985 resultados para Coefficient of Information Security


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In settings such as electronic markets where trading partners have conflicting interests and a desire to cooperate, mobile agent mediated negotiation have become very popular. However, agent-based negotiation in electronic commerce involves the exchange of critical and sensitive data that must be highly safeguarded. Therefore, in order to give benefits of quick and safe trading to the trading partners, an approach that secures the information exchanged between the mobile agents during e-Commerce negotiations is needed. To this end, we discuss an approach that we refer to as Multi-Agent Security NEgotiation Protocol (MASNEP). To show that MASNEP protocol is free of attacks and thus the information exchanged throughout electronic negotiation is truly secured, we provide a formal proof on the correctness of the MASNEP.

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Organisations have become increasingly dependent on technology in order to compete in their respective markets. As IT technology advances at a rapid pace, so does its complexity, giving rise to new IT security vulnerabilities and methods of attack. Even though the human factors have been recognized to have a crucial role in information security management, the effects of weakness of will and lack of commitment on the stakeholders (i.e., employers and employees) parts has never been factored into the design and delivery of awareness programs. To this end, this paper investigates the impacts of the availability of awareness programs and end-user drive and lack of commitment to information security awareness program design, delivery and success.

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Many organizations still rely on deterrence to control insider threats and on purely preventive strategies to control outsider threats. Such a simple approach to organizational information security is no longer viable given the increasing operational sophistication of current security threat agents and the complexity of information technology infrastructure. Effective implementation of security requires organizations to select a combination of strategies that work in tandem and best suits their security situation. This paper addresses the identification and classification of factors that influence implementation of security strategies in organizations. In this paper, we develop a preliminary architecture that aims to assist organizations in deciding how strategies can be designed to complement each other to improve the cost-effectiveness of security.

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This article presents experimental results devoted to a new application of the novel clustering technique introduced by the authors recently. Our aim is to facilitate the application of robust and stable consensus functions in information security, where it is often necessary to process large data sets and monitor outcomes in real time, as it is required, for example, for intrusion detection. Here we concentrate on the particular case of application to profiling of phishing websites. First, we apply several independent clustering algorithms to a randomized sample of data to obtain independent initial clusterings. Silhouette index is used to determine the number of clusters. Second, we use a consensus function to combine these independent clusterings into one consensus clustering . Feature ranking is used to select a subset of features for the consensus function. Third, we train fast supervised classification algorithms on the resulting consensus clustering in order to enable them to process the whole large data set as well as new data. The precision and recall of classifiers at the final stage of this scheme are critical for effectiveness of the whole procedure. We investigated various combinations of three consensus functions, Cluster-Based Graph Formulation (CBGF), Hybrid Bipartite Graph Formulation (HBGF), and Instance-Based Graph Formulation (IBGF) and a variety of supervised classification algorithms. The best precision and recall have been obtained by the combination of the HBGF consensus function and the SMO classifier with the polynomial kernel.

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Detecting malicious software or malware is one of the major concerns in information security governance as malware authors pose a major challenge to digital forensics by using a variety of highly sophisticated stealth techniques to hide malicious code in computing systems, including smartphones. The current detection techniques are futile, as forensic analysis of infected devices is unable to identify all the hidden malware, thereby resulting in zero day attacks. This chapter takes a key step forward to address this issue and lays foundation for deeper investigations in digital forensics. The goal of this chapter is, firstly, to unearth the recent obfuscation strategies employed to hide malware. Secondly, this chapter proposes innovative techniques that are implemented as a fully-automated tool, and experimentally tested to exhaustively detect hidden malware that leverage on system vulnerabilities. Based on these research investigations, the chapter also arrives at an information security governance plan that would aid in addressing the current and future cybercrime situations.

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Possibilities for investigations of 43 varieties of file formats (objects), joined in 10 groups; 89 information attacks, joined in 33 groups and 73 methods of compression, joined in 10 groups are described in the paper. Experimental, expert, possible and real relations between attacks’ groups, method’ groups and objects’ groups are determined by means of matrix transformations and the respective maximum and potential sets are defined. At the end assessments and conclusions for future investigation are proposed.

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A szerzők tanulmányukban az információbiztonság egy merőben új, minőségi változást hozó találmányával, a kvantumkulcscserével (QKD-vel – quantum key distribution) foglalkoznak. Céljuk az, hogy az újdonságra mint informatikai biztonsági termékre tekintsenek, és megvizsgálják a bevezetéséről szóló vállalati döntés során felmerülő érveket, ellenérveket. Munkájuk egyaránt műszaki és üzleti szemléletű. Előbb elkülönítik a kvantumkulcscsere hagyományos eljárásokkal szembeni használatának motiváló tényezőit, és megállapítják, milyen körülmények között szükséges a napi működésben alkalmazni. Ezt követően a forgalomban is kapható QKD-termékek tulajdonságait és gyártóit szemügyre véve megfogalmazzák a termék széles körű elterjedésének korlátait. Végül a kvantumkulcscsere-termék bevezetéséről szóló vállalati döntéshozás különböző aspektusait tekintik át. Információbiztonsági és üzleti szempontból összehasonlítják az új, valamint a hagyományosan használt kulcscsereeszközöket. Javaslatot tesznek a védendő információ értékének becslésére, amely a használatbavétel költség-haszon elemzését támaszthatja alá. Ebből levezetve megállapítják, hogy mely szervezetek alkotják a QKD lehetséges célcsoportját. Utolsó lépésként pedig arra keresik a választ, melyik időpont lehet ideális a termék bevezetésére. _____ This study aims to illuminate Quantum Key Distribution (QKD), a new invention that has the potential to bring sweeping changes to information security. The authors’ goal is to present QKD as a product in the field of IT security, and to examine several pro and con arguments regarding the installation of this product. Their work demonstrates both the technical and the business perspectives of applying QKD. First they identify motivational factors of using Quantum Key Distribution over traditional methods. Then the authors assess under which circumstances QKD could be necessary to be used in daily business. Furthermore, to evaluate the limitations of its broad spread, they introduce the vendors and explore the properties of their commercially available QKD products. Bearing all this in mind, they come out with numerous factors that can influence corporate decision making regarding the installation of QKD. The authors compare the traditional and the new tools of key distribution from an IT security and business perspective. They also take efforts to estimate the value of the pieces of information to be protected. This could be useful for a subsequent cost–benefit analysis. Their findings try to provide support for determining the target audience of QKD in the IT security market. Finally the authors attempt to find an ideal moment for an organization to invest in Quantum Key Distribution.