A Secure Architecture for Nomadic User in IMS Network

2012 ◽  
Vol 4 (1) ◽  
pp. 1-17
Author(s):  
A. Abou El Kalam ◽  
M. Maachaoui ◽  
N. Idboufker ◽  
H. Ait Lahcen ◽  
A.Ait Ouahman
Keyword(s):  
Ip Networks ◽  
Service Access ◽  
Application Layer ◽  
Test Bed ◽  
Simulation Test ◽  
Security Vulnerabilities ◽  
Signaling Mechanism ◽  
Security Issues ◽  
Security Challenges ◽  
Access Information

The IP multimedia subsystem (IMS) is a basis for a significant new architecture which offers network operators the opportunity to expand their services, by integrating voice and multimedia communications and delivering them into new environments with new purposes. Basically, the IMS is an overlay network on top of IP layer that uses Session Initiation Protocol (SIP) as the primary signaling mechanism. SIP works at the application layer in IP networks. It is thus faced to not only the IP-networks security issues, but also to new issues which are related to the SIP protocol directly. Consequently, using IMS bears several new security challenges. This paper presents the most relevant SIP-related security vulnerabilities and threats, and the implementation and simulation test bed to experiment two versions of the SIP Asterisk software to emphasize these threats. The different security mechanisms that can be deployed to overcome the SIP security issues while putting emphasis the most important ones are discussed. Afterwards, the authors propose adaptable solutions to the SIP threats already identified for a specific service (access information from anywhere) in IMS context. Finally, conclusions are drawn and some perspectives are introduced to improve the security of multimedia applications.

scholarly journals A Robot Operating System Framework for Secure UAV Communications

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1369
Author(s):  
Hyojun Lee ◽  
Jiyoung Yoon ◽  
Min-Seong Jang ◽  
Kyung-Joon Park
Keyword(s):  
Operating System ◽  
Unmanned Aerial Vehicles ◽  
Ground Control ◽  
Unmanned Aerial System ◽  
Security Framework ◽  
Security Vulnerabilities ◽  
Robot Operating System ◽  
Security Issues ◽  
Aerial Vehicles ◽  
Ground Control Station

To perform advanced operations with unmanned aerial vehicles (UAVs), it is crucial that components other than the existing ones such as flight controller, network devices, and ground control station (GCS) are also used. The inevitable addition of hardware and software to accomplish UAV operations may lead to security vulnerabilities through various vectors. Hence, we propose a security framework in this study to improve the security of an unmanned aerial system (UAS). The proposed framework operates in the robot operating system (ROS) and is designed to focus on several perspectives, such as overhead arising from additional security elements and security issues essential for flight missions. The UAS is operated in a nonnative and native ROS environment. The performance of the proposed framework in both environments is verified through experiments.

scholarly journals A validated multi-agent simulation test bed to evaluate congestion pricing policies on population segments by time-of-day in New York City

2021 ◽  
Vol 101 ◽  
pp. 145-161
Author(s):  
Brian Yueshuai He ◽  
Jinkai Zhou ◽  
Ziyi Ma ◽  
Ding Wang ◽  
Di Sha ◽  
...  
Keyword(s):  
New York ◽  
New York City ◽  
York City ◽  
Congestion Pricing ◽  
Time Of Day ◽  
Test Bed ◽  
Simulation Test ◽  
Pricing Policies ◽  
Agent Simulation ◽  
Multi Agent

scholarly journals Cloud Security: Inter-Host Docker Container Communication using Vault Dynamic Secrets

2019 ◽  
Vol 9 (2S) ◽  
pp. 395-401
Keyword(s):  
Best Practices ◽  
Cloud Security ◽  
Simulation Environment ◽  
Monitoring Tool ◽  
Security Vulnerabilities ◽  
Security Issues ◽  
Industry Standard ◽  
Flooding Attacks ◽  
Arp Spoofing

In this paper we attempt to address Inter-Host Docker container communications security issues by incorporating a latest approach provided by Vault Hashicorp dynamic secret mechanism for managing SSH keys and server credentials. A simulation environment is prepared for Inter-Host container communication consisting of one host running locally and the peer host running as an AWS EC2 instance in cloud. Industry standard monitoring tool Grafana is used in the simulation environment to highlight the security impacts for any organization. We also draw special attention to some of the security vulnerabilities in docker container like ARP spoofing, Integrity of the docker host and containers and MAC flooding attacks. We try to list some best practices to be followed when using docker containers in any production deployments.

scholarly journals China's Energy Security:  Going Beyond the Traditional Approach

2021 ◽  
Author(s):  
◽  
Yang Gao
Keyword(s):  
Energy Security ◽  
Traditional Approach ◽  
Detailed Examination ◽  
External Energy ◽  
The West ◽  
Sharp Rise ◽  
Security Vulnerabilities ◽  
Policy Responses ◽  
Security Challenges ◽  
Growing Economy

<p>China's rapidly growing economy has seen a sharp rise in energy consumption and correspondingly a new focus on energy security. Over the last decade, China has adopted an energy security approach emphasizing its external energy supply, especially oil supply, which is quite similar to the approach established in industrialized Western countries (IWCs) since the 1970s' energy crises. However, China‟s energy situation is profoundly different from the West with over 90 percent of its energy being produced domestically and nearly 70 percent being coal-based. To explain why the approach in China is similar to that of major IWCs, I demonstrate that while the IWCs constructed their energy security concept and subsequent policy responses on their energy situation, China's approach has largely been influenced by a domestic ideational factor and Western energy security concept. By providing a detailed examination of China's energy situation, highlighting the unique energy security vulnerabilities and threats it faces, I argue current mainstream energy security thinking in China does not match its comprehensive energy situation. It is therefore not adequate to address its energy security challenges. The thesis concludes that, a 'broader' energy security approach, going beyond the traditional thinking, should be developed to incorporate more energy sectors and domestic energy issues in China.</p>

scholarly journals Security Challenges for Small Island Developing States: The Case of Cape Verde

2020 ◽  
Vol 14 (2) ◽  
pp. 155-177
Author(s):  
João Paulo Madeira
Keyword(s):  
Regional Cooperation ◽  
Interdisciplinary Approach ◽  
Cape Verde ◽  
Small Island ◽  
Contemporary History ◽  
Cape Verdean ◽  
Small Island Developing States ◽  
Security Issues ◽  
Security Challenges ◽  
Integration Mechanisms

This article is an exploratory, descriptive study, with a qualitative and interdisciplinary approach. It integrates concepts and perspectives of contemporary history, international relations, and security studies. Its main aim is to analyse security issues in Africa, taking as a reference the Cape Verde archipelago, which is part of the group of Small Island Developing States. This matter suggests a wider multidimensional approach that prioritizes the intersection of data obtained from a critical analysis in order to deepen regional cooperation and integration mechanisms. This can provide the Cape Verdean state with strategic options to prevent and mitigate potential security threats.

Systematic literature review on the security challenges of blockchain in IoT-based smart cities

Kybernetes ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zhihao Yu ◽  
Liang Song ◽  
Linhua Jiang ◽  
Omid Khold Sharafi
Keyword(s):  
Literature Review ◽  
Smart City ◽  
Smart Cities ◽  
Distributed Storage ◽  
Resource Planning ◽  
Academic Community ◽  
Security And Privacy ◽  
Content Type ◽  
Security Issues ◽  
Security Challenges

Purpose Security is the most important issue in Internet of Things (IoT)-based smart cities and blockchain (BC). So, the present paper aims to detect and organize the literature regarding security in the IoT-based smart cities and BC context. It also proposes an agenda for future research. Therefore, the authors did a statistical review of security in IoT and BC in smart cities. The present investigation aims to determine the principal challenges and disturbances in IoT because of the BC adoption, the central BC applications in IoT-based smart cities and the BC future in IoT-based smart cities. Design/methodology/approach IoT) has a notable influence on modernizing and transforming the society and industry for knowledge digitizing. Therefore, it may be perceived and operated in real time. The IoT is undergoing exponential development in industry and investigation. Still, it contains some security and privacy susceptibilities. Naturally, the research community pays attention to the security and privacy of the IoT. Also, the academic community has put a significant focus on BC as a new security project. In the present paper, the significant mechanisms and investigations in BC ground have been checked out systematically because of the significance of security in the IoT and BC in smart cities. Electronic databases were used to search for keywords. Totally, based on different filters, 131 papers have been gained, and 17 related articles have been obtained and analyzed. The security mechanisms of BC in IoT-based smart cities have been ranked into three main categories as follows, smart health care, smart home and smart agriculture. Findings The findings showed that BC’s distinctive technical aspects might impressively find a solution for privacy and security problems encountering the IoT-based smart cities development. They also supply distributed storage, transparency, trust and other IoT support to form a valid, impressive and secure distributed IoT network and provide a beneficial guarantee for IoT-based smart city users’ security and privacy. Research limitations/implications The present investigation aims to be comprehensive, but some restrictions were also observed. Owing to the use of some filters for selecting the original papers, some complete works may be excluded. Besides, inspecting the total investigations on the security topic in BC and the IoT-based smart cities is infeasible. Albeit, the authors attempt to introduce a complete inspection of the security challenges in BC and the IoT-based smart cities. BC includes significant progress and innovation in the IoT-based smart cities’ security domain as new technology. Still, it contains some deficiencies as well. Investigators actively encounter the challenges and bring up persistent innovation and inspection of related technologies in the vision of the issues available in diverse application scenarios. Practical implications The use of BC technology in finding a solution for the security issues of the IoT-based smart cities is a research hotspot. There is numerable literature with data and theoretical support despite the suggestion of numerous relevant opinions. Therefore, this paper offers insights into how findings may guide practitioners and researchers in developing appropriate security systems dependent upon the features of IoT-based smart city systems and BC. This paper may also stimulate further investigation on the challenge of security in BC and IoT-based smart cities. The outcomes will be of great value for scholars and may supply sights into future investigation grounds in the present field. Originality/value As the authors state according to their knowledge, it is the first work using security challenges on BC and IoT-based smart cities. The literature review shows that few papers discuss how solving security issues in the IoT-based smart cities can benefit from the BC. The investigation suggests a literature review on the topic, recommending some thoughts on using security tools in the IoT-based smart cities. The present investigation helps organizations plan to integrate IoT and BC to detect the areas to focus. It also assists in better resource planning for the successful execution of smart technologies in their supply chains.

Security Issues in Mobile Ad Hoc Networks

2014 ◽  
pp. 176-221 ◽  
Author(s):  
Sunil Kumar ◽  
Kamlesh Dutta
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Mobile Nodes ◽  
Security Vulnerabilities ◽  
Security Issues ◽  
Mobile Ad Hoc ◽  
Hoc Networks

A Mobile Ad hoc NETwork (MANET) is a self-organizing, infrastructure-less network of mobile nodes connecting by wireless links. In operation, the nodes of MANETs do not have a central control mechanism. It is known for its properties of routable network, where each node acts as a router to forward packets to other specific nodes in the network. The unique properties of MANET have made it useful for large number of applications and led to a number of security challenges. Security in the mobile ad hoc network is a very critical job and requires the consideration of different security issues on all the layers of communication. The countermeasures are the functions that reduce or eliminate security vulnerabilities and attacks. This chapter provides a comprehensive study of all prominent attacks in Mobile Ad Hoc Networks described in the literature. It also provides various proactive and reactive approaches proposed to secure the MANETs. Moreover, it also points to areas of research that need to be investigated in the future.

Analysis of Vulnerabilities in IoT and Its Solutions

2021 ◽  
pp. 157-177
Author(s):  
Puspanjali Mallik
Keyword(s):  
Security And Privacy ◽  
Heterogeneous Structure ◽  
Privacy Concern ◽  
Security Vulnerabilities ◽  
Smart Vehicles ◽  
Security Issues ◽  
Smart Healthcare ◽  
Wide Range ◽  
Main Motive ◽  
Iot Devices

The internet of things (IoT) fulfils abundant demands of present society by facilitating the services of cutting-edge technology in terms of smart home, smart healthcare, smart city, smart vehicles, and many more, which enables present day objects in our environment to have network communication and the capability to exchange data. These wide range of applications are collected, computed, and provided by thousands of IoT elements placed in open spaces. The highly interconnected heterogeneous structure faces new types of challenges from a security and privacy concern. Previously, security platforms were not so capable of handling these complex platforms due to different communication stacks and protocols. It seems to be of the utmost importance to keep concern about security issues relating to several attacks and vulnerabilities. The main motive of this chapter is to analyze the broad overview of security vulnerabilities and its counteractions. Generally, it discusses the major security techniques and protocols adopted by the IoT and analyzes the attacks against IoT devices.

Simulation of Power Line Communication Using OPNET for Vertical Fish Farm

2018 ◽  
pp. 139-164
Keyword(s):  
Efficient Algorithm ◽  
Large Scale ◽  
Network Simulation ◽  
Power Line ◽  
Fish Farm ◽  
Simulation Tool ◽  
Test Bed ◽  
Simulation Test ◽  
Large Scale System ◽  
Large Scale Simulations

OPNET is a network simulation tool which can simulate various elements in a network. It is able to analyze traffics and even can simulate security events recently. System designers can identify vulnerabilities or find an efficient algorithm/protocol that could reduce costs if simulations are performed prior to actual implementation/construction of a large-scale system. Thus, this chapter includes the method of simulating a PLC-system, designing a PLC-based vertical fish farm and an expandable simulation test bed with which students or researchers will be able simulate their implementation methods. With these methods, it will be possible to perform large-scale simulations.

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