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A Policy Integration Method Based on multilevel security for Data Integration

Wuhan University Journal of Natural Sciences 2015年第6期20卷 483-489页

作者： WANG Xinming TAN Haoxiang CHEN Kaijun TANG Hua ZHAO Gansen TANG Yong NIE Ruihua School of Computer Science South China Normal University

Integrating and sharing data from different data sources is one of the trends to make better use of data. However, data integration hampers data confidentiality where each data source has its own access control policy. This paper includes a discussion on the issue about access control across multiple data sources when they arc combined together in the scenario of searching over these data. A method based on multilevel security for data integration is proposed. The proposed method allows the merging of policies and also tackles the issue of policy conflicts between different data sources.

关键词： policy integration multilevel security data integra-tion data confidentiality

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Integrated criteria for covert channel auditing

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第6期9卷 737-743页

作者： Chang-da WANG Shi-guang JU School of Computer Science and Telecommunications Engineering Jiangsu University Zhenjiang 212013 China School of Computer Science Carleton University Ottawa Ontario K1S 5B6 Canada

A new concept, the security level difference of a covert channel, is presented, which means the security level span from the sender to the receiver of the covert channel. Based on this, the integrated criteria for covert channel auditing are given. Whereas TCSEC (Trusted Computer System Evaluation Criteria) or CC (Common Criteria for Information Technology security Evaluation) only use the bandwidth to evaluate the threat of covert channels, our new criteria integrate the security level difference, the bandwidth sensitive parameter, bandwidth, duration and instantaneous time of covert channels, so as to give a comprehensive evaluation of the threat of covert channels in a multilevel security system.

关键词： multilevel security Covert channel Covert channel auditing

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Enforcing a Source-end Cooperative multilevel Defense Mechanism to Counter Flooding Attack

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Computer Systems Science & Engineering 2023年第1期44卷 67-79页

作者： Saraswathi Shunmuganathan Department of Computer Science and Engineering Sri Sivasubramaniya Nadar College of EngineeringKalavakkamChennaiTamil Nadu603110India

The exponential advancement in telecommunication embeds the Internet in every aspect of *** of networks all over the world impose monumental risks on the Internet.A Flooding Attack(FA)is one of the major intimidating risks on the Internet where legitimate users are prevented from accessing network *** of the protective measures incorporated in the communication infrastructure,FA still persists due to the lack of global *** of the existing mitigation is set up either at the traffic starting point or at the traffic ending *** mitigation at one or the other end may not be a complete *** insist on better protection againstflooding attacks,this work proposes a cooperative multilevel defense *** proposed cooperative multilevel defense mechanism consists of two-level of *** thefirst level,it is proposed to design a Threshold-based rate-limiting with a Spoofing Resistant Tag(TSRT),as a source end countermeasure for High-Rate Flooding Attacks(HRFA)and spoofing *** the second level,the accent is to discriminate normal traffic after Distributed Denial of Service(DDoS)traffic and drop the DDoS traffic at the destination *** Congruence-based Selective Pushback(FCSP),as a destination-initiated countermeasure for the Low Rate Flooding Attack(LRFA).The source and the destination cooperate to identify and block the attack.A key advantage of this cooperative mechanism is that it can distinguish and channel down the attack traffic nearer to the starting point of the *** presentation of the agreeable cooperative multilevel safeguard mechanism is approved through broad recreation in *** investigation and the exploratory outcomes show that the proposed plan can effectively identify and shield from the attack.

关键词： Flooding spoofing cooperative solution multilevel security filtering pushback

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Integrity Based Access Control Model for multilevel XML Document

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Journal of Southwest Jiaotong University(English Edition) 2008年第2期16卷 109-114页

作者：洪帆冯学斌黄志郑明辉 School of Computer Science and Technology Huazhong University of Science and Technology

XML＇s increasing popularity highlights the security demand for XML documents. A mandatory access control model for XML document is presented on the basis of investigation of the function dependency of XML documents and discussion of the integrity properties of multilevel XML document. Then, the algorithms for decomposition/recovery multilevel XML document into/from single level document are given, and the manipulation rules for typical operations of XQuery and XUpdate： QUERY, INSERT, UPDATE, and REMOVE, are elaborated. The multilevel XML document access model can meet the requirement of sensitive information processing application.

关键词： XML Access control multilevel security Integrity

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多层安全数据库上的索引技术

多层安全数据库上的索引技术

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第二十二届中国数据库学术会议

作者：冯皓月周敏子杨晓明汪卫施伯乐杨根兴复旦大学计算机与信息技术系

1引言目前在商用数据库管理系统中,权限控制一般只会到自主访问控制的程度,但是在政府、军事等领域,需要更高级别的访问控制,即使对于很多商业企业而言,也有大量数据是关系企业机密的。多层关

关键词： Index multilevel security Access control Database security Database performance

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多级安全数据库系统OpenBASE Secure的多级关系模型

多级安全数据库系统OpenBASE Secure的多级关系模型

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第十八届全国数据库学术会议

作者：程万军彭成宝张霞刘积仁东北大学软件中心

1引言数据库系统和网络系统是信息技术的基础和中心,也是国家信息基础结构的核心,它们的安全可靠与否是信息系统可靠发挥其作用的根本环节。面对信息技术应用领域的需求,各类数据库安全增强技术被用来提高数据库系统的安全功能和特性。... 详细信息

1引言数据库系统和网络系统是信息技术的基础和中心,也是国家信息基础结构的核心,它们的安全可靠与否是信息系统可靠发挥其作用的根本环节。面对信息技术应用领域的需求,各类数据库安全增强技术被用来提高数据库系统的安全功能和特性。本文所要谈及的多级安全(关系)数据库管理系统OpenBASE Secure是以商用大型关系数据库系统OpenBASE为基础和

关键词： multilevel Relation security Model multilevel security Database security Mutilevel Relational DBMS

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