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检索条件"任意字段=2nd International Conference on Security in Computer Networks and Distributed Systems, SNDS 2014"

共 309 条记录，以下是181-190 订阅

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Applying of network security situation awareness in smart substations

Applying of network security situation awareness in smart su...

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international conference on systems and Informatics (ICSAI)

作者： Wei Huang Yajuan Guo Ling Zhuang Qin Mei Xiaohai Xu Jiangsu Electric Power Research Institute Co. Ltd. Nanjing China

ISBN: (纸本)9781479954599

Applying of network security situation awareness in smart substations provides a high level view to understand the security situation of substations. After analyzing security threats faced by smart substations, this paper not only proposes a security situation awareness framework from aspects of physical security, network security, system security, protocol security and data security, but also puts forward a network security monitoring solution for substations, which uses a kind of dedicated smart substation network security situation awareness devices to collect security events, analyze them and generate situation analysis results. Further, we focus on several key technologies used in our framework. Finally, we describe a design scheme including hardware and software for the smart substation network security awareness system and its implementation architecture, in which a multi-layer software architecture is adopted by the system, and a combinatory of the Intel® Sandy Bridge, the bus structure and a modular design technology, is adopted in order to meet the need of high performance.

关键词： security Substations Protocols Communication networks Sensors computer architecture Data integration

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security vulnerabilities in open source projects: An India perspective

Security vulnerabilities in open source projects: An India p...

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international conference of Information and Communication Technology (ICoICT)

作者： Krishnashree Achuthan Sreekutty SudhaRavi Renuka Kumar Raghu Raman Amrita Center for Cybersecurity Systems & Networks Kollam India Center for Research in Advanced Technologies for Education Kollam India

Educational and governmental organizations are heavy users of Free and Open Source Software (FOSS) due to the numerous economic advantages it offers. But because of the lack of formal notification of vulnerabilities in them these users are left with exploitable risks in their systems with known vulnerabilities which could completely offset the economic gains and lead to unrecoverable losses. India is one of the largest consumers of Free and Open Source Software (FOSS) though in the last few years there has been concerted effort to contribute to the movement as well as create its own FOSS to support local languages. This paper compares and analyses the public disclosure of vulnerabilities in Free and Open Source Software (FOSS) to those of non-open source systems. Our case study with (N=218) Information Technology (IT) professionals working in computer systems, networks and application development areas indicates an urgent need to enhance vulnerability handling practices for Free and Open Source Software based applications. This study has interesting implications for Information and Communications Technology (ICT) policy makers in the government as well as private sector who are increasingly advocating the use of FOSS.

关键词： Databases Open source software security Government Standards organizations

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Impact of mobility on the performance of context-aware applications using floating content 2nd

Impact of mobility on the performance of context-aware appli...

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2nd international conference on Context-Aware systems and Applications, ICCASA 2013

作者： Ali, Shahzad Rizzo, Gianluca Marsan, Marco Ajmone Mancuso, Vincenzo Institute IMDEA Networks Madrid Spain Universidad Carlos III de Madrid Madrid Spain HES-SO Valais Sierre Switzerland Politecnico di Torino Torino Italy

ISBN: (纸本)9783319059389

The growth of mobile computing and the evolution of smart user devices are progressively driving applications towards "contextawareness", i.e., towards behaviors that change according to variations in context. Such applications use information that is restricted in space and time, making their communication requirements very different from those of conventional applications, so that opportunistic schemes are better suited to this case than more conventional communications. In this work we consider an opportunistic communication scheme called "Floating Content" (FC), which was specifically designed for server-less distributed context-aware applications, and we refine our previous investigation of the viability of FC for context-aware mobile applications, by considering the impact of different mobility models on the performance of FC. In particular, we consider four different mobility models, and, by using extensive simulation experiments, we investigate the performance of three different categories of context-aware applications that use FC. We also compare the simulation results to the performance predictions of our previously proposed simple analytical model. Results show that good performance can be achieved in content distribution by using FC under a variety of mobility models. They also show that a simple analytical model can provide useful performance predictions even for complex and realistic mobility models, although some application-specific characteristics might call for specialized models to improve the accuracy of performance estimates. © Springer international Publishing Switzerland 2014.

关键词： Analytical models

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Data security using serial commutative RSA CORE for multiple FPGA system

Data security using serial commutative RSA CORE for multiple...

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international conference on Devices, Circuits and systems (ICDCS)

作者： R. Ambika S. Ramachandran K. R. Kashwan Vinayaka Missions University Salem India Dept. of ECE S J B Institute of Technology Bangalore India Dept. of ECE Sona College of Technology Salem India

security systems play a vital role in protecting the important data in the organizations or multiple transceiver based communication systems and cryptography is one of the primary ways to protect the data. RSA algorithm is extensively used in the popular implementations of Public Key Infrastructures. Many cryptographic protocols and attacks on these protocols make use of the fact that the order in which encryption is performed does not affect the result of the encryption, i.e., encryption is commutative. This paper presents the implementation of a cryptography core based on Commutative RSA public key cryptography algorithm for accomplishing data security and authentication in environment comprising multiple FPGA cores without any key exchange overheads. In this work, in spite of considering conventional two terminal communications, we have implemented a scalable architecture for multi distributed FPGA based systems that realizes commutative RSA algorithm for verifying data security among multiple transceiver terminals. The proposed system architecture has used the Montgomery multiplication algorithm with exponential modular multiplication and Radix-2 multiplication based multiparty cryptography. The proposed multiplier is able to work with any precision of the input operands, limited only by memory or control constraints. The result obtained for this approach has illustrated a very high computational efficiency with minimum memory or space occupancy and higher operational frequency.

关键词： computer architecture Field programmable gate arrays Encryption Algorithm design and analysis Transceivers Public key cryptography

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Dynamic Network Reconfiguration Algorithm

Dynamic Network Reconfiguration Algorithm

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作者： Khalid kh. Sharaf Abu Baker El Merghane Alaqsa University Neelain University

Quality of service is a term widely used in the last recent years in the area of networks. The Qos generally describes the assurance of sufficiently low delay and packet loss for certain types of applications or traffic, many distributed applications executed on networks of workstation require the interconnection network to provide some Qos support. These network must be able to support topology changes due to any failures occur(component failure , hot replacement, hot expansion) without stopping traffic ,the dynamic network reconfiguration(DNR) satisfy the Qos requirement. The dynamic reconfiguration of the interconnection network is advanced feature of some multicomputer to reduce the communication overhead. The DNR is defined as the process of changing from one routing function to another while in real time. In this paper we expound in depth the reconfiguration algorithm and many terms related to it.

关键词： computer networking, Quality of service, dynamic network reconfiguration, protocols.

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Proactive mobile agent security: A new access control approach based on the risk analysis

Proactive mobile agent security: A new access control approa...

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2012 2nd international conference on Digital Information Processing and Communications, ICDIPC 2012

作者： Dhouib, Hedi Loukil, Adlen Ammari, Ahmed Chiheb Jemai, Abderrazek Tunis Tunisia

ISBN: (纸本)9781467311069

The progress in the field of computer networks and Internet is increasing with tremendous volume in recent years. So, with today's complex, heterogeneous, and large networks, IT experts become more and more pressed to ensure high performing and highly available secure networking, notably with the emergence of the distributed systems and the rise of the users needs in this field where the birth of the agent technologies. © 2012 IEEE.

关键词： Mobile agents

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WSeH: Proposal for an adaptive monitoring framework for WSNs, with enhanced security and QoS support

WSeH: Proposal for an adaptive monitoring framework for WSNs...

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2012 2nd international conference on Digital Information and Communication Technology and it's Applications, DICTAP 2012

作者： Dadarlat, Vasile Department of Computer Science Technical University of Cluj-Napoca Cluj-Napoca Romania

ISBN: (纸本)9781467307338

Wireless sensor networks (WSN) are highly distributed self-organized systems, the associated research being growing at a tremendous pace, and targeting various application domains. The successful implementation of such networks is dependent on the enabling technologies (such as digital electronics and wireless communications), as well as the provisioning of Quality of Service (QoS) and various security features in the networks. This paper focuses on the main characteristics and the current development status of the: management and monitoring, security and QoS topics, an overview of the recent progress being given. The paper examines and discusses the challenges of an adaptive monitoring framework (WSeH framework) with enhanced security and QoS support for WSNs, proposing a generic architecture and opening research issues. © 2012 IEEE.

关键词： Quality of service

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Research on cloud computing security problem and strategy

Research on cloud computing security problem and strategy

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2012 2nd international conference on Consumer Electronics, Communications and networks, CECNet 2012

作者： Liu, Wentao Department of Computer and Information Engineering Wuhan Polytechnic University Wuhan Hubei Province 430023 China

ISBN: (纸本)9781457714153

The cloud computing is a new computing model which comes from grid computing, distributed computing, parallel computing, virtualization technology, utility computing and other computer technologies and it has more advantage characters such as large scale computation and data storage, virtualization, high expansibility, high reliability and low price service. The security problem of cloud computing is very important and it can prevent the rapid development of cloud computing. This paper introduces some cloud computing systems and analyzes cloud computing security problem and its strategy according to the cloud computing concepts and characters. The data privacy and service availability in cloud computing are the key security problem. Single security method cannot solve the cloud computing security problem and many traditional and new technologies and strategies must be used together for protecting the total cloud computing system. © 2012 IEEE.

关键词： Cloud security

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Stealth and Semi-Stealth MITM Attacks, Detection and Defense in IPv4 networks

Stealth and Semi-Stealth MITM Attacks, Detection and Defense...

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2nd IEEE international conference on Parallel, distributed and Grid Computing (PDGC)

作者： Samineni, Naga Rohit Barbhuiya, Ferdous A. Nandi, Sukumar Indian Inst Technol Guwahati Dept Comp Sci & Engn Gauhati 781039 Assam India

ISBN: (纸本)9781467329255;9781467329224

A Man-In-The-Middle(MITM) attack is one of the most well known attack on the computer networks. Out of the several variations of MITM, Address Resolution Protocol(ARP) Spoofing/ Poisoning is widely used in packet interception and on-the-fty manipulation. Traditional MITM attacks by ARP Poisoning expose the attacker's identity and thereby physical location. In this paper, to the best of our knowledge it is for the first time that an MITM attack has been added with stealth capabilities. We propose two new attacks namely Stealth MITM(SMITM) and Semi-Stealth MITM(SSMITM) at the Data Link Layer using ARP Spoofing which add stealth capabilities to MITM attacks, thereby concealing the identity of an attacker. Finally, we give a detection and defense technique for the attacks. All the attacks proposed in the paper have been verified and successfully validated in a 300+ node real production network and test beds which include nodes with latest Linux and Windows operating systems under default and secured network scenarios. The results have been 100% effective and have proved the reproducibility of the proposed attacks.

关键词： Man In The Middle Attacks (MITM) Stealth Man In The Middle Attacks (SMITM) networks and Information security IPv4 Network security ARP Poisoning

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SAFCM: A security-aware feedback control mechanism for distributed real-time embedded systems

SAFCM: A security-aware feedback control mechanism for distr...

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18th IEEE international conference on Embedded and Real-Time Computing systems and Applications, RTCSA 2012

作者： Ma, Yue Jiang, Wei Sang, Nan Pop, Paul School of Computer Science and Engineering University of Electronic Science and Technology of China China Informatics and Mathematical Modeling Department Technical University of Denmark DK-2800 Kongens Lyngby Denmark

ISBN: (纸本)9781467330176

distributed Real-time Embedded (DRE) systems are facing great challenges in networked, unpredictable and especially unsecured environments. In such systems, there is a strong need to enforce security on distributed computing nodes in order to guard against potential threats, while satisfying the real-time requirements. This paper proposes a security-Aware Feedback Control Mechanism (SAFCM) which has the ability to dynamically change the security level to guarantee soft real-time requirements and make the security protection as strong as possible. In order to widely support distributed real-time systems, a multi-input multi-output feedback loop is designed and a model predictive controller is deployed based on an equation model that describes the dynamic behavior of the DRE systems. This control loop uses security level scaling to globally control the CPU utilization and security performance for the whole system. We propose a "security level" metric based on an evolution of cryptography algorithms used in embedded systems. Experimental results demonstrate that SAFCM not only has the excellent adaptivity compared to open-loop mechanism, but also has a better overall performance than PID control mechanism. © 2012 IEEE.

关键词： Feedback control

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