| 摘要: |
| 利用P2P的方法实现了一个共享和合作的安全存储系统,其中参与节点运行Paramecium协议或其他兼容的DHT(distributed hash table)协议形成自组织覆盖层,维护系统的组织结构和提供路由服务.由于该系统为开放式结构,引入了基于PKI的安全认证机制以确保用户数据的授权访问.用户数据和副本标示的绑定支持了安全的数据自修复;副本类型的引入提供了安全的共享写.初步的分析和实验表明,该P2P系统在现实条件下,在消耗较低的维护带宽的同时维持了较高的可靠性并提供了较好的读写性能. |
| 关键词: 对等网络 高伸缩性 安全可靠存储系统 |
| DOI： |
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| 基金项目:Supported by the National High-Tech Research and Development Plan of China under Grant No.2002AA104580(国家高技术研究发展计划(863));the National Natural Science Foundation of China under Grant Nos.90412006,60273007,60373004,60373005(国家自然科学基金) |
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| P2P-Oriented Secure Reliable Storage System |
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CHEN Ming,YANG Guang-Wen,LIU Xue-Zheng,SHI Shu-Ming,WANG Ding-Xing
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| Abstract: |
| This paper proposes a cooperative secure reliable storage system depending on pure P2P and supporting self-repair. Participant nodes of this system form an overlay by Paramecium protocol, which maintains the organization of system and provides routing service, or other compatible distributed hash table (DHT) protocols. The PKI authentication mechanism is introduced to ensure security in an open environment. Binding user data with replica identifiers supports secure auto-repair. The introduction of replica types provides secure sharing-write. Preliminary analysis and experiments demonstrate that it maintains a high reliability and read/write performance in real settings while keeping the cost of maintenance bandwidth low. |
| Key words: P2P (peer-to-peer) high salability secure reliable storage system |
