计算机工程 ›› 2012, Vol. 38 ›› Issue (16): 74-76.doi: 10.3969/j.issn.1000-3428.2012.16.018

• 软件技术与数据库 • 上一篇    下一篇

一种带身份验证和灾备功能的数据同步模型

许建真 1a,1b,焦 阳 1a,2,冉九红 1a   

  1. (1. 南京邮电大学 a. 计算机学院;b. 物联网学院,南京 210003;2. 深圳清华大学研究院云计算与容灾技术实验室,广东 深圳 518057)
  • 收稿日期:2011-11-04 修回日期:2011-12-26 出版日期:2012-08-20 发布日期:2012-08-17
  • 作者简介:许建真(1966-),男,教授,主研方向:网间互联技术;焦 阳、冉九红,硕士研究生

Data Synchronization Model with Identity Authentication and Disaster Backup Function

XU Jian-zhen 1a,1b, JIAO Yang 1a,2, RAN Jiu-hong 1a   

  1. (1a. College of Computer; 1b. College of Internet of Things, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 2. Cloud Computing and Disaster Recovery Laboratory, Research Institution of Tsinghua University in Shenzhen, Shenzhen 518057, China)
  • Received:2011-11-04 Revised:2011-12-26 Online:2012-08-20 Published:2012-08-17

摘要: 针对数据同步过程中接入设备不合法和终端设备不稳定的问题,提出一种带身份验证和灾备功能的数据同步模型。该模型使用E-G方案管理密钥并进行身份验证。同步网络中的设备被定义为中心同步、灾备同步和成员同步3种角色,采用触发更新的方式交换数据。通过获得设备参数,计算优先级,从而选举灾备同步设备,实现设备角色无缝切换。应用结果证明了该模型的有效性。

关键词: 数据同步, 身份验证, 灾备功能, 发更新, 优先级, 无缝切换

Abstract: For the unauthorized access and unstable status of devices during the data synchronization process, data synchronization model with identity authentication and disaster backup function is presented. This model uses Eschenauer-Gligor(E-G) scheme to manage key while conducting authentication. Three roles, i.e. central synchronization, disaster backup synchronization and member synchronization devices existed in the synchronization network conform data switch with triggered update. Fetching main parameters of devices in the synchronization network, the model is calculated priority to elect backup synchronization device and perform seamless switch of different roles. Application result proves that the model is feasible.

Key words: data synchronization, identity authentication, disaster backup function, triggered update, priority level, seamless switch

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