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National Chung Hsing University Institutional Repository - NCHUIR > 管理學院 > 財務金融學系所 > 依資料類型分類 > 期刊論文 >  AN AUTHENTICATED PAYWORD SCHEME WITHOUT PUBLIC KEY CRYPTOSYSTEMS

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/133276

標題: AN AUTHENTICATED PAYWORD SCHEME WITHOUT PUBLIC KEY CRYPTOSYSTEMS
作者: Wu, C.C.;Chang, C.C.;Lin, I.C.
林詠章
關鍵字: Hash chain;Key agreement;Micro-payment;PayWord
日期: 2009
Issue Date: 2012-12-14 09:48:35 (UTC+8)
關連: International Journal of Innovative Computing Information and Control, Volume 5, Issue 9, Page(s) 2881-2891.
摘要: Rivest and Shamir proposed a Pay Word scheme in 1996 that is an efficient micro-payment scheme using a one-way hash chain. However, Adachi et al. thought that Rivest and Shamir's Pay Word scheme suffered from a vulnerability to credit abuse attack and bank falsification attack. Therefore, they proposed an improved version to prevent these attacks in 2005. Unfortunately, there are still some drawbacks. First, the efficiency is degraded because the improved version using a public key cryptosystem. Second, it is vulnerable to an unauthorized settlement attack because it does not satisfy the requirement of authentication. Third, they change the Pay Word scheme front a postpaid to a prepaid payment method. It is not practical because it is good for the vendor but is not fair to the customer. In this paper, we propose an authenticated PayWord scheme to eliminate these drawbacks and enhance the performance. Our scheme does not require a public key cryptosystem and the customer's rights can be assured.
Relation: International Journal of Innovative Computing Information and Control
Appears in Collections:[依教師分類] 林詠章
[依資料類型分類] 期刊論文

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