The technology of electronic cash makes it possible to transmit digital money over communication networks during electronic transactions. Owing to the untraceability and unforgeability properties, electronic cash can protect the privacy of customers and guarantee the security of payments in the transactions. This manuscript introduces an efficient electronic cash protocol where it only requires minimal storage for each customer to withdraw w dollars from the bank and spend the w dollars in a sequence of transactions. Compared with traditional electronic cash protocols, the proposed method greatly reduces not only the storage required for the customers but the communication traffic in the transactions as well. Furthermore, the computation cost of the entire protocol is lower than the traditional ones and it also achieves the customer efficiency property. It turns out that the proposed protocol is much more suitable for the storage-limited or hardware-limited environments, such as smart card computing or mobile commerce, than the traditional electronic cash protocols in a sequence of payments. In addition, we examine the security of the proposed electronic cash protocol from the customer¡¦s, the shop¡¦s, and the bank¡¦s points of view, respectively. Since the proposed protocol is based on a generic partially blind signature scheme, it can be implemented by any partially blind signature scheme as long as it is secure and user efficient.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0727105-210007 |
| Date | 27 July 2005 |
| Creators | Lin, Bo-Wei |
| Contributors | Chun-I Fan, Chih-Hung Wang, D. J. Guan, Chung-Huang Yang, Chun-Hung Lin |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0727105-210007 |
| Rights | not_available, Copyright information available at source archive |
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