21 research outputs found

    Providing Login and Wi-Fi Access Services With the eIDAS Network: A Practical Approach

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    The digital identity (or electronic identity) of a person is about being able to prove upon authentication who one is on the Internet, with a certain level of assurance, such as by means of some attributes obtained from a trustworthy Identity Provider. In Europe, the eIDAS Network allows the citizens to authenticate securely with their national credentials and to provide such personal attributes when getting access to Service Providers in a different European country. Although the eIDAS Network is more and more known, its integration with real operational services is still at an initial phase. This paper presents two eIDAS-enabled services, Login with eIDAS and Wi-Fi access with eIDAS , that we have designed, implemented, deployed, and validated at the Politecnico di Torino in Italy. The validation study involved several undergraduate students, who have run the above services with their authentication credentials and platforms and with minimal indications on their usage. The results indicate that the services were beneficial. Several advantages exist both for the users and for the Service Providers, such as resistance to some security attacks and the possibility to adopt the service without prior user registration ( e.g. for short meetings, or in public places). However, some students expressed doubts about exploiting their national eID for Wi-Fi access, mainly in connection with usability and privacy issues. We discuss also these concerns, along with advantages and disadvantages of the proposed services

    Supporting authorize-then-authenticate for wi-fi access based on an electronic identity infrastructure

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    Federated electronic identity systems are increasingly used in commercial and public services to let users share their electronic identities (eIDs) across countries and providers. In Europe, the eIDAS Regulation and its implementation-the eIDAS Network-allowing mutual recognition of citizen’s eIDs in various countries, is now in action. We discuss authorization (before authentication), named also authorize-then-authenticate (AtA), in services exploiting the eIDAS Network. In the eIDAS Network, each European country runs a national eIDAS Node, which transfers in other Member State countries, via the eIDAS protocol, some personal attributes, upon successful authentication of a person in his home country. Service Providers in foreign countries typically use these attributes to implement authorization decisions for the requested service. We present a scenario where AtA is required, namely Wi-Fi access, in which the service provider has to implement access control decisions before the person is authenticated through the eIDAS Network with his/her national eID. The Wi-Fi access service is highly required in public and private places (e.g. shops, hotels, a.s.o.), but its use typically involves users’ registration at service providers and is still subject to security attacks. The eIDAS Network supports different authentication assurance levels, thus it might be exploited for a more secure and widely available Wi-Fi access service to the citizens with no prior registration, by exploiting their national eIDs. We propose first a model that discusses AtA in eIDAS-based services, and we consider different possible implementation choices. We describe next the implementation of AtA in an eIDAS-based Wi-Fi access service leveraging the eIDAS Network and a Zeroshell captive portal supporting the eIDAS protocol. We discuss the problems encountered and the deploy-ment issues that may impact on the service acceptance by the users and its exploitation on large scale

    Guidelines to address the human factor in the South African National Research and Education Network beneficiary institutions

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    Even if all the technical security solutions appropriate for an organisation’s network are implemented, for example, firewalls, antivirus programs and encryption, if the human factor is neglected then these technical security solutions will serve no purpose. The greatest challenge to network security is probably not the technological solutions that organisations invest in, but the human factor (non-technical solutions), which most organisations neglect. The human factor is often ignored even though humans are the most important resources of organisations and perform all the physical tasks, configure and manage equipment, enter data, manage people and operate the systems and networks. The same people that manage and operate networks and systems have vulnerabilities. They are not perfect and there will always be an element of mistake-making or error. In other words, humans make mistakes that could result in security vulnerabilities, and the exploitation of these vulnerabilities could in turn result in network security breaches. Human vulnerabilities are driven by many factors including insufficient security education, training and awareness, a lack of security policies and procedures in the organisation, a limited attention span and negligence. Network security may thus be compromised by this human vulnerability. In the context of this dissertation, both physical and technological controls should be implemented to ensure the security of the SANReN network. However, if the human factors are not adequately addressed, the network would become vulnerable to risks posed by the human factor which could threaten the security of the network. Accordingly, the primary research objective of this study is to formulate guidelines that address the information security related human factors in the rolling out and continued management of the SANReN network. An analysis of existing policies and procedures governing the SANReN network was conducted and it was determined that there are currently no guidelines addressing the human factor in the SANReN beneficiary institutions. Therefore, the aim of this study is to provide the guidelines for addressing the human factor threats in the SANReN beneficiary institutions

    An Evaluation of Targeted Security Awareness for End Users

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    The content of Chapter 4 including the experimental work and the results have been published. Moreover, most parts of Chapter 5 and some content of Chapter 6 have also been published. It should be mentioned, there are some contents of the thesis which are not published yet and are intended to be published either within conferences of academic journals.Users are frequently cited as being the weakest link in the information security chain. However, in many cases they are ill-positioned to follow good practice and make the necessary decisions. Part of the reason here is that even if security awareness, training and/or education have been provided, some of the key points may have been forgotten by the time that users find themselves facing security-related decisions. There are several scenarios in which users find themselves facing security-related decisions. However, while in such situations, many do not have an adequate understanding of security and do not receive the appropriate advice to make the necessary decisions they are required to make. One possible solution to this situation is to ensure that security guidance and feedback are available when necessary, and to provide effective information that can help the user make informed decisions at the right time to avoid security risks. Such targeted security awareness-raising has the potential to provide support to users at the point of need, in order to take the necessary security precautions and make informed decisions. To examine the approach of targeted security awareness-raising, an experimental study was conducted to test the effectiveness of this approach and presents the results of the study. This experiment was based around the scenario of connecting to Wi-Fi networks, and determining whether participants could make informed and correct decisions about which networks were safe to connect to. Four alternative interfaces were tested (ranging from a version that mimicked the standard Windows Wi-Fi network selection interface, through to versions with security ratings and additional guidance). The aim of the experiment was to determine the extent to which providing such information could affect user decisions when presented with a range of networks to connect to, and help to move them more effectively in the direction of security. The findings revealed that, users always tended to connect to the known names first in the absence of security information and very prone to connecting to names that look like a known name. In addition, claimed signal strength is also found to be a persuading factor. Results have also revealed that users can be influenced positively, if suitably visible feedback and guidance is given at the task in hand. While users did not exhibit perfect behaviour in terms of selecting more secure networks in preference to less protected ones, there was a tangible improvement amongst the users that had been exposed to the selection interfaces offering and promoting more security-related information. In common with findings from other security contexts, these results suggest that users’ security behaviours can be positively influenced purely through the provision of additional information, enabling them to make better choices even if the system does not provide any further means of enforcement. This research also has led to introduce a series of related design principles and guidelines that have been identified from the experimental study. To study the effectiveness of the proposed design principles and guidelines, existing applications have been examined in order to evaluate their consistency with these recommendations and have identified scope for improvement, which would in turn assist user awareness via a more targeted approach. This is illustrated through an example where the design principles and guidelines are applied to the appearance of email notifications that aim to assist users in spotting phishing threats. In addition to the aforementioned results of the experimental work, the findings demonstrate that the abstraction of design principles and guidelines allows the lessons to be transferred to other contexts. Furthermore, following and applying the guidelines enables subtle but relevant refinements to the user interface. Considering the application of this security lesson more broadly, guidance and feedback/nudges should be provided by default in other security contexts.Ministry of Higher Education and Scientific Research - Libya

    “Access denied”? Barriers for staff accessing, using and sharing published information online within the National Health Service (NHS) in England: technology, risk, culture, policy and practice

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    The overall aim of the study was to investigate barriers to online professional information seeking, use and sharing occurring within the NHS in England, their possible effects (upon education, working practices, working lives and clinical and organisational effectiveness), and possible explanatory or causative factors. The investigation adopted a qualitative case study approach, using semi-structured interviews and documentary analysis as its methods, with three NHS Trusts of different types (acute - district general hospital, mental health / community, acute – teaching) as the nested sites of data collection. It aimed to be both exploratory and explanatory. A stratified sample of participants, including representatives of professions whose perspectives were deemed to be relevant, and clinicians with educational or staff development responsibilities, was recruited for each Trust. Three non-Trust specialists (the product manager of a secure web gateway vendor, an academic e-learning specialist, and the senior manager at NICE responsible for the NHS Evidence electronic content and web platform) were also interviewed. Policy documents, statistics, strategies, reports and quality accounts for the Trusts were obtained via public websites, from participants or via Freedom of Information requests. Thematic analysis following the approach of Braun and Clarke (2006) was adopted as the analytic method for both interviews and documents. The key themes of the results that emerged are presented: barriers to accessing and using information, education and training, professional cultures and norms, information governance and security, and communications policy. The findings are discussed under three main headings: power, culture, trust and risk in information security; use and regulation of Web 2.0 and social media, and the system of professions. It became evident that the roots of problems with access to and use of such information lay deep within the culture and organisational characteristics of the NHS and its use of IT. A possible model is presented to explain the interaction of the various technical and organisational factors that were identified as relevant. A number of policy recommendations are put forward to improve access to published information at Trust level, as well as recommendations for further research

    Organisational and cross-organisational identity management

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    We are all familiar with the overwhelming number of usernames and passwords needed in our daily life in the networked world. Services need to identify their end users and keep record on them. Traditionally, this has been done by providing the end user with an extra username and password for each new service. Managing all these isolated user identities is painful for the end user and work-intensive for the service owner. Having out-of-date user accounts and privileges is also a security threat for an organisation. Identity management refers to the process of representing and recognising entities as digital identities in computer networks. In an organisation, an end user s identity has a lifecycle. An identity is created when the user enters the organisation; for example, a new employee is hired, a student is admitted in a school or a company gets a new customer. Changes in the end user s affiliation to the organisation are reflected to his identity, and when the end user departs, his identity needs to be revoked. Organisational identity management develops and maintains an architecture that supports maintenance of user identities during their life cycle. In crossorganisational identity management, these identities are used also when accessing services that are outside the organisation. This thesis studies identity management in organisational and cross-organisational services. An organisation s motivations for improving identity management are presented. Attention is paid to how the person registries in an organisation should be interconnected to introduce an aggregated view on an end user s identity. Connection between identity management and introduction of more reliable authentication methods is shown. The author suggests what needs to be taken into account in a usable deployment of single sign-on and PKI for authentication. Federated identity management is a new way to implement end user identity management in services that cross organisational boundaries. This thesis studies how to establish a federation, an association of organisations that wants to exchange information about their users and services to enable cross-organisational collaborations and transactions. The author presents guidelines for organising a federation and preserving an end user s privacy in it. Finally, common use scenarios for federated identity management are presented

    Masquerading Techniques in IEEE 802.11 Wireless Local Area Networks

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    The airborne nature of wireless transmission offers a potential target for attackers to compromise IEEE 802.11 Wireless Local Area Network (WLAN). In this dissertation, we explore the current WLAN security threats and their corresponding defense solutions. In our study, we divide WLAN vulnerabilities into two aspects, client, and administrator. The client-side vulnerability investigation is based on examining the Evil Twin Attack (ETA) while our administrator side research targets Wi-Fi Protected Access II (WPA2). Three novel techniques have been presented to detect ETA. The detection methods are based on (1) creating a secure connection to a remote server to detect the change of gateway\u27s public IP address by switching from one Access Point (AP) to another. (2) Monitoring multiple Wi-Fi channels in a random order looking for specific data packets sent by the remote server. (3) Merging the previous solutions into one universal ETA detection method using Virtual Wireless Clients (VWCs). On the other hand, we present a new vulnerability that allows an attacker to force the victim\u27s smartphone to consume data through the cellular network by starting the data download on the victim\u27s cell phone without the victim\u27s permission. A new scheme has been developed to speed up the active dictionary attack intensity on WPA2 based on two novel ideas. First, the scheme connects multiple VWCs to the AP at the same time-each VWC has its own spoofed MAC address. Second, each of the VWCs could try many passphrases using single wireless session. Furthermore, we present a new technique to avoid bandwidth limitation imposed by Wi-Fi hotspots. The proposed method creates multiple VWCs to access the WLAN. The combination of the individual bandwidth of each VWC results in an increase of the total bandwidth gained by the attacker. All proposal techniques have been implemented and evaluated in real-life scenarios

    A study of EU data protection regulation and appropriate security for digital services and platforms

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    A law often has more than one purpose, more than one intention, and more than one interpretation. A meticulously formulated and context agnostic law text will still, when faced with a field propelled by intense innovation, eventually become obsolete. The European Data Protection Directive is a good example of such legislation. It may be argued that the technological modifications brought on by the EU General Data Protection Regulation (GDPR) are nominal in comparison to the previous Directive, but from a business perspective the changes are significant and important. The Directive’s lack of direct economic incentive for companies to protect personal data has changed with the Regulation, as companies may now have to pay severe fines for violating the legislation. The objective of the thesis is to establish the notion of trust as a key design goal for information systems handling personal data. This includes interpreting the EU legislation on data protection and using the interpretation as a foundation for further investigation. This interpretation is connected to the areas of analytics, security, and privacy concerns for intelligent service development. Finally, the centralised platform business model and its challenges is examined, and three main resolution themes for regulating platform privacy are proposed. The aims of the proposed resolutions are to create a more trustful relationship between providers and data subjects, while also improving the conditions for competition and thus providing data subjects with service alternatives. The thesis contributes new insights into the evolving privacy practices in the digital society at an important time of transition from the service driven business models to the platform business models. Firstly, privacy-related regulation and state of the art analytics development are examined to understand their implications for intelligent services that are based on automated processing and profiling. The ability to choose between providers of intelligent services is identified as the core challenge. Secondly, the thesis examines what is meant by appropriate security for systems that handle personal data, something the GDPR requires that organisations use without however specifying what can be considered appropriate. We propose a method for active network security in web software that is developed through the use of analytics for detection and by inserting data generators into a software installation. The active network security method is proposed as a framework for achieving compliance with the GDPR requirements for services and platforms to use appropriate security. Thirdly, the platform business model is considered from the privacy point of view and the implication of “processing silos” for intelligent services. The centralised platform model is considered problematic from both the data subject and from the competition standpoint. A resolution is offered for enabling user-initiated open data flow to counter the centralised “processing silos”, and thereby to facilitate the introduction of decentralised platforms. The thesis provides an interdisciplinary analysis considering the legal study (lex lata) and additionally the resolution (lex ferenda) is defined through argumentativist legal dogmatics and (de lege ferenda) of how the legal framework ought to be adapted to fit the described environment. User-friendly Legal Science is applied as a theory framework to provide a holistic approach to answering the research questions. The User-friendly Legal Science theory has its roots in design science and offers a way towards achieving interdisciplinary research in the fields of information systems and legal science
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