71 research outputs found

    Instant:A TSCH Schedule for Data Collection from Mobile Nodes

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    Demystifying Internet of Things Security

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    Break down the misconceptions of the Internet of Things by examining the different security building blocks available in Intel Architecture (IA) based IoT platforms. This open access book reviews the threat pyramid, secure boot, chain of trust, and the SW stack leading up to defense-in-depth. The IoT presents unique challenges in implementing security and Intel has both CPU and Isolated Security Engine capabilities to simplify it. This book explores the challenges to secure these devices to make them immune to different threats originating from within and outside the network. The requirements and robustness rules to protect the assets vary greatly and there is no single blanket solution approach to implement security. Demystifying Internet of Things Security provides clarity to industry professionals and provides and overview of different security solutions What You'll Learn Secure devices, immunizing them against different threats originating from inside and outside the network Gather an overview of the different security building blocks available in Intel Architecture (IA) based IoT platforms Understand the threat pyramid, secure boot, chain of trust, and the software stack leading up to defense-in-depth Who This Book Is For Strategists, developers, architects, and managers in the embedded and Internet of Things (IoT) space trying to understand and implement the security in the IoT devices/platforms

    Analysis of mobility support approaches for edge-based IoT systems using high data rate Bluetooth Low Energy 5

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    In remote monitoring edge-based IoT applications, high latency caused by the mobility of a sensor device can cause serious consequences such as inaccurate analysis and low quality of services. Therefore, it is required to have mobility support approaches that help reduce latency while maintaining a connection, high quality of service, and energy efficiency. However, the number of mobility support approaches for high data rate IoT applications using Bluetooth Low Energy (BLE) is limited and they have some disadvantages. For example. they have not been designed for edge-based applications where local computation occurs frequently. Many of them have not been implemented and tested in daily working environments with actual mobility cases. They have not comprehensively analyzed the mobility latency and energy consumption of sensor devices. Hence, this paper presents three possible mobility support approaches including passive and active handover mechanisms for edge-based IoT applications using high data rate BLE5. These approaches based on passive and active handover mechanisms are implemented and tested in an office environment. The results of latency and power consumption of a sensor device via many experiments are measured and analyzed. The results show that the presented mobility support approaches maintain the connection during mobility with a latency of around 900ms for many cases. The results also show that using BLE5’s LE 2M physical layer consumes less power than using LE 1M physical layer. Specifically, it can reduce energy consumption when sending or receiving larger data sizes at faster rates.</div

    Survey Paper Artificial and Computational Intelligence in the Internet of Things and Wireless Sensor Network

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    In this modern age, Internet of Things (IoT) and Wireless Sensor Network (WSN) as its derivatives have become one of the most popular and important technological advancements. In IoT, all things and services in the real world are digitalized and it continues to grow exponentially every year. This growth in number of IoT device in the end has created a tremendous amount of data and new data services such as big data systems. These new technologies can be managed to produce additional value to the existing business model. It also can provide a forecasting service and is capable to produce decision-making support using computational intelligence methods. In this survey paper, we provide detailed research activities concerning Computational Intelligence methods application in IoT WSN. To build a good understanding, in this paper we also present various challenges and issues for Computational Intelligence in IoT WSN. In the last presentation, we discuss the future direction of Computational Intelligence applications in IoT WSN such as Self-Organizing Network (dynamic network) concept

    Novel architectures and strategies for security offloading

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    Internet has become an indispensable and powerful tool in our modern society. Its ubiquitousness, pervasiveness and applicability have fostered paradigm changes around many aspects of our lives. This phenomena has positioned the network and its services as fundamental assets over which we rely and trust. However, Internet is far from being perfect. It has considerable security issues and vulnerabilities that jeopardize its main core functionalities with negative impact over its players. Furthermore, these vulnerabilities¿ complexities have been amplified along with the evolution of Internet user mobility. In general, Internet security includes both security for the correct network operation and security for the network users and endpoint devices. The former involves the challenges around the Internet core control and management vulnerabilities, while the latter encompasses security vulnerabilities over end users and endpoint devices. Similarly, Internet mobility poses major security challenges ranging from routing complications, connectivity disruptions and lack of global authentication and authorization. The purpose of this thesis is to present the design of novel architectures and strategies for improving Internet security in a non-disruptive manner. Our novel security proposals follow a protection offloading approach. The motives behind this paradigm target the further enhancement of the security protection while minimizing the intrusiveness and disturbance over the Internet routing protocols, its players and users. To accomplish such level of transparency, the envisioned solutions leverage on well-known technologies, namely, Software Defined Networks, Network Function Virtualization and Fog Computing. From the Internet core building blocks, we focus on the vulnerabilities of two key routing protocols that play a fundamental role in the present and the future of the Internet, i.e., the Border Gateway Protocol (BGP) and the Locator-Identifier Split Protocol (LISP). To this purpose, we first investigate current BGP vulnerabilities and countermeasures with emphasis in an unresolved security issue defined as Route Leaks. Therein, we discuss the reasons why different BGP security proposals have failed to be adopted, and the necessity to propose innovative solutions that minimize the impact over the already deployed routing solution. To this end, we propose pragmatic security methodologies to offload the protection with the following advantages: no changes to the BGP protocol, neither dependency on third party information nor on third party security infrastructure, and self-beneficial. Similarly, we research the current LISP vulnerabilities with emphasis on its control plane and mobility support. We leverage its by-design separation of control and data planes to propose an enhanced location-identifier registration process of end point identifiers. This proposal improves the mobility of end users with regards on securing a dynamic traffic steering over the Internet. On the other hand, from the end user and devices perspective we research new paradigms and architectures with the aim of enhancing their protection in a more controllable and consolidated manner. To this end, we propose a new paradigm which shifts the device-centric protection paradigm toward a user-centric protection. Our proposal focus on the decoupling or extending of the security protection from the end devices toward the network edge. It seeks the homogenization of the enforced protection per user independently of the device utilized. We further investigate this paradigm in a mobility user scenario. Similarly, we extend this proposed paradigm to the IoT realm and its intrinsic security challenges. Therein, we propose an alternative to protect both the things, and the services that leverage from them by consolidating the security at the network edge. We validate our proposal by providing experimental results from prof-of-concepts implementations.Internet se ha convertido en una poderosa e indispensable herramienta para nuestra sociedad moderna. Su omnipresencia y aplicabilidad han promovido grandes cambios en diferentes aspectos de nuestras vidas. Este fenómeno ha posicionado a la red y sus servicios como activos fundamentales sobre los que contamos y confiamos. Sin embargo, Internet está lejos de ser perfecto. Tiene considerables problemas de seguridad y vulnerabilidades que ponen en peligro sus principales funcionalidades. Además, las complejidades de estas vulnerabilidades se han ampliado junto con la evolución de la movilidad de usuarios de Internet y su limitado soporte. La seguridad de Internet incluye tanto la seguridad para el correcto funcionamiento de la red como la seguridad para los usuarios y sus dispositivos. El primero implica los desafíos relacionados con las vulnerabilidades de control y gestión de la infraestructura central de Internet, mientras que el segundo abarca las vulnerabilidades de seguridad sobre los usuarios finales y sus dispositivos. Del mismo modo, la movilidad en Internet plantea importantes desafíos de seguridad que van desde las complicaciones de enrutamiento, interrupciones de la conectividad y falta de autenticación y autorización globales. El propósito de esta tesis es presentar el diseño de nuevas arquitecturas y estrategias para mejorar la seguridad de Internet de una manera no perturbadora. Nuestras propuestas de seguridad siguen un enfoque de desacople de la protección. Los motivos detrás de este paradigma apuntan a la mejora adicional de la seguridad mientras que minimizan la intrusividad y la perturbación sobre los protocolos de enrutamiento de Internet, sus actores y usuarios. Para lograr este nivel de transparencia, las soluciones previstas aprovechan nuevas tecnologías, como redes definidas por software (SDN), virtualización de funciones de red (VNF) y computación en niebla. Desde la perspectiva central de Internet, nos centramos en las vulnerabilidades de dos protocolos de enrutamiento clave que desempeñan un papel fundamental en el presente y el futuro de Internet, el Protocolo de Puerta de Enlace Fronterizo (BGP) y el Protocolo de Separación Identificador/Localizador (LISP ). Para ello, primero investigamos las vulnerabilidades y medidas para contrarrestar un problema no resuelto en BGP definido como Route Leaks. Proponemos metodologías pragmáticas de seguridad para desacoplar la protección con las siguientes ventajas: no cambios en el protocolo BGP, cero dependencia en la información de terceros, ni de infraestructura de seguridad de terceros, y de beneficio propio. Del mismo modo, investigamos las vulnerabilidades actuales sobre LISP con énfasis en su plano de control y soporte de movilidad. Aprovechamos la separacçón de sus planos de control y de datos para proponer un proceso mejorado de registro de identificadores de ubicación y punto final, validando de forma segura sus respectivas autorizaciones. Esta propuesta mejora la movilidad de los usuarios finales con respecto a segurar un enrutamiento dinámico del tráfico a través de Internet. En paralelo, desde el punto de vista de usuarios finales y dispositivos investigamos nuevos paradigmas y arquitecturas con el objetivo de mejorar su protección de forma controlable y consolidada. Con este fin, proponemos un nuevo paradigma hacia una protección centrada en el usuario. Nuestra propuesta se centra en el desacoplamiento o ampliación de la protección de seguridad de los dispositivos finales hacia el borde de la red. La misma busca la homogeneización de la protección del usuario independientemente del dispositivo utilizado. Además, investigamos este paradigma en un escenario con movilidad. Validamos nuestra propuesta proporcionando resultados experimentales obtenidos de diferentes experimentos y pruebas de concepto implementados

    Novel architectures and strategies for security offloading

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    Internet has become an indispensable and powerful tool in our modern society. Its ubiquitousness, pervasiveness and applicability have fostered paradigm changes around many aspects of our lives. This phenomena has positioned the network and its services as fundamental assets over which we rely and trust. However, Internet is far from being perfect. It has considerable security issues and vulnerabilities that jeopardize its main core functionalities with negative impact over its players. Furthermore, these vulnerabilities¿ complexities have been amplified along with the evolution of Internet user mobility. In general, Internet security includes both security for the correct network operation and security for the network users and endpoint devices. The former involves the challenges around the Internet core control and management vulnerabilities, while the latter encompasses security vulnerabilities over end users and endpoint devices. Similarly, Internet mobility poses major security challenges ranging from routing complications, connectivity disruptions and lack of global authentication and authorization. The purpose of this thesis is to present the design of novel architectures and strategies for improving Internet security in a non-disruptive manner. Our novel security proposals follow a protection offloading approach. The motives behind this paradigm target the further enhancement of the security protection while minimizing the intrusiveness and disturbance over the Internet routing protocols, its players and users. To accomplish such level of transparency, the envisioned solutions leverage on well-known technologies, namely, Software Defined Networks, Network Function Virtualization and Fog Computing. From the Internet core building blocks, we focus on the vulnerabilities of two key routing protocols that play a fundamental role in the present and the future of the Internet, i.e., the Border Gateway Protocol (BGP) and the Locator-Identifier Split Protocol (LISP). To this purpose, we first investigate current BGP vulnerabilities and countermeasures with emphasis in an unresolved security issue defined as Route Leaks. Therein, we discuss the reasons why different BGP security proposals have failed to be adopted, and the necessity to propose innovative solutions that minimize the impact over the already deployed routing solution. To this end, we propose pragmatic security methodologies to offload the protection with the following advantages: no changes to the BGP protocol, neither dependency on third party information nor on third party security infrastructure, and self-beneficial. Similarly, we research the current LISP vulnerabilities with emphasis on its control plane and mobility support. We leverage its by-design separation of control and data planes to propose an enhanced location-identifier registration process of end point identifiers. This proposal improves the mobility of end users with regards on securing a dynamic traffic steering over the Internet. On the other hand, from the end user and devices perspective we research new paradigms and architectures with the aim of enhancing their protection in a more controllable and consolidated manner. To this end, we propose a new paradigm which shifts the device-centric protection paradigm toward a user-centric protection. Our proposal focus on the decoupling or extending of the security protection from the end devices toward the network edge. It seeks the homogenization of the enforced protection per user independently of the device utilized. We further investigate this paradigm in a mobility user scenario. Similarly, we extend this proposed paradigm to the IoT realm and its intrinsic security challenges. Therein, we propose an alternative to protect both the things, and the services that leverage from them by consolidating the security at the network edge. We validate our proposal by providing experimental results from prof-of-concepts implementations.Internet se ha convertido en una poderosa e indispensable herramienta para nuestra sociedad moderna. Su omnipresencia y aplicabilidad han promovido grandes cambios en diferentes aspectos de nuestras vidas. Este fenómeno ha posicionado a la red y sus servicios como activos fundamentales sobre los que contamos y confiamos. Sin embargo, Internet está lejos de ser perfecto. Tiene considerables problemas de seguridad y vulnerabilidades que ponen en peligro sus principales funcionalidades. Además, las complejidades de estas vulnerabilidades se han ampliado junto con la evolución de la movilidad de usuarios de Internet y su limitado soporte. La seguridad de Internet incluye tanto la seguridad para el correcto funcionamiento de la red como la seguridad para los usuarios y sus dispositivos. El primero implica los desafíos relacionados con las vulnerabilidades de control y gestión de la infraestructura central de Internet, mientras que el segundo abarca las vulnerabilidades de seguridad sobre los usuarios finales y sus dispositivos. Del mismo modo, la movilidad en Internet plantea importantes desafíos de seguridad que van desde las complicaciones de enrutamiento, interrupciones de la conectividad y falta de autenticación y autorización globales. El propósito de esta tesis es presentar el diseño de nuevas arquitecturas y estrategias para mejorar la seguridad de Internet de una manera no perturbadora. Nuestras propuestas de seguridad siguen un enfoque de desacople de la protección. Los motivos detrás de este paradigma apuntan a la mejora adicional de la seguridad mientras que minimizan la intrusividad y la perturbación sobre los protocolos de enrutamiento de Internet, sus actores y usuarios. Para lograr este nivel de transparencia, las soluciones previstas aprovechan nuevas tecnologías, como redes definidas por software (SDN), virtualización de funciones de red (VNF) y computación en niebla. Desde la perspectiva central de Internet, nos centramos en las vulnerabilidades de dos protocolos de enrutamiento clave que desempeñan un papel fundamental en el presente y el futuro de Internet, el Protocolo de Puerta de Enlace Fronterizo (BGP) y el Protocolo de Separación Identificador/Localizador (LISP ). Para ello, primero investigamos las vulnerabilidades y medidas para contrarrestar un problema no resuelto en BGP definido como Route Leaks. Proponemos metodologías pragmáticas de seguridad para desacoplar la protección con las siguientes ventajas: no cambios en el protocolo BGP, cero dependencia en la información de terceros, ni de infraestructura de seguridad de terceros, y de beneficio propio. Del mismo modo, investigamos las vulnerabilidades actuales sobre LISP con énfasis en su plano de control y soporte de movilidad. Aprovechamos la separacçón de sus planos de control y de datos para proponer un proceso mejorado de registro de identificadores de ubicación y punto final, validando de forma segura sus respectivas autorizaciones. Esta propuesta mejora la movilidad de los usuarios finales con respecto a segurar un enrutamiento dinámico del tráfico a través de Internet. En paralelo, desde el punto de vista de usuarios finales y dispositivos investigamos nuevos paradigmas y arquitecturas con el objetivo de mejorar su protección de forma controlable y consolidada. Con este fin, proponemos un nuevo paradigma hacia una protección centrada en el usuario. Nuestra propuesta se centra en el desacoplamiento o ampliación de la protección de seguridad de los dispositivos finales hacia el borde de la red. La misma busca la homogeneización de la protección del usuario independientemente del dispositivo utilizado. Además, investigamos este paradigma en un escenario con movilidad. Validamos nuestra propuesta proporcionando resultados experimentales obtenidos de diferentes experimentos y pruebas de concepto implementados.Postprint (published version

    Energy-efficient Transitional Near-* Computing

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    Studies have shown that communication networks, devices accessing the Internet, and data centers account for 4.6% of the worldwide electricity consumption. Although data centers, core network equipment, and mobile devices are getting more energy-efficient, the amount of data that is being processed, transferred, and stored is vastly increasing. Recent computer paradigms, such as fog and edge computing, try to improve this situation by processing data near the user, the network, the devices, and the data itself. In this thesis, these trends are summarized under the new term near-* or near-everything computing. Furthermore, a novel paradigm designed to increase the energy efficiency of near-* computing is proposed: transitional computing. It transfers multi-mechanism transitions, a recently developed paradigm for a highly adaptable future Internet, from the field of communication systems to computing systems. Moreover, three types of novel transitions are introduced to achieve gains in energy efficiency in near-* environments, spanning from private Infrastructure-as-a-Service (IaaS) clouds, Software-defined Wireless Networks (SDWNs) at the edge of the network, Disruption-Tolerant Information-Centric Networks (DTN-ICNs) involving mobile devices, sensors, edge devices as well as programmable components on a mobile System-on-a-Chip (SoC). Finally, the novel idea of transitional near-* computing for emergency response applications is presented to assist rescuers and affected persons during an emergency event or a disaster, although connections to cloud services and social networks might be disturbed by network outages, and network bandwidth and battery power of mobile devices might be limited

    Internet of Things From Hype to Reality

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    The Internet of Things (IoT) has gained significant mindshare, let alone attention, in academia and the industry especially over the past few years. The reasons behind this interest are the potential capabilities that IoT promises to offer. On the personal level, it paints a picture of a future world where all the things in our ambient environment are connected to the Internet and seamlessly communicate with each other to operate intelligently. The ultimate goal is to enable objects around us to efficiently sense our surroundings, inexpensively communicate, and ultimately create a better environment for us: one where everyday objects act based on what we need and like without explicit instructions

    Exploring New Paradigms for Mobile Edge Computing

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    Edge computing has been rapidly growing in recent years to meet the surging demands from mobile apps and Internet of Things (IoT). Similar to the Cloud, edge computing provides computation, storage, data, and application services to the end-users. However, edge computing is usually deployed at the edge of the network, which can provide low-latency and high-bandwidth services for end devices. So far, edge computing is still not widely adopted. One significant challenge is that the edge computing environment is usually heterogeneous, involving various operating systems and platforms, which complicates app development and maintenance. in this dissertation, we explore to combine edge computing with virtualization techniques to provide a homogeneous environment, where edge nodes and end devices run exactly the same operating system. We develop three systems based on the homogeneous edge computing environment to improve the security and usability of end-device applications. First, we introduce vTrust, a new mobile Trusted Execution Environment (TEE), which offloads the general execution and storage of a mobile app to a nearby edge node and secures the I/O between the edge node and the mobile device with the aid of a trusted hypervisor on the mobile device. Specifically, vTrust establishes an encrypted I/O channel between the local hypervisor and the edge node, such that any sensitive data flowing through the hosted mobile OS is encrypted. Second, we present MobiPlay, a record-and-replay tool for mobile app testing. By collaborating a mobile phone with an edge node, MobiPlay can effectively record and replay all types of input data on the mobile phone without modifying the mobile operating system. to do so, MobiPlay runs the to-be-tested application on the edge node under exactly the same environment as the mobile device and allows the tester to operate the application on a mobile device. Last, we propose vRent, a new mechanism to leverage smartphone resources as edge node based on Xen virtualization and MiniOS. vRent aims to mitigate the shortage of available edge nodes. vRent enforces isolation and security by making the users\u27 android OSes as Guest OSes and rents the resources to a third-party in the form of MiniOSes
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