| 真实应用环境下的PKI信任模型 |
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| 作者姓名： | 吴晶晶 荆继武 王跃武 林璟锵 刘怡聪 |
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| 作者单位： | 1. 中国科学技术大学电子工程与信息科学系, 合肥 230027;
2. 中国科学院研究生院信息安全国家重点实验室, 北京 100049 |
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| 基金项目： | 国家高技术研究发展计划(863)(2006AA01Z454)资助 |
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| 摘 要： | 通过为PKI系统建立信任模型,可以更好地了解这一复杂信任体系中各实体间信任关系建立的过程.在现有模型的基础上,引入更加符合真实应用环境的谓词逻辑和信任参数,扩展了原有模型信任推导方法,并给出了新方法下的认证规则和信任规则.同时结合信任度概率模型,分析了各代表性PKI架构信任传递的过程,以及系统架构对实体间信任度的影响.分析的结果对于构建真实应用环境下的PKI系统有一定指导意义.
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| 关 键 词： | PKI 信任模型 概率模型 真实应用环境 |
| 收稿时间： | 2008-06-26 |
| 修稿时间： | 2008-11-28 |
Trust model for Public Key Infrastructure in the real-world environment |
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| Authors: | WU Jing-Jing JING Ji-Wu WANG Yue-Wu LIN Jing-Qiang Liu Yi-Cong |
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| Institution: | 1. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China;
2. State Key Lab. of Information Security, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Through reasoning about PKI trust model, researchers can learn more about the establishment and transfer of trust relationships in PKI systems. Based on the existing models, we proposed a set of trust logics with practical predications and trust parameters. By utilizing these logics, we have extended the derive formulas for entity's authentication and authorization and analyzed the relationship between PKI structure and trust probabilistic. |
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| Keywords: | Public Key Infrastructure (PKI) trust model probabilistic model real-world environment |
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