| An Efficient Secure Real-Time Concurrency Control Protocol |
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| 引用本文： | XIAO Yingyuan LIU Yunsheng CHEN Xiangyang. An Efficient Secure Real-Time Concurrency Control Protocol[J]. 武汉大学学报:自然科学英文版, 2006, 11(6): 1899-1902. DOI: 10.1007/BF02831902 |
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| 作者姓名： | XIAO Yingyuan LIU Yunsheng CHEN Xiangyang |
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| 作者单位： | [1]Department of Computer Science and Engineering, Tianjin University of Technology, Tianjin 300191, China [2]School of Software, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China [3]School of Computer Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, Hubei, China |
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| 基金项目： | Supported by the Defense Pre-Research Project of the ＂Tenth Five-Year-Plan＂ of China （413150403） |
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| 摘 要： | 0 IntroductionThe real-ti me database system(RTDBS) is usually ap-pliedto the safety-critical applications .Inthese applica-tions,besides the ti ming constraints ,it is essential to preventunlawful information flows between different transactions .The traditional real-ti me concurrency protocols such as two-phase locking high priority (2PL-HP)[1], priority ceiling(PC)[2], OPT-WAIT[3], OPT-SACRIFICE[4], etc ., con-centrate on how to mini mize the missing deadlines ratio oftransactio…
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| 关 键 词： | 实时数据库 并行控制 信息安全 隐蔽信道 |
| 文章编号： | 1007-1202（2006）06-1899-04 |
| 收稿时间： | 2006-03-20 |
An efficient secure real-time concurrency control protocol |
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| Xiao Yingyuan,Liu Yunsheng,Chen Xiangyang. An efficient secure real-time concurrency control protocol[J]. Wuhan University Journal of Natural Sciences, 2006, 11(6): 1899-1902. DOI: 10.1007/BF02831902 |
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| Authors: | Xiao Yingyuan Liu Yunsheng Chen Xiangyang |
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| Affiliation: | (1) Department of Computer Science and Engineering, Tianjin University of Technology, 300191 Tianjin, China;(2) School of Software, Huazhong University of Science and Technology, 430074 Wuhan, Hubei, China;(3) School of Computer Science and Engineering, Wuhan Institute of Technology, 430073 Wuhan, Hubei, China |
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| Abstract: | Secure real-time databases must simultaneously satisfy two requirements in guaranteeing data security and minimizing the missing deadlines ratio of transactions. However, these two requirements can conflict with each other and achieve one requirement is to sacrifice the other. This paper presents a secure real-time concurrency control protocol based on optimistic method. The concurrency control protocol incorporates security constraints in a real-time optimistic concurrency control protocol and makes a suitable tradeoff between security and real-time requirements by introducing secure influence factor and real-time influence factor. The experimental results show the concurrency control protocol achieves data security without degrading real-time perform ance significantly. |
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| Keywords: | real-time databases concurrency control security covert channel |
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