Title: 電子現金之研究
A Study on Digital Cash
Authors: 葉士民
Yeh, Shih-Ming
黃景彰, 楊千
Jing-Jang Hwang, Chyan Yang
資訊管理研究所
Keywords: 電子現金;電子商務;可用一次憑證;盲目簽章;digital cash;electronic cash;electronic commerce;one-show credential;blind signature
Issue Date: 1995
Abstract: 本論文探討電子現金的技術及其應用, 以及相關議題, 並提出一個新的
電子現金的模式本論文以﹒kamoto 與 Ohta 所提的理想電子現金的六個
條件為主軸,對電子現金的理論文獻及現有的系統作探討 回顧本論文提出
的新的電子現金模式不像 Chaum 的 ecash 提供完全不可追查性 南加大
的 NetCash 依賴誠實的電子現金伺服器; 而是把交易產生的資訊分成幾
個部份,除非法院許可,才能匯總各單位所有的資訊得出使用者的身份 這
樣的模式提供了適當的隱私性, 必要時又能稽核 此外, 如同 NetCash,
這個模式所需的資料庫比 ecash 小多了
In this thesis, we study digital cash--one of the major payment
instrumentsin the era of electronic commerce.Literacture and
existed digital cash systems are surveyed using criteriaof ideal
electronic cash, proposed by Okamoto and Ohta, as a framework
withemphasis on security and privacy (untraceability).This
thesis proposes a new digital cash model. Unlike Chaum's ecash
thatprovides unconditional untraceability and USC's NetCash that
relies ontrusted currency server, this model separates
transaction information intoseveral parts. The identity of a
participator won't be revealed unlessthe court issues a
subpoena. It provides adequate privacy and accountability.As
NetCash, the database this model employed is much smaller and
easily accessible than ecash's.
URI: http://140.113.39.130/cdrfb3/record/nctu/#NT840396024
http://hdl.handle.net/11536/60556
Appears in Collections:Thesis