1,721,814 research outputs found
Thwarting Afghanistanś insurgency . a pragmatic approach toward peace and reconciliation
No full textMohammad Masoom Stanekza
Remote Attestation for Secure Internet of Things
Full text linkThe Internet of things (IoT) are increasingly exposed to a wide range of security threats. Despite the enormous opportunities that IoT world offers, IoT devices are prone to many cyberattacks. One effective security mechanism to identify malicious entities in an IoT system is Remote Attestation. Remote Attestation is an interactive protocol that allows a remote trusted Verifier to assess the integrity of an untrusted device by typically checking whether the received measurement conforms to an expected legitimate configuration. In this thesis, we provide a four-fold contribution, (1) we review working mechanisms of state-of-the-art Collective Remote Attestation (CRA) techniques 2) we address the problem of device mobility during attestation and asynchronous attestation of IoT services, (3) we propose a novel configurable-hardware enabled remote attestation techniques for low-end embedded devices, and, (4) we show how remote attestation can be employed to provide security and safe operation to other traditional applications
Attestation-enabled Secure and Scalable Routing protocol for IoT Networks
No full textCybercrime in the past decade has experienced an all-time high due to the inclusion of so-called smart devices in our daily lives. These tiny devices with brittle security features are often dubbed as the Internet of Things (IoT). Their inclusion is not only limited to our daily lives but also in different fields, for example, healthcare, smart-industries, aviation, and smart-cities. Although IoT devices make our lives easy and perform our jobs in a smart way, but their fragile security mechanisms pose a severe challenge regarding safety and privacy of its users. Attacks like Stuxnet, and Mirai-botnet are the key examples of the damages that can be caused by maliciously controlling these devices. One effective tool to identify a malicious entity at a network device is to perform Remote Attestation (RA). However, performing RA over a large, heterogeneous IoT network is difficult tasks due to resource constrain nature of these networks. To this end, we propose a novel scheme called SARP, which is an attestation-assisted secure and scalable routing protocol for IoT networks. SARP performs attestation in large scale IoT networks by using Routing Protocol for Low Power and Lossy Networks (RPL) framework and exploiting the inbuilt features of RPL. In particular, SARP uses attestation technique that not only secures the network from internal attacks, but it also provides security to RPL’s data communication process, which helps to improve the overall network performance. Moreover, SARP supports network mobility, device heterogeneity, and network scalability, while it does not sacrifice the key requirements of IoT networks such as low energy and memory consumption, and low network overhead. The simulation results obtained in different IoT scenarios in presence of various types of attacks show the effectiveness of SARP, concerning energy consumption, packet delivery ratio, network overhead, data integrity, and communication security
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Rediscovering Rahi: Language-Identity Mix in Rahi Masoom Raza's Fiction
No full textRahi Masoom Raza is one of those rare breeds of Indian writers who advocated Hindustani, over and above Hindi or Urdu. For Rahi, the language of people is the one that they speak in their homes, with their souls and soul-mates, in which they express their dreams, desires, pleasures and grief, and not the one which ideally they should be speaking. From Rahi's fiction, we gather how those ideals are politically, religiously and racially manufactured and how characters, becoming a mouthpiece of Rahi, belittle those ideals with their brazen frankness. From the critically-acclaimed Adha Gaon (1966) to lesser known works like Os ki Boond (1970), Rahi's advocacy for home-spoken dialect over and above the nationalized Hindi or Urdu comes to the fore
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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