Sökning: "ATTACKS"

Visar resultat 1 - 5 av 383 avhandlingar innehållade ordet ATTACKS.

  1. 1. Some results on fast correlation attacks

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

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  4. 3. Towards Secure SIP Signalling Service for VoIP applications : Performance-related Attacks and Preventions

    Författare :Ge Zhang; Simone Fischer-Hübner; Costas Lambrinoudakis; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SIP; VoIP; Security; Computer science; Datavetenskap; Datavetenskap; Computer Science;

    Sammanfattning : Current Voice over IP (VoIP) services are regarded less secure than the traditional public switched telephone network (PSTN). This is due to the fact that VoIP services are frequently deployed in an relatively open environment so that VoIP infrastructures can be easily accessed by potential attackers. LÄS MER

  5. 4. Security Aspects of Wireless Vehicle-to-Infrastructure Environments

    Författare :Dennis Nilsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; security; Vehicle-to-infrastructure; attacks; wireless; in-vehicle networks;

    Sammanfattning : In recent years, information technology has entered the automobile domain. Most of the functionality in a vehicle is controlled by electronics and software. There exist two main administrative functions: diagnostics and software update. Diagnostics is used to identify defective components and faulty software. LÄS MER

  7. 5. How to Secure the Connected Car

    Författare :Dennis Nilsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; in-vehicle networks; firmware updates; attacks; connected car; defense-in-depth; Security; diagnostics; wireless;

    Sammanfattning : In recent years, information technology has entered the automobile domain. Most of the functionality in a car is now controlled by electronics and software. LÄS MER