收稿日期: 2008-12-10
修回日期: 2009-04-30
网络出版日期: 2009-09-15
基金资助
国家863基金(2007AA0Z412)和国家自然科学基金(60603017)资助
Electronic cash based on trusted computing platform
Received date: 2008-12-10
Revised date: 2009-04-30
Online published: 2009-09-15
沈丽红 , 徐震 . 基于可信计算平台的电子现金技术[J]. 中国科学院大学学报, 2009 , 26(5) : 712 -719 . DOI: 10.7523/j.issn.2095-6134.2009.5.018
In this paper, a new off-line electronic cash scheme based on trusted computing platform is proposed. In our scheme, electronic cash, user identity,and platform identity are efficiently bound together. With the attestation technology and storage protection on trusted computing platform, the security of electronic cash is enhanced significantly. In addition it also has properties such as payment source nonrepudiation, finite circulation period, etc. The backup of electronic cash, missing and stealing of electronic cash, those are all well protected in our scheme. The detailed security analysis is given in the final part of this paper.
Key words： electronic cash; trusted computing platform; TPM; blind signatures
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