| 基于可信计算平台的电子现金技术 |
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| 作者姓名： | 沈丽红 徐震 |
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| 作者单位： | 1. 中国科学院研究生院,北京 100080;
2. 信息安全共性技术国家工程研究中心,北京 100080;
3. 中国科学院软件研究所信息安全国家重点实验室,北京 100190 |
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| 基金项目： | 国家863基金(2007AA0Z412)和国家自然科学基金(60603017)资助 |
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| 摘 要： | 基于可信计算平台提出了一种新的离线电子现金方案,该方案将电子现金、用户身份、平台身份三者有机绑定在一起,利用可信计算平台的认证技术和存储保护功能,极大地增强了电子现金的安全性,同时还具有支付起源非否认、电子现金有限流通期限等特点.该方案对于电子现金的备份,电子现金的盗用和丢失,都提供了良好的保护,并对所提出的电子现金协议进行了详细的安全性分析.
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| 关 键 词： | 电子现金 可信计算平台 TPM 盲签名 |
| 收稿时间： | 2008-12-10 |
| 修稿时间： | 2009-04-30 |
Electronic cash based on trusted computing platform |
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| Authors: | SHEN Li-Hong XU Zhen |
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| Institution: | 1. The Graduate University of the Chinese Academy of Sciences,Beijing 100049, China;
2. National Engineering Research Center of Information Security, Beijing 100080, China;
3. State Key Laboratory of Information Security,Chinese Academy of Sciences,Beijing 100080,China |
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| Abstract: | 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. |
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| Keywords: | electronic cash trusted computing platform TPM blind signatures |
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