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Enhance information Flow Tracking with Function Recognition

China Communications 2010年第6期7卷 24-29页

作者： Zhou Kan Huang Shiqiu Huang Shan Qi Zhengwei Gu Jian Guan Haibing School of software Shanghai Jliao Tong University Shanghai 200240 P. R. China Key Lab of Information Network Security Ministry of Public Security Department of Computer Science ＆ Engineering Shanghai Jiao Tong University Shanghai 200240 P. R China Shanghai Key Laboratory of Scalable Computing ＆ System Shanghai P. R. China

With the spread use of the computers, a new crime space and method are presented for criminals. Thus computer evidence plays a key part in criminal cases. Traditional computer evidence searches require that the computer specialists know what is stored in the given computer. Binary-based information flow tracking which concerns the changes of control flow is an effective way to analyze the behavior of a program. The existing systems ignore the modifications of the data flow, which may be also a malicious behavior. Thus the function recognition is introduced to improve the information flow tracking. Function recognition is a helpful technique recognizing the function body from the software binary to analyze the binary code. And that no false positive and no false negative in our experiments strongly proves that our approach is effective.

关键词： function recognition information flow tracking program behavior e-evidence.

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Incremental intrusion detecting method based on SOM/RBF

Incremental intrusion detecting method based on SOM/RBF

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International Conference on Machine Learning and Cybernetics

作者： Tian, Li-Ye Liu, Wei-Peng Dept. of Electronic and Information Engineering Naval Aeronautical and Astronautical University Yantai 264001 China State Key Laboratory of Information Security GUCAS Beijing 100039 China Trusted Computing Lab. College of Computer Beijing University of Technology Beijing 100022 China

ISBN: (纸本)9781424465262

An incremental intrusion detecting model is proposed in this paper. This model integrates unsupervised Self Organizing Map and supervised Radial Basis Function to complete incremental learning. Self Organizing Map can get new type intrusion information and generate new nodes in Radial Basis Function. By this model, intrusion of unknown type can be detected online. Experiment results show our model could detect new type intrusions without forgetting the old ones. © 2010 IEEE.

关键词： Self organizing maps

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Improving Efficiency of security Schemes in Automated Trust Negotiation

Improving Efficiency of Security Schemes in Automated Trust ...

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International Workshop on Education Technology and computer Science, ETCS

作者： Bailing Liu Hongwei Lu Yizhu Zhao Feng Ge College of Computer Science and Technology Huazhong University of Science and Technology Wuhan China Key Laboratory of Information Network Security Ministry of Public Security Shanghai China

ISBN: (纸本)9781424463886;9780769539874

Automated trust negotiation (ATN) is an approach that establishes mutual trust between strangers wishing to share resources or conduct business by gradually requesting and disclosing digitally signed credentials. When designing security schemes and systems in ATN, the negotiation efficiency, which is a desirable property, is not considered sufficiently. In this paper, a useful model of P. E. evaluation is proposed to enhance negotiation efficiency by improving the efficiency of security schemes used in ATN. The useful model of P. E. evaluation is responsible for choosing a most appropriate policy among several alternative policies that can advance a negotiation at the same time, which makes the negotiation more efficient.

关键词： information security Cryptography Educational technology computer security computer science Protection computer science education Educational institutions Access control Automatic control

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An Efficient Automated Trust Negotiation Framework Supporting Adaptive Policies

An Efficient Automated Trust Negotiation Framework Supportin...

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International Workshop on Education Technology and computer Science, ETCS

作者： Bailing Liu Hongwei Lu Yizhu Zhao College of Computer Science and Technology Huazhong University of Science and Technology Wuhan China Key Laboratory of Information Network Security Ministry of Public Security Shanghai China

ISBN: (纸本)9781424463886;9780769539874

Automated trust negotiation (ATN) is an approach that establishes mutual trust between strangers wishing to share resources or conduct business by gradually requesting and disclosing digitally signed credentials. Previous work on improving negotiation efficiency mainly focuses on using history negotiation information, which may leak much unnecessary information and cannot improve the negotiation efficiency if both negotiators do not have appropriate history information. Thus in this paper, we enhance the negotiation efficiency from a new aspect adaptive policies. An ATN framework is designed to enhance the negotiation efficiency, which can not only simplify the negotiation process and reduce the number of exchanged credentials and credential validations whenever possible, but also avoid to revealing unnecessary information during negotiations. This framework presents a number of innovative features, such as the support for overlapping virtual organizations (VOs for short) to evaluate trustworthiness level, and the use of fine-grained adaptive policies to adjust policies based on the trustworthiness levels.

关键词： History information security Educational technology computer science computer security Access control computer science education Educational institutions Protection

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Hierarchical certificateless signatures

Hierarchical certificateless signatures

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International Workshop on Wireless network Algorithm and Theory

作者： Zhang, Lei Wu, Qianhong Domingo-Ferrer, Josep Qin, Bo UNESCO in Data Privacy Department of Computer Engineering and Mathematics Universitat Rovira i Virgili Catalonia Spain Wuhan University School of Computer Key Lab. of Aerospace Information Security and Trusted Computing China Xi'an University of Technology School of Science Department of Maths China

ISBN: (纸本)9780769543222

Certificateless cryptography eliminates the key escrow problem in identity-based cryptography. Hierarchical cryptography exploits a practical security model to mirror the organizational hierarchy in the real world. In this paper, to incorporate the advantages of both types of cryptosystems, we instantiate hierarchical certificateless cryptography by formalizing the notion of hierarchical certificateless signatures. Furthermore, we propose an HCLS scheme which, under the hardness of the computational Diffie-Hellman (CDH) problem, is proven to be existentially unforgeable against adaptive chosen-message attacks in the random oracle model. As to efficiency, our scheme has constant complexity, regardless of the depth of the hierarchy. Hence, the proposal is secure and scalable for practical applications. © 2010 IEEE.

关键词： network security

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Efficient and identity-based signcryption with provably-secure

International Journal of Digital Content Technology and its ...

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International Journal of Digital Content Technology and its Applications 2010年第7期4卷 148-153页

作者： Wen, Yiling Ma, Jianfeng Moon, Sangjae Key Laboratory of Computer Networks and Information Security of Ministry of Education Xidian University Xi'an China Mobile Network Security Technology Research Center Kyungpook National University Daegu 702-701 Korea Republic of

The idea of signcryption is to provide a method to encrypt and sign data together, so it is more efficient than using an encryption scheme combined with a signature scheme. We present an identity-based signcryption solution, which is one of the most efficient, provably-secure schemes proposed to date. Our scheme admits provable security in the random oracle model under the bilinear Diffie-Hellman assumption using the definitions proposed by Boyen and it is also forward secure.

关键词： Cryptography

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Integrity Measurement Model Based on Trusted Virtual Platform

Integrity Measurement Model Based on Trusted Virtual Platfor...

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International Conference on Genetic and Evolutionary Computing (ICGEC)

作者： Gang Qiu Yulei Wang Lihua Zhou Ministry of Education Key Laboratory of Computer Network & Information Security Xidian University Xi'an China Network Information Center Nanyang Institute of Technology Nanyang China School of Computer Science and Technology Xidian University Xi'an China

A secure and trusted execution environment is a fundamental requirement for distributed network, so that the integrity of service provider platform should be verified prior to services' distribution in order to assure that the platform is free from a malicious modification and attack. In this paper, we proposed an implementation of trusted execution environment based on the combination of trusted computing and virtualization technology. On the service provider's platform, from the very beginning of Virtual Machine Monitor (VMM) was booted to the execution environment was set up, all of the platform status changes has been recorded into Platform Configuration Register (PCR) and reported to remote service requester, which make it sure about the trustworthy of the result. Furthermore, the VM image was leveraged to make the execution environment constructed more flexible. Analysis shows our method is efficient and secure.

关键词： security Virtual machining computer architecture Presses Hardware Virtual machine monitors Kernel

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Bundle transport model of satellite delay tolerant networks

Bundle transport model of satellite delay tolerant networks

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International Conference on Future computer and Communication, ICFCC

作者： Haizheng Yu Jianfeng Ma Hong Bian Key Laboratory of Computer Network and Information Security Xidian University Xi'an China School of Mathematical Sciences Xinjiang Normal University Urumqi China

ISBN: (纸本)9781424458219;9781424458240

The data is transmitted between a small satellite near earth and the ground stations. For transmitting reliably, the data is divided into many fragments, and these fragments are encapsulated as multiple bundles with the bundle protocol of Delay/Disruption Tolerant networks (DTNs). Some bundles which may be error are requested to retransmit in next communication link. An r-uniform random hypergraph model is introduced and the relation is analyzed between the probability of error bundle and the structure of hypergraph.

关键词： Disruption tolerant networking Satellite ground stations Space technology computer network reliability Error correction laboratories information security Ad hoc networks Transport protocols Random number generation

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Constructions of Maiorana-McFarland's Bent Functions of Prescribed Degree

Constructions of Maiorana-McFarland's Bent Functions of Pres...

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International Conference on Computational Intelligence and security

作者： Feng-rong Zhang Yu-pu Hu Hua Ma Min Xie Key laboratory of computer network and information security Ministry of Education Xidian University Xi'an China School of science Xidian University Xi'an China

A Boolean function with an even number n = 2k of variables is called Bent if it is maximally nonlinear. A technique on constructing Maiorana-McFarland's Bent functions of arbitrary degree is described. Based on the properties of Maiorana-McFarland's Bent functions, a Bent function with arbitrary degree can be constructed by changing the order of concatenating linear functions.

关键词： Boolean functions Cryptography Polynomials Correlation computer science Encoding Hamming weight

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Novel identity-based blind signature for electronic voting system

Novel identity-based blind signature for electronic voting s...

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2nd International Workshop on Education Technology and computer Science, ETCS 2010

作者： Zhang, Leyou Hu, Yupu Tian, Xu'an Yang, Yang Department of Mathematical Science Xidian University Xi'an ShaanXi 710071 China Key Lab. of Computer Networks and Information Security Ministry of Education Xidian University Xi'an ShaanXi 710071 China Xi'an Communications Institute Xi'an ShaanXi 710106 China

ISBN: (纸本)9780769539874

Blind signature allows the user to obtain a signature of a message in a way that the signer learns neither the message nor the resulting signature. At present, many electronic voting systems(E-voting) based on the blind signature scheme have been proposed. In this paper, we introduce a novel identity-based blind signature scheme. This signature scheme is constructed in the standard model and achieves the full security(a strong security model in the identity-based cryptography). In addition, we reduce its security to the computational Diffie-Hellman Problem(CDH). Finally, we show our proposed scheme can be used to construct an identity-based E-voting system. To the best of our knowledge, this is the first identity-based E-voting system which is constructed in the standard model. © 2010 IEEE.

关键词： Cryptography

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