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International Conference on Cyber Security, Cyber Warfare and Digital Forensic (CyberSec)

作者： Maryam Tanha Seyed Dawood Sajjadi Torshizi Mohd Taufik Abdullah Fazirulhisyam Hashim Computer & Communication Systems Engineering Dept. Universiti Putra Malaysia Serdang Malaysia Computer Science Dept. Faculty of Computer Science Universiti Putra Malaysia Serdang Malaysia

The increased and widespread usage of digital multimedia has aroused great concerns regarding issues such as copyright protection, copy control and proof of ownership. Digital watermarking serves as a solution to these kinds of problems; however, digital watermarking techniques have demonstrated to possess vulnerabilities. Thus opening avenues for malicious attackers to abuse these security breaches. Therefore, maintaining the security of digital watermarked media i.e. text, image, audio and video has received considerable attention. This paper has conducted a comprehensive research with special emphasis on the classification of malicious attacks against digital watermarking. Subsequently, it reviews the current countermeasures available to mitigate the intentional attacks. In addition, it procures a foundation for the evaluation of various watermarking algorithms.

关键词： Watermarking Detectors Robustness Cryptography Multimedia communication Synchronization

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DynFire: Dynamic firewalling in heterogeneous environments

DynFire: Dynamic firewalling in heterogeneous environments

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World Congress on Internet Security (WorldCIS)

作者： Alexander Vensmer Sebastian Kiesel University of Stuttgart Institute of Communication Networks and Computer Engineering Stuttgart University of Stuttgart Computing Center Networks & Communications Systems Dept. Stuttgart

This paper presents “DynFire,” a novel approach for the role-based, dynamic control of network firewalls. DynFire allows an individually controlled, secure access to the ITresources of a large organization, with particular focus on mobile users and users with restricted rights, such as subcontractors. The basic assumption behind DynFire is that, within a secured network domain separated from the Internet, we can establish a temporary binding between an IP address and a single user ID. Whenever a user connects to or disconnects from this secure network domain, firewalls are configured accordingly, using a centralized “Firewall Manager” and standardized signaling protocols.

关键词： Fires Security Protocols Internet IP networks Network topology Topology

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On the design and development of webinos: A distributed mobile application middleware

On the design and development of webinos: A distributed mobi...

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12th IFIPWG6.1 International Conference on Distributed Applications and Interoperable systems, DAIS 2012

作者： Lyle, John Faily, Shamal Fléchais, Ivan Paul, André Göker, Ayşe Myrhaug, Hans Desruelle, Heiko Martin, Andrew Department of Computer Science University of Oxford United Kingdom Fraunhofer Institute for Open Communication Systems Germany AmbieSense Ltd United Kingdom Department of Information Science City University London United Kingdom Ghent University – IBBT Dept. of Information Technology Ghent Belgium

ISBN: (纸本)9783642308222

As personal devices become smarter, opportunities arise for sharing services, applications and data between them. While web technologies hold the promise of being a unifying layer, browsers lack functionality for supporting inter-device communication, synchronization, and security. To address this, we designed webinos: a cross-device distributed middleware providing interoperability, compatibility and security for mobile web applications. In this paper we present a case study of the webinos project, showing how the architecture of webinos was specified, designed and implemented, and reflect on several lessons learned. © IFIP International Federation for Information Processing 2012.

关键词： Middleware

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Enabling data protection through PKI encryption in IoT m-Health devices

Enabling data protection through PKI encryption in IoT m-Hea...

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IEEE Symposium on Bioinformatics and Bioengineering (BIBE)

作者： Charalampos Doukas Ilias Maglogiannis Vassiliki Koufi Flora Malamateniou George Vassilacopoulos Dept. of Information and Communication Systems Engineering University of Aegean Dept. of Computer Science and Biomedical Informatics University of Central Greece Dept. of Digital Systems University of Piraeus Greece

Ambient Assisted Living (AAL) aims at providing unobtrusive support to frail and elderly people for their daily life based on their context and situation. To this end, systems and services are required which are user-centric and adaptable towards the needs and capabilities of the people in need of care. The continuous integration of leading-edge technologies, such as cloud and wireless communication technologies, in the context of the Internet of the Things (IoT), can meet this requirement by enabling a new form of communication between frail and elderly people, their environment and relevant groups of care givers. However, for IoT-based systems to reach their full potential, sound answers need to be provided to the important security questions arisen, particularly those regarding authentication of entities (people and environmental objects) and data privacy. This paper presents a system based on Gateways (GW) that aggregate health sensor data and resolve security issues through digital certificates and PKI data encryption.

关键词： Logic gates Wireless sensor networks Encryption Internet Wireless communication

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Corrigendum to “Jamming effect analysis of infrared reticle seeker for directed infrared countermeasures” [Infrared Phys. Technol. 55/5 (2012) 431–441]

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Infrared Physics & Technology 2013年 56卷 100-100页

作者： Tae-Wuk Bae Byoung-Ik Kim Young-Choon Kim Sang-Ho Ahn Stanford Center for Image Systems Engineering Stanford University CA 94305 USA School of Electrical Engineering and Computer Science Kyungpook National University South Korea Dept. of Information and Communication Engineering Youngdong University South Korea Dept. of Electronic Engineering Inje University South Korea

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Bringing IoT and Cloud Computing towards Pervasive Healthcare

Bringing IoT and Cloud Computing towards Pervasive Healthcar...

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International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS)

作者： Charalampos Doukas Ilias Maglogiannis Dept. of Information & Communication Systems Engineering University of the Aegean Samos Greece Dept. of Computer Science & Biomedical Informatics University of Central Greece Lamia Greece

ISBN: (纸本)9781467313285

Pervasive healthcare applications utilizing body sensor networks generate a vast amount of data that need to be managed and stored for processing and future usage. Cloud computing among with the Internet of Things (IoT) concept is a new trend for efficient managing and processing of sensor data online. This paper presents a platform based on Cloud Computing for management of mobile and wearable healthcare sensors, demonstrating this way the IoT paradigm applied on pervasive healthcare.

关键词： Cloud computing Medical services Clouds Biomedical monitoring Mobile communication Real time systems

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Time-domain preamble-based SNR estimation for OFDM systems in doubly selective channels

Time-domain preamble-based SNR estimation for OFDM systems i...

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2012 IEEE Military communications Conference, MILCOM 2012

作者： Yang, Fan Zhang, Xi Zhang, Zhong-Pei School of Communication and Information Engineering University of Electronic Science and Technology of China Chengdu 611731 China Networking and Information Systems Laboratory Dept. of Electrical and Computer Engineering Texas A and M University College Station TX 77843 United States National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China Chengdu 611731 China

ISBN: (纸本)9781467317290

In wireless orthogonal frequency division multiplexing (OFDM) systems, the knowledge of signal-to-noise ratio (SNR) plays an important role for system optimization. Most of the exiting literatures have studied the SNR estimation for perfect synchronization in additive white Gaussian noise (AWGN) channels, or in frequency selective channels. However, the realistic channels are always doubly selective, and there may exist some residual symbol timing offset (STO) and carrier frequency offset (CFO) after coarse synchronization in the time domain. In this paper, we take these into account and propose a time-domain average SNR estimation scheme using one OFDM training symbol (preamble) which has been divided into multiple parts with equal length. Compared with the timedomain low-complexity SNR estimator (TLSE), our proposed time-domain preamble-based SNR estimator (TPSE) can not only be implemented in the presence of STO and CFO, but also generate more accurate SNR estimation for the channels with large Doppler shift. The estimated SNR value based on our scheme in the time-domain can be further reused to improve the ensuing CFO estimation and fine synchronization efficiently. © 2012 IEEE.

关键词： Orthogonal frequency division multiplexing

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WSSecTool: A web service security analysis tool based on program slicing

WSSecTool: A web service security analysis tool based on pro...

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2012 IEEE 8th World Congress on Services, SERVICES 2012

作者： Fu, Wei Zhang, Yingzhou Zhu, Xianting Qian, Junyan College of Computer Nanjing University of Posts and Telecommunications Nanjing Jiangsu 210003 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing Jiangsu 210003 China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education Jiangsu Province Nanjing Jiangsu 210003 China Dept. of Computer Science and Technology Guilin Univ. of Electronic Technology Guilin 541004 China

ISBN: (纸本)9780769547565

With the development of web service, more and more attention has been drawn to web service in recent years. However, the damage caused by service security problems is becoming more and more serious nowadays. This paper develops a web service security analysis tool, WSSecTool, which is based on program slicing. This tool includes three modules namely slicing module, safety publishing module and testing module. Slicing module analyzes source codes of web service to generate method dependence graph (MDG). After MDG is generated, the tool slices MDG to detect the unsafe methods and the spread of them. Safety publishing module helps to hide unsafe methods to make them invisible to outer users after publishing. Testing module can test the services published by this tool to validate the correctness and feasibility of our analysis method. The experiments show that our tool is effective and practical. © 2012 IEEE.

关键词： Web services

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A computationally inexpensive empirical model of IEEE 802.11p radio shadowing in urban environments

A computationally inexpensive empirical model of IEEE 802.11...

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Annual Conference on Wireless On-Demand Network systems and Services

作者： Sommer, Christoph Eckhoff, David German, Reinhard Dressler, Falko Computer Networks and Communication Systems Dept. of Computer Science University of Erlangen Germany

ISBN: (纸本)9781612841885

We present a realistic, yet computationally inexpensive simulation model for IEEE 802.11p radio shadowing in urban environments. Based on real world measurements using IEEE 802.11p/DSRC devices, we estimated the effect that buildings and other obstacles have on the radio communication between vehicles. Especially for evaluating safety applications in the field of Vehicular Ad Hoc networks (VANETs), stochastic models are not sufficient for evaluating the radio communication in simulation. Motivated by similar work on WiFi measurements, we therefore created an empirical model for modeling buildings and their properties to accurately simulate the signal propagation. We validated our model using real world measurements in a city scenario for different types of obstacles. Our simulation results show a very high accuracy when compared with the measurement results, while only requiring a marginal overhead in terms of computational complexity. © 2010 IEEE.

关键词： Stochastic systems

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MQBM: an autonomic QoS multicast routing protocol for mobile ad hoc networks

MQBM: an autonomic QoS multicast routing protocol for mobile...

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IEEE International Conference on communications

作者： Salim Bitam Abdelhamid Mellouk Computer Science Department Mohamed Khider University Image Signal and Intelligent Systems Laboratory-LISSI Dept. of Networks and Telecoms IUT C/V University of Paris Est Creteil (UPEC)

ISBN: (纸本)9781457720529

Mobile ad hoc network (MANET) is a wireless network that consists of a large number of mobile and heterogeneous nodes interconnected by wireless links which move in an arbitrary direction with random velocity. It is characterized by the absence of any pre-existing infrastructure. This makes the transmission more difficult especially, in the case of multicast mode. Some of the most important applications that use the MANETs are the multimedia and real time systems. They require a very high level of quality of service (QoS) to make the network useful. In this paper, we propose a new QoS multicast routing protocol called MQBM for MANETs inspired by the bees' communication. It allows finding routes between the source and the head of multicast group responsible to communicate the packet toward the group members. Each node is allowed to transmit data only if the average end-to-end delay and the average bandwidth satisfy the QoS requirements. Extensive simulation results obtained using NS2 simulator, demonstrate the efficiency and the performance of the proposed protocol after comparisons against MAODV in terms of the average end-to-end delay and the average bandwidth as QoS metrics.

关键词： Mobile ad hoc network Multicast routing Quality of service Bees' communication NS2 Mobile ad hoc networks Quality of service End-to-end delay Multicast Routing protocols Wireless networks real-time systems

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