1Semiconductor supply chain is increasingly getting exposed to variety of security attacks such as Trojan insertion, cloning, counterfeiting, reverse engineering (RE), piracy of Intellectual Property (IP) or Integrated Circuit (IC) and side-channel analysis due to involvement of untrusted parties. In this thesis, we use threshold voltage-defined switches to design a logic gate that will camouflage the conventional logic gates both logically and physically to resist RE and IP piracy. The proposed gate can function as NAND, AND, NOR, OR, XOR, and XNOR robustly using threshold defined switches. We also propose a flavor of camouflaged gate that represents reduced functionality (NAND, NOR and NOT) at much lower overhead. The camouflaged design operates at nominal voltage and obeys conventional reliability limits. A small fraction of gates can be camouflaged to increase the RE effort extremely high. Simulation results indicate 46-53% area, 59-68% delay and 52-76% power overhead when 5-15% gates are identified and camouflaged using the proposed gate. A significant higher RE effort is achieved when the proposed gate is employed in the netlist using controllability, observability and hamming distance sensitivity based gate selection metrics. 1 Information included in this chapter is reprinted from [19] with permission. Copyright permission included in Appendix B.

Camouflaging is about making something invisible or less visible. Network camouflaging is about hiding certain traffic information (e.g. traffic pattern, traffic flow identity, etc.) from internal and external eavesdroppers such that important information cannot be deduced from it for malicious use. It is one of the most challenging security requirements to meet in computer networks. Existing camouflaging techniques such as traffic padding, MIX-net, etc., incur significant performance degradation when protected networks are wireless networks, such as sensor networks and mobile ad hoc networks. The reason is that wireless networks are typically subject to resource constraints (e.g. bandwidth, power supply) and possess some unique characteristics (e.g. broadcast, node mobility) that traditional wired networks do not possess. This necessitates developing new techniques that take account of properties of wireless networks and are able to achieve a good balance between performance and security. In this three-part dissertation we investigate techniques for providing network camouflaging services in wireless networks. In the first part, we address a specific problem in a hierarchical multi-task sensor network, i.e. hiding the links between observable traffic patterns and user interests. To solve the problem, a temporally constant traffic pattern, called cover traffic pattern, is needed. We describe two traf- fic padding schemes that implement the cover traffic pattern and provide algorithms for achieving the optimal energy efficiencies with each scheme. In the second part, we explore the design of a MIX-net based anonymity system in mobile ad hoc networks. The objective is to hide the source-destination relationship with respect to each connection. We survey existing MIX route determination algorithms that do not account for dynamic network topology changes, which may result in high packet loss rate and large packet latency. We then introduce adaptive algorithms to overcome this problem. In the third part, we explore the notion of providing anonymity support at MAC layer in wireless networks, which employs the broadcast property of wireless transmission. We design an IEEE 802.11-compliant MAC protocol that provides receiver anonymity for unicast frames and offers better reliability than pure broadcast protocol.

Autistic traits are associated with frequent psychological distress and everyday functional challenges. Some individuals with autistic traits “camouflage” these traits during social interactions by effortfully engaging in “typical” social behaviors. Camouflaging seems to be especially common in autistic girls and women. Emerging evidence proposes a role for camouflaging behaviors in poorer mental health and daily functioning. Furthermore, camouflaging efforts may delay receipt of a proper diagnosis and access to appropriate mental health care. Despite their clinical significance, camouflaging efforts remain difficult to quantify, and the mechanisms and impacts of camouflaging are poorly understood. This study aimed to compare multiple methods of quantifying camouflaging, investigate potential mechanisms of camouflaging, and describe mental health implications of camouflaging behaviors.The sample included 66 women (M age = 25:2 years, SD = 6:4; M IQ = 114, SD = 11) who reported social challenges and scored high on a measure of broad autistic traits. A minority (n = 22) had previously received an autism diagnosis. A majority reported significant anxiety, depression, or suicidality. Camouflaging was quantified using three methods: one self-report questionnaire (CAT-Q), and two discrepancy-based methods that contrasted presentation of autistic traits during the ADOS-2 with measures of less-visible autistic traits (AQ, TASIT-S). Analyses showed that the discrepancy-based measures agreed with each other, but not with the self-report measure of camouflaging. Regression analyses showed camouflaging scores were poorly predicted by age, IQ, performance on executive functioning tasks, and self-reported social cognitive abilities. Regression models including clinician-rated and self-reported autistic traits showed that autistic traits on the SRS-2, and camouflaging efforts on the CAT-Q, modestly but significantly predicted psychological distress and functional challenges. Finally, clinician-administered and self-report diagnostic measures demonstrated only fair or poorer agreement with each other in this unique sample that includes women with elevated self-reported camouflaging.Results emphasize the clinical significance of the camouflaging construct, which may predict mental health difficulties in individuals with autistic traits better than conventional autism measures. Quantifying camouflaging remains challenging as various proposed measures disagree with each other. Disagreement on diagnostic classification between measures underscores the importance of comprehensive, multi-method assessment of mental health in women who report difficulties fitting into social situations and who may be camouflaging significant autistic traits.

Social camouflaging is prevalent among patients with Autism spectrum disorder [ASD] and entails copying and/or masking behaviours, personality traits and adaptive functioning in order to adjust to environmental demands. The aim of this thesis was to explore clinicians’ experiences of working with adult patients with ASD who display social camouflaging. Research questions explored clinicians’ perceptions of frequency and nature of social camouflaging among males and females with ASD, as well as their competence and confidence in working with these patients. This was examined using a mixed-methods sequential explanatory design, consisting of a quantitative and a qualitative phase. Quantitative data was collected through a web-based questionnaire which was completed by clinicians [n=31] working in a specialised setting in Sweden. Four clinicians [n=4] also participated in qualitative semi-structured interviews. Paired samples t-tests indicated that females were observed to display social camouflaging more often. Clinicians’ competence and confidence did not differ to a significant degree between males and females when social camouflaging was displayed. Possible explanations for this were discussed through the main themes found in the qualitative thematic analysis. The themes consisted of clinicians’ understanding of social camouflaging, perceived obstacles when working with this group of patients and important prerequisites for clinicians in order to overcome these obstacles. The findings emphasized the need to broaden the view of ASD through future research, since it causes gaps of knowledge that clinicians seldom have the opportunities to fill. Furthermore, measures to enable support and resources for clinicians are needed to help this patient group. / Social kamouflering förekommer hos patienter med Autismspektrumtillstånd [AST] och kan yttra sig genom kopiering och/eller maskering av beteenden, personlighetsdrag och adaptiv funktion för att möjliggöra en anpassning i linje med omgivningens krav. Syftet med denna uppsats var att undersöka klinikers upplevelser av att möta vuxna patienter med AST som uppvisar social kamouflering. Frågeställningarna undersökte klinikers upplevelse av frekvens och natur av social kamouflering hos män och kvinnor med AST, samt deras kompetens och självsäkerhet i mötet med dessa patienter. Detta undersöktes genom en mixad metod med sekventiell förklarande design, innehållande en kvantitativ och en kvalitativ fas. Kvantitativa data samlades in genom ett webb-baserat formulär som fylldes i av kliniker [n=31] från specialiserade enheter i Sverige. Fyra av dessa kliniker [n=4] deltog även i kvalitativa semi-strukturerade intervjuer. Parade t-tester indikerade att kvinnor observerades uppvisa social kamouflering mer frekvent. Klinikers kompetens och självsäkerhet skilde sig inte till en betydande grad mellan män och kvinnor när social kamouflering uppvisades. Möjliga förklaringar till detta diskuterades utifrån de huvudteman som återfanns i den kvalitativa tematiska analysen. Teman inkluderade klinikers förståelse av social kamouflering, upplevda hinder i mötet med denna patientgrupp samt viktiga förutsättningar för att överkomma dessa hinder. Resultaten betonade vikten av att framtida forskning breddar bilden av AST, eftersom det tycks skapa kunskapsluckor som kliniker sällan ges möjlighet att fylla. Utöver detta framhölls behovet av åtgärder för att möjliggöra stöd och resurser för kliniker för att de skall kunna hjälpa denna patientgrupp.

This research analyses the influence of the power of a name, particularly on Zulu speaking people in South Africa. It further analyses the effect of names in other Nguni speaking communities in this country. On a wider scale it also looks at the power and the influence of names given to people of other countries on the African continent. The research primarily investigates the effects of the power of a name on the life of a black person. A name could actually lure a person to enact its meaning. For instance, the name uBagangile could influence the bearer of the name to be generally naughty or if not so, relatives around her might act naughty in different ways. It is pointed out that the act of name-giving with concomitant power vested in a name originates from God. The bearer was expected to act out the meaning of his/her name. God's power hidden in the name would constrain an individual to behave in a certain way within his/her community. The research points out that a name is not only a label that helps in the identification of an individual or an entity. A name is something that is multi-functional. First it becomes a label, a descriptive tool that may refer to a person's body structure. It is possible that a name may divulge a situation in which the person was born. Most importantly, it has the power to make the bearer become what the name means. Usually names carry one of the above accounts. If the name was chosen by an insightful name giver it may carry more than one of the above qualities. During the years of oppression before the advent of democracy in South Africa in 1994, community members made extensive use of names from the languages of the white oppressors. White names had an impact on the lives of bearers, because of the meanings and contexts associated with them. / African Languages / D.Litt. et Phil. (African Languages)

This research analyses the influence of the power of a name, particularly on Zulu speaking people in South Africa. It further analyses the effect of names in other Nguni speaking communities in this country. On a wider scale it also looks at the power and the influence of names given to people of other countries on the African continent. The research primarily investigates the effects of the power of a name on the life of a black person. A name could actually lure a person to enact its meaning. For instance, the name uBagangile could influence the bearer of the name to be generally naughty or if not so, relatives around her might act naughty in different ways. It is pointed out that the act of name-giving with concomitant power vested in a name originates from God. The bearer was expected to act out the meaning of his/her name. God's power hidden in the name would constrain an individual to behave in a certain way within his/her community. The research points out that a name is not only a label that helps in the identification of an individual or an entity. A name is something that is multi-functional. First it becomes a label, a descriptive tool that may refer to a person's body structure. It is possible that a name may divulge a situation in which the person was born. Most importantly, it has the power to make the bearer become what the name means. Usually names carry one of the above accounts. If the name was chosen by an insightful name giver it may carry more than one of the above qualities. During the years of oppression before the advent of democracy in South Africa in 1994, community members made extensive use of names from the languages of the white oppressors. White names had an impact on the lives of bearers, because of the meanings and contexts associated with them. / African Languages / D.Litt. et Phil. (African Languages)

De récentes études ont démontré que le profil féminin de l’autisme apparaît méconnu au sein de la communauté psycho-médicale, de sorte que de nombreuses femmes autistes échappent indéfiniment au diagnostic de leur condition neurologique ou ne prennent connaissance de celle-ci qu’une fois leur vie adulte bien entamée. Si le fait d’enfin prendre connaissance de l’origine de leur différence peut permettre aux personnes se découvrant autistes à un âge avancé de mieux comprendre leur propre fonctionnement et de favoriser le respect, par elles-mêmes comme par autrui, des besoins particuliers lui étant associés, les significations se voyant accordées au diagnostic d’autisme tardivement obtenu d’un point de vue identitaire apparaissent peu explorées à ce jour. La présente recherche a ainsi pour objectif premier d’analyser, sur la base de vingt entretiens semi-dirigés menés auprès d’autant de femmes autistes diagnostiquées à l’âge adulte, la façon dont ces dernières sont amenées à redéfinir la conception et l’expression de leur identité personnelle suivant la confirmation de leur différence neurologique. Notre cueillette de données ayant été réalisée en terrain mixte, soit au Québec en France, nous nous intéressons également à la manière dont un tel processus de redéfinition identitaire peut se voir influencé par le contexte géographique dans lequel évolue la personne concernée, et notamment par les représentations dominantes de l’autisme prévalant au sein de celui-ci. Enfin, nous nous interrogeons à savoir si l’émergence de mouvements sociaux luttant pour une meilleure reconnaissance sociale de l’autisme féminin ainsi que pour une plus grande valorisation de la diversité neurologique inhérente à l’espèce humaine peut se voir associée chez nos participantes au développement d’une identité collective en tant que femmes autistes ou, plus largement, en tant que personnes concernées par une forme de neurodivergence. Les résultats obtenus indiquent que l’obtention d’un diagnostic à l’âge adulte semble donner lieu chez les femmes autistes à une reconstruction identitaire globalement positive, mais que plusieurs d’entre elles demeurent réticentes à l’idée d’exprimer leur identité ainsi reconstruite auprès d’autrui dans un contexte social qu’elles estiment marqué par la prévalence d’une conception péjorative et stéréotypée de l’autisme de même que par une culture de la conformité exposant toute personne dont la manière d’être ou d’agir s’écarte des normes en place à un certain risque de stigmatisation. Nous avançons toutefois que le fait de revendiquer ouvertement leur différence à titre individuel et collectif pourrait justement permettre aux femmes autistes de contribuer à une évolution des mentalités entourant leur réalité singulière et, du fait même, à la création d’une société plus tolérante et inclusive en matière de neurodiversité. / Recent studies have shown that the female profile of autism remains largely unknown within the psycho-medical community, to the extent that many autistic women see their condition go indefinitely undetected or only get diagnosed well into their adult lives. While becoming aware of the origin of their difference may enable people discovering themselves to be autistic at an advanced age to better understand their own functioning and to ensure respect, by themselves and others alike, for the particular needs associated with it, the ways in which the late diagnosis of autism can be interpreted from an identity point of view appear to have been little explored to date. The primary objective of this research is thus to analyze, on the basis of twenty semi-structured interviews conducted with as many autistic women diagnosed in adulthood, the ways in which they can be led to redefine the conception and expression of their personal identity following the confirmation of their neurological difference. As our data collection was carried out in two distinct locations, namely in Quebec and in France, we are also interested in how such an identity redefinition process might be influenced by the geographic context in which the person concerned evolves, and especially by the dominant representations of autism prevailing within that context. Finally, we examine whether the emergence of social movements struggling for better social recognition of female autism and for greater appreciation of the neurological diversity inherent to humankind can be associated in our participants with the development of a collective identity as autistic women or, more broadly, as people affected by some form of neurodivergence. Our results indicate that the diagnosis of autism in adulthood appears to result in an overall positive identity reconstruction for autistic women, but that many of them remain reluctant to express their reconstructed identity to others in a social context they perceive to be marked by the prevalence of a pejorative and stereotypical conception of autism and by a culture of conformity that exposes anyone whose way of being or acting deviates from the norms in place to a certain risk of stigmatization. We suggest, however, that openly asserting their difference as individuals and as a group may enable autistic women to contribute to a change in attitudes regarding their specific reality and, as a result, to the creation of a more tolerant and inclusive society with respect to neurodiversity as a whole.