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Visar resultat 1 - 5 av 7 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Quantitative vulnerability analysis of electric power networks

    Författare :Åke J. Holmgren; Torbjörn Thedéen; Lars-Göran Mattsson; Terje Aven; KTH; []
    Nyckelord :Safety Analysis; vulnerability; homeland security; risk analysis; network; electric power system; blackout; power law; statistical analysis; graph theory; branching process; game theory; Säkerhetsanalys; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Disturbances in the supply of electric power can have serious implications for everyday life as well as for national (homeland) security. A power outage can be initiated by natural disasters, adverse weather, technical failures, human errors, sabotage, terrorism, and acts of war. LÄS MER

  3. 2. Design and Security Analysis of TRNGs and PUFs

    Författare :Yang Yu; Elena Dubrova; Zhonghai Lu; Ilia Polian; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cryptographic primitive; Physical Unclonable Function; True Random Number Generator; Hardware security; Side-channel analysis; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : True Random Number Generators (TRNGs) and Physical Unclonable Functions (PUFs) are two important types of cryptographic primitives. TRNGs create a hardware-based, non-deterministic noise that is often used for generating keys, initialization vectors, and nonces for various applications that require cryptographic protection. LÄS MER

  4. 3. No Hypervisor Is an Island : System-wide Isolation Guarantees for Low Level Code

    Författare :Oliver Schwarz; Mads Dam; Christian Gehrmann; Gerwin Klein; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Platform Security; Hypervisor; Formal Verification; Theorem Proving; HOL4; DMA; Peripheral Devices; Instruction Set Architectures; ISA; Information Flow; Boot; Computer Science; Datalogi;

    Sammanfattning : The times when malware was mostly written by curious teenagers are long gone. Nowadays, threats come from criminals, competitors, and government agencies. Some of them are very skilled and very targeted in their attacks. LÄS MER

  5. 4. Dynamics of Spent Nuclear Fuel Dissolution : Impact of Catalysis, Matrix Composition and Time Evolution

    Författare :Annika Carolin Maier; Mats Jonsson; Christophe Jégou; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi; Chemistry;

    Sammanfattning : Worldwide, nuclear power produces a large portion of the electricity that we consume every day. While nuclear energy comes with certain advantages, waste originating from its use is of particular concern. LÄS MER

  7. 5. Structural Uncertainties of Rock Fractures and their Effect on Flow and Tracer Transport

    Författare :Martin Stigsson; Vladimir Cvetkovic; Ki-Bok Min; KTH; []
    Nyckelord :Fracture; Flow; Transport; Orientation uncertainty; Roughness; Self-affine; Fractal; Shear; Aperture distribution.; Land and Water Resources Engineering; Mark- och vattenteknik;

    Sammanfattning : Att förstå flöde och transport av lösta ämnen genom sprickorna i berggrunden är viktigt för den långsiktiga säkerheten av ett geologiskt slutförvar av farligt avfall. I en diskret spricknätverksmodell byggs flödesvägarna upp av kedjor av flödesvägar genom de enskilda sprickorna i bergmassan. LÄS MER