Search for dissertations about: "correlation attack"

Showing result 1 - 5 of 28 swedish dissertations containing the words correlation attack.

  2. 1. Some results on fast correlation attacks

    Author : Fredrik Jönsson; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Technological sciences; stream ciphers; linear feedback shift registers; cryptology; correlation attacks; cryptanalysis; Teknik; Informatics; systems theory; Informatik; systemteori;

    Abstract : This thesis presents new results on fast correlation attacks on stream ciphers. In particular, fast correlation attacks on stream ciphers containing linear shift registers with an arbitrary number of taps, are considered. A general introduction to stream ciphers and correlation attacks is given. READ MORE

  4. 2. Some Results on Distinguishing Attacks on Stream Ciphers

    Author : Håkan Englund; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; correlation attack; irregularly clocked filter generator; distinguishing attacks; Stream ciphers; filter generator; Pomaranch; Dragon; LILI-128; LILI-II;

    Abstract : Stream ciphers are cryptographic primitives that are used to ensure the privacy of a message that is sent over a digital communication channel. In this thesis we will present new cryptanalytic results for several stream ciphers. READ MORE

  5. 3. Acute intermittent porphyria : studies of chronic disease, recombinant enzyme therapy and late complications

    Author : Eliane Sardh; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Acute intermittent porphria; porphobilinogen; 5-aminolevulinic acid; porphobilinogen deaminase; enzyme therapy; acute porphyria attack; chronic active disease; late complications;

    Abstract : This thesis comprise five studies on patients with acute intermittent porphyria (AIP) observed under different clinical conditions associated with the disorder. They have generally been monitored at the porphyria out-patient clinic in Stockholm South Hospital, and were biochemically monitored at Porphyria Centre Sweden. READ MORE

  6. 4. Ligand Dependent Regioselectivity in Palladium Mediated Allylic Alkylation

    Author : Charlotte Johansson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Palladium; allylic alkylation; η3-allyl palladium complexes; regioselectivity; PN-ligand; memory effects; dynamics; ligand effect; trans effects.;

    Abstract : In this thesis, different aspects on ligand dependent regioselectivity in palladium mediated allylic alkylation have been studied. It is believed that the regioselectivity is a result of nucleophilic attack trans to phosphorous when applying ligands wih different donor atoms. READ MORE

  7. 5. Carbon castles vs. beetle-fungus armies : phenology of the spruce bark beetle and Norway spruce resistance in times of climate change

    Author : Petter Öhrn; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : In recent years, carbon sequestration in European forests has decreased due to extensive droughts and bark beetle outbreaks brought on by climate change. The Eurasian spruce bark beetle (Ips typographus (L.)) is a natural disturbance agent in forests where Norway spruce (Picea abies (Karst)) is dominant. READ MORE