| 利用容错技术提高P2P网络安全 |
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| 引用本文： | 曹来成.利用容错技术提高P2P网络安全[J].哈尔滨工业大学学报,2009,41(3):183-186. |
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| 作者姓名： | 曹来成 |
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| 作者单位： | 兰州理工大学,计算机与通信学院,兰州,730050
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| 基金项目： | 国家高技术研究发展计划(863计划)，兰州理工大学科研发展资助项目 |
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| 摘 要： | 为了保护P2P网络中信任第三方TTP(Trusted Third Party)的私钥,提出了一种合成TTP的私钥的算法.基于容错技术,将TTP的私钥的影子分发给不同的影子卡和密钥合成服务器,利用这些影子来合成和保护TTP的私钥,并使用零知识证明技术以发现被篹改的影子卡,从而有效地保护了用TTP的私钥所签发的数字证书.安全性分析表明,该算法使整个P2P网络具有可复原性和抗合谋攻击性.
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| 关 键 词： | P2P网络 私钥 零知识证明 数字证书 |
Security enhancement of P2P network based on fault tolerance technology |
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| CAO Lai-cheng.Security enhancement of P2P network based on fault tolerance technology[J].Journal of Harbin Institute of Technology,2009,41(3):183-186. |
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| Authors: | CAO Lai-cheng |
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| Affiliation: | CAO Lai-cheng(School of Computer and Communication,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | In order to protect the private key of TTP(Trusted Third Party) in P2P network,an algorithm of synthesizing the private key of TTP was presented.Based on the fault tolerance technology,the shares of the private key of TTP were distributed to the synthesized key server and different share cards,and the private key of TTP was synthesized and protected through these shares.Moreover,the modified share cards were found by zero-knowledge proof technology.Then the digital certificates were effectively protected when they were signed by the private key of TTP.A security analysis proves that the algorithm makes the whole P2P networks have resilience and resistance against collusive attack. |
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| Keywords: | P2P network private key zero-knowledge proof digital certificate |
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