2014-01-01
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series The Scientific World Journal
spelling doaj-art-d58008d8d6ff4475ab35f08c92c1e3b72025-02-03T01:02:32ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/216973216973Date Attachable Offline Electronic Cash SchemeChun-I Fan0Wei-Zhe Sun1Hoi-Tung Hau2Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung 80424, TaiwanDepartment of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung 80424, TaiwanDepartment of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung 80424, TaiwanElectronic cash (e-cash) is definitely one of the most popular research topics in the e-commerce field. It is very important that e-cash be able to hold the anonymity and accuracy in order to preserve the privacy and rights of customers. There are two types of e-cash in general, which are online e-cash and offline e-cash. Both systems have their own pros and cons and they can be used to construct various applications. In this paper, we pioneer to propose a provably secure and efficient offline e-cash scheme with date attachability based on the blind signature technique, where expiration date and deposit date can be embedded in an e-cash simultaneously. With the help of expiration date, the bank can manage the huge database much more easily against unlimited growth, and the deposit date cannot be forged so that users are able to calculate the amount of interests they can receive in the future correctly. Furthermore, we offer security analysis and formal proofs for all essential properties of offline e-cash, which are anonymity control, unforgeability, conditional-traceability, and no-swindling.http://dx.doi.org/10.1155/2014/216973
spellingShingle Chun-I Fan
Wei-Zhe Sun
Hoi-Tung Hau
Date Attachable Offline Electronic Cash Scheme
The Scientific World Journal
title Date Attachable Offline Electronic Cash Scheme
title_full Date Attachable Offline Electronic Cash Scheme
title_fullStr Date Attachable Offline Electronic Cash Scheme
title_full_unstemmed Date Attachable Offline Electronic Cash Scheme
title_short Date Attachable Offline Electronic Cash Scheme
title_sort date attachable offline electronic cash scheme
url http://dx.doi.org/10.1155/2014/216973
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