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In this paper, we review the main middleware re-quirements applied to Internet of Things and High-Performance Computing combined, here called IoT/HPC. The goal was to describe a unique set of requirements that middleware systems should attempt to guarantee the development of integrated applications. Among many core complex services, the IoT/HPC challenges are related to the support of sensing, actuating,...
A major limitation of mobile Crowd Sourcing (CS) applications is the generation of false (or spam) contributions due to selfish and malicious behaviors of users, or wrong perception of an event. Such false contributions induce loss of revenue through disbursement of undue incentives and also negatively affects the application's operational reliability. In this work, we propose a reputation model,...
Stackelberg security games are represented by a Stackelberg model for multiple defenders and attackers. The dynamics of the game involves defenders trying to allocate their limited resources to defend important targets, and attackers observing the behavior of the defenders, look for the most advantageous target to harm. The computation of the equilibrium point is a fundamental issue for Stackelberg...
Architecture models mainly have three functions; 1) document, 2) analyze, and 3) improve the system under consideration. All three functions have suffered from being timeconsuming and expensive, mainly due to being manual processes in need of hard to find expertise. Recent work has however automated both the data collection and the analysis. In order for enterprise architecture modeling to finally...
Cyber attacks are a critical threat to government infrastructure, commercial enterprises and personal devices. When belligerents attack cyber systems, they need to spread laterally to reach high value targets and communicate with their command and control sites. Intuitively, a layered defense including intrusion detection systems will limit the adversary's exploitation of the target. We apply lessons...
The panic among medical control, information, and device administrators is due to surmounting number of high-profile attacks on healthcare facilities. This hostile situation is going to lead the health informatics industry to cloud-hoarding of medical data, control flows, and site governance. While different healthcare enterprises opt for cloud-based solutions, it is a matter of time when fog computing...
Security is a major challenge in Cloud Computing. Attacks exploiting resource virtualization vulnerabilities such as cross-VM side-channel, VM escape, and VM hopping constitute significant threats. Hosted VMs may act as a potential attack-source against neighboring VMs or cloud infrastructure. Inspired by the sea-chameleons camouflaging process to evade predators, in this paper we propose an Online...
Internet of Things (IoT) is characterized by heterogeneous devices that interact with each other on a collaborative basis to fulfill a common goal. In this scenario, some of the deployed devices are expected to be constrained in terms of memory usage, power consumption and processing resources. To address the specific properties and constraints of such networks, a complete stack of standardized protocols...
With the growing adoption of cloud computing for business systems, the efforts to keep those environments secure are also increasing. Virtualization infrastructures are key to support such systems, but engineers lack means to help them in selecting the best solutions according to their security requirements. The goal of this work is to define and develop a benchmarking approach to assess and compare...
Despite the considerable benefits of cloud computing as an emerging technology, there are some reliability and privacy concerns such as generating and managing access policies according to sensitivity of stored data in cloud storages. The most challenging issue in current information policy models is managing security levels, mapping between access requests and defined policies and considering the...
In today's cloud centred business environment, security of cloud solutions is a critical issue. Since virtualization is the foundational element of cloud computing and helps to achieve the benefits of cloud computing, security from virtualization becomes a major goal for the cloud based systems. Virtualization aims to create virtual versions of resources such as processors, memory, storage, network...
Security challenges in cloud environments remain largely catastrophic due to the nature of the cloud; complex, heterogeneous, widely accessible over the internet, and virtualised resource sharing. Static and boundary-based conventional security approaches are clearly not effective as the sole countermeasures. Instead, countermeasures need to be intelligent with a high degree of autonomous, self-managing...
In 2013, Tams et al. proposed a method to determine directed reference points in fingerprints based on a mathematical model of typical orientation fields of tented arch type fingerprints. Although this Tented Arch Reference Point (TARP) method has been used successfully for pre-alignment in biometric cryptosystems, its accuracy does not yet ensure satisfactory error rates for single finger systems...
To overcome the current cybersecurity challenges of protecting our cyberspace and applications, we present an innovative cloud-based architecture to offer resilient Dynamic Data Driven Application Systems (DDDAS) as a cloud service that we refer to as resilient DDDAS as a Service (rDaaS). This architecture integrates Service Oriented Architecture (SOA) and DDDAS paradigms to offer the next generation...
Cloud services have gained tremendous attentionas a utility paradigm and have been deployed extensively across awide range of fields. However, Cloud security is not catching upto the fast adoption of its services and remains one of the biggestchallenges for Cloud Service Providers (CSPs) and Cloud ServiceConsumers (CSCs) from the industry, government, andacademia. These institutions are increasingly...
Applications in computer network security, social media analysis, and other areas rely on analyzing a changing environment. The data is rich in relationships and lends itself to graph analysis. Traditional static graph analysis cannot keep pace with network security applications analyzing nearly one million events per second and social networks like Facebook collecting 500 thousand comments per second...
The IoT (Internet of Things) is one of the primary reasons for the massive growth in the number of connected devices to the Internet, thus leading to an increased volume of traffic in the core network. Fog and edge computing are becoming a solution to handle IoT traffic by moving timesensitive processing to the edge of the network, while using the conventional cloud for historical analysis and long-term...
Cloud computing is a solution to reduce the cost of IT by providing elastic access to shared resources. It also provides solutions for on-demand computing power and storage for devices at the edge networks with limited resources. However, increasing the number of connected devices caused by IoT architecture leads to higher network traffic and delay for cloud computing. The centralised architecture...
Advancement in digitization gave rise to a new paradigm of communication, called Internet of Things (IoT), where various heterogeneous physical objects (IoT devices) with embedded intelligence can provide or receive services from each other seamlessly. One concerned issue is to maintain reliability in the system with these heterogeneous devices for effective utilization of services. Trust and Reputation...
Syndrome coding is a very classical coding scheme in Physical layer security. It is necessary to design a efficient and secure code for syndrome coding to guarantee the security of the instant communications. In this paper, we apply two ways to construct random codes. By analysing on the effect of the parity check matrix on the average equivocation, we propose a method to generate the best random...
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