基于不可信賴托管者的公平電子現(xiàn)金

陳曉峰; 王育民

基于不可信賴托管者的公平電子現(xiàn)金

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- 文章訪問數(shù): 1998
- HTML全文瀏覽量: 104
- PDF下載量: 471
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2001-03-30
- 修回日期: 2001-09-10
- 刊出日期: 2002-11-19

Fair electronic cash based on untrustworthy trustee

摘要

摘要: 利用RSA盲簽名技術(shù),給出了一種基于托管者的公平電子現(xiàn)金協(xié)議,重復花費者將以非常大的概率被托管者恢復出其身份。與以前協(xié)議不同的是:除非托管者與銀行勾結(jié),他無法提取用戶的現(xiàn)金,而且托管者只能追蹤銀行要他追蹤的現(xiàn)金,從而最大程度的保證了用戶的隱私。該協(xié)議還可以追蹤可疑的現(xiàn)金和用戶,從而可防止和減少電子現(xiàn)金系統(tǒng)的犯罪活動洗錢,勒索等。用戶在提取現(xiàn)金時,托管者脫線提供服務,所以效率較高。
- 公平電子現(xiàn)金; 匿名撤消; 用戶追蹤
Abstract: A fair electronic cash protocol based on trustee is presented by using RSA blind signature technique in this paper, the identity of multi-spender will be revealed by trustee with very high probability. Contrasting with the previous protocol, the users money cannot be withdrawn unless the trustee is in collusion with the bank, and the trustee can only trace the money that the bank asked him to trace. So the privacy of the user can be ensured to the maximum limit. Also this protocol can be used to trace the dubious cash and the owner, thereby it may be exploited to decrease the crimes like money laundering, blackmailing, etc. in the electronic cash system. This protocol requires off-line participation of trustee when users withdraw the cash, so it is efficient for implementation.

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參考文獻(1)

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