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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Lauros : Framtidens krypteringssystem

Laurila, Kevin, Rosell, Vendela January 2024 (has links)
Syftet med uppsatsen är att undersöka kryptografins bakgrund, med fokus på symmetrisk kryptering, och att ta fram och jämföra ett nytt krypteringssystem med andra etablerade krypteringssystem. En litteraturstudie genomfördes för att presentera de fem finalisterna i NIST:s krypteringstävling och deras sårbarheter. Kunskaperna från detta gav inspiration till utvecklingen av Lauros, ett nytt symmetriskt krypteringssystem. Det nya systemet har testats och jämförts med NIST-finalisterna AES och RC6. Medelvärde och väntevärde har beräknats för de tre krypteringssystemen och presenterats i diagram, ett för kryptering och ett för dekryptering. Frekvenser av tecknen i binär form i Lauros, AES och RC6 har analyserats och presenterats i ett stapeldiagram.  Resultatet av mätningen av hastigheten är att en text på 1000 tecken krypteras på mellan ungefär 0,010 och 0,012 sekunder med Lauros, medan dekryptering av samma text ligger inom intervallet 0,007 och 0,012 sekunder i 95% av fallen. Analysen av frekvenser i den krypterade texten visade på att tecknen var relativt jämnt fördelade efter tio krypteringar med Lauros av samma klartext. De 100 vanligaste tecknen förekom mellan 41 och 58 gånger. Lauros, AES och RC6 visar snarlika diagram över frekvenser.
2

Från bläck till klick – en modernisering av ärvdabalkens formkrav? Särskilt om elektronisk underskrift kan förstärka skyddet av testators vilja / A modernized Inheritance Code with electronic signatures?

Le, Lilian January 2024 (has links)
This master thesis examines the interpretation of formal requirements when establishing a will according to the Inheritance Code. Chapter 10, paragraph 1 contains the main formal requirements for an ordinary will. The formal requirements are based on principles to preserve the testator’s intent. According to the legislator, the testator’s intent should be considered and preserved to the greatest extent possible, if the testator has established a valid will before deceasing. To gain validity, the will must contain a declaration and the testator’s signature in writing. The signature must also be signed or declared in front of two witnesses. However, the law does not specify any requirements of personal signatures, or if the signature needs to be written by a pen. This opens for a discussion if wills can be signed with electronic signatures. Additionally, the law does not protect a valid will from disappearing since the formal requirements do not require any formal registration that a will exist. Hence, there is a lack of regulation and interoperation of the formal requirements. The purpose of this thesis is to examine if the formal requirements fulfill their essential purposes of the protection of a testator’s intent and if the protection can be enhanced with electronic signatures.  The results of the research are as follows: Chapter 10, paragraph 1 does not explicitly prohibit electronic signature, although a personal signature is customary. Advanced electronic signatures, based on EU regulations and the interpretation of Swedish legislation and case law, should not be denied legal effect unless there is a specific national law that requires a personal signature. Although there is no explicit law that prohibits an electronic signature on ordinary wills, the legislator has not commented on this. There is a substantial need for guidance by the legislator on this issue, and guidance whether a copy of a will is equally valid as the original document.  In conclusion, the Inheritance Code does not require a personal signature for a valid ordinary will. Protection of the testator’s intent can be enhanced with an electronic registration of the will; however, this requires that the will can be established in an electronic way. Hence, the signature must be an electronic signature. The formal requirements should not extend to a mandatory registration of the will, but the registration should be voluntary.

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