Search results for "Sikkerhet"
showing 10 items of 80 documents
Detecting Packed PE Files : Executable file analysis for the Windows operating system
2021
Master's thesis in Cyber security (IKT523) Malware authors invent new methods regularly to hide and obfuscate their code. One of these methods is known as packing. An entire program is hidden inside another executable program; however, the hidden program is usually encrypted or obfuscated such that antivirus software cannot detect its real intent without unpacking it. This thesis will look into common PE packers and describe the development of an application used to detect packed PE binaries using static analysis. This thesis is useful for reverse engineers and antivirus developers; it will give some insight into the world of packing binaries, compression methods, and encryption methods. Th…
Tuning Suricata Intrusion Detection System for High Performance on a Single Non-Uniform Memory Access Node
2021
Master's thesis in Cyber security (IKT523) The rapid increase in network capacity poses a challenge in detecting cyber attacks. Suricata is a modern intrusion detection system(IDS) used to monitor network traffic to detect cyberattacks. Telenor is monitoring considerable amounts of network traffic with IDS-servers, commonly referred to as sensors. Occasionally, the traffic load reaches a point where theIDS drops some of the incoming packets, termed packet loss. This is a serious problem, asit can lead to undetected threats. With this in mind, Telenor wants to find out if a lossless detection can be achieved by tuning Suricata for high performance. This can be accomplished by pinning dedicat…
Informasjonssikkerhetsstyring i norsk kommunesektor : En case studie
2021
Master's thesis in Information systems (IS501) Norske kommuner digitaliserer sine tjenester i stadig økende grad, samtidig som trusselbildet fra aktører med ondsinnede intensjoner øker. For å imøtekommedisse truslene og ivareta innbyggernes integritet finnes det ulike styringssystemer for informasjonssikkerhet som enten er anbefalte eller obligatoriske i norsk offentlig sektor. Digitaliseringsdirektoratet peker på at små og mellomstore kommuner har store utfordringer med å praktisere informasjonssikkerhetsstyring. Gjennom en kvalitativ metode, med16 semistrukturerte intervjuer i små og mellomstore kommuner i Norge, har vi forsøkt å finne årsaker til, og mulige løsninger på utfordringene kom…
Teachers’ awareness, knowledge and practice of information security in school
2020
Master's thesis in Information systems (IS501) We found that the teachers in our respondent schools lacked formal training on topics of information security. Most of them did not know what phishing, backdoors and keyloggers are, and many reused passwords across multiple sites. The teachers were also concerned about lacking the knowledge to properly teach their students about information security and netiquette. The principals did not consider information security to be a primary concernand the IT-department employees had varying knowledge of information security.Meanwhile the municipality has been focused on procuring hardware and softwarefor the teachers and students, and ensuring proper u…
Privacy-enhanced network monitoring
2013
Doktorgradsavhandling i informasjons- og kommunikasjonsteknologi, Universitetet i Agder, 2014 This PhD dissertation investigates two necessary means that are required for building privacy-enhanced network monitoring systems: a policy-based privacy or confidentiality enforcement technology; and metrics measuring leakage of private or confidential information to verify and improve these policies. The privacy enforcement mechanism is based on fine-grained access control and reversible anonymisation of XML data to limit or control access to sensitive information from the monitoring systems. The metrics can be used to support a continuous improvement process, by quantifying leakages of private o…
Tilgangsstyring av elektronisk pasientjournal : en Delphistudie av dagens utfordringer og synliggjøring av potensielle forbedringer
2014
Masteroppgave i helse- og sosialinformatikk HSI 500 Universitetet Agder 2014 In health care, access to sensitive information about patients is a necessity in order to offer care to the patient, and maintain patient safety. At the same time it is important that the information is protected against unauthorized access, to ensure patient privacy. Access control is an essential function in electronic health records (EHR) to maintain the duality between patient safety and patient privacy by ensuring that authorized personnel are allowed access to information they need. However, care processes are often unpredictable, and a number of end users can be involved in treatment across organizational un…
Improving quality and safety in nursing homes and home care: the study protocol of a mixed-methods research design to implement a leadership interven…
2018
IntroductionNursing homes and home care face challenges across different countries as people are living longer, often with chronic conditions. There is a lack of knowledge regarding implementation and impact of quality and safety interventions as most research evidence so far is generated in hospitals. Additionally, there is a lack of effective leadership tools for quality and safety improvement work in this context.Methods and analysisThe aim of the ‘Improving Quality and Safety in Primary Care—Implementing a Leadership Intervention in Nursing Homes and Homecare’ (SAFE-LEAD) study is to develop and evaluate a research-based leadership guide for managers to increase quality and safety compe…
Privacy protection in a mobile biomedical information collection service
2006
Masteroppgave i informasjons- og kommunikasjonsteknologi 2006 - Høgskolen i Agder, Grimstad This report presents a model in a mobile health care environment and uses a combination of existing technologies to build a privacy protection scheme. This work covers security issues in both the wireless and wired network, and proposes solutions to these issues. A framework using PKI to distribute digital certificates combined with strong encryption using the AES algorithm is described. Using this framework in combination with a RBAC model using location control we present some principles that will ensure privacy in a mobile wireless biomedical information collection service.
Nutritional self-care among a group of older home-living people in rural Southern Norway
2015
Bjørg Dale, Ulrika SöderhamnCentre for Caring Research – Southern Norway, Faculty of Health and Sport Sciences, University of Agder, Grimstad, NorwayBackground: Older home-living people are an at-risk group for undernutrition, particularly those who are living alone. Lack of knowledge about healthy dietary habits, altered taste sensation, and declined health status are shown to be some of the factors related to undernutrition. The aims of this study were to explore how a small group of older people in Southern Norway perceived their nutritional self-care.Methods: An exploratory qualitative approach, combined with a simple self-report questionnaire, was used. Fi…
Hvilke faktorer kan forklare ansattes bruk av sikkerhetstiltak på mobile enheternår de er ute på farten?
2018
Masteroppgave informasjonssystemer IS501 - Universitetet i Agder 2018 Kontekst:Brukeren er ofte omtalt som den største trusselen motinformasjonssikkerhet i virksomheter. I dag bruker de flesteen eller fleremobile enheter på jobben. Sammen med mobile enheter kommer også nye farer knyttet til informasjonssikkerhet,ogdet er derfor svært viktig at ansatte bruker anbefalte sikkerhetstiltaknår de erpå jobben, men også utenfor virksomheten.Målet med studien er å analyserehvilkefaktorersomkan forklare bruk av sikkerhetstiltakpå mobile enheterutenfor organisatoriske rammer («ute på farten»). Målsetting:Denne avhandlingen rapporterer resultaterfra en studie der det er brukt elementer fra kjenteatferd…