Sökning: "timing attacks"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden timing attacks.

  1. 1. Securing functional programs with floating-label information-flow control

    Författare :Pablo Buiras; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; covert timing channels; LIO; concurrency; type-level programming; floating-label; Haskell; internal timing; dynamic enforcement; DC labels; dynamic policies; lazy evaluation; information-flow control; cache-based attacks; language-based security; hybrid enforcement; flow-sensitivity; functional programming; privileges;

    Sammanfattning : The work presented in this thesis focuses on information-flow control systems for functional programs, particularly on the LIO library in Haskell. The thesis considers threemain aspects in this area: timing covert channels, dynamic policies andenforcement mechanisms that improve precision of the analysis. LÄS MER

  3. 2. Secure GNSS-based Positioning and Timing : Distance-Decreasing attacks, fault detection and exclusion, and attack detection with the help of opportunistic signals

    Författare :Kewei Zhang; Panagiotis Papadimitratos; Erik G. Larsson; Christina Pöpper; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : With trillions of devices connected in large scale systems in a wired or wireless manner, positioning and synchronization become vital. Global Navigation Satellite System (GNSS) is the first choice to provide global coverage for positioning and synchronization services. 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. On Certificate Transparency Verification and Unlinkability of Websites Visited by Tor Users

    Författare :Rasmus Dahlberg; Tobias Pulls; Stefan Lindskog; Steven J. Murdoch; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Auditing; Certificate Transparency; DNS; Gossip; Side-Channels; Timing Attacks; Tor; Tor Browser; Website Fingerprinting; Website Oracles; Granskning; Certificate Transparency; DNS; Skvaller; Sidokanaler; Tidtagningsattacker; Tor; Torswebbläsare; Mönsterigenkänning; Webbplatsorakel; Computer Science; Datavetenskap;

    Sammanfattning : Certificate Transparency is an ecosystem of logs, monitors, and auditors that hold certificate authorities accountable while issuing certificates. We show how the amount of trust that TLS clients and domain owners need to place in Certificate Transparency can be reduced, both in the context of existing gradual deployments and the largely unexplored area of Tor. LÄS MER

  7. 5. Unwanted Traffic and Information Disclosure in VoIP Networks : Threats and Countermeasures

    Författare :Ge Zhang; Simone Fischer-Huebner; Costas Lambrinoudakis; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SIP; VoIP; security; Denial of Service; Vulnerability analysis; timing attacks; Spam; DTMF; SIP; RTP; Computer Science; Datavetenskap;

    Sammanfattning : The success of the Internet has brought significant changes to the telecommunication industry. One of the remarkable outcomes of this evolution is Voice over IP (VoIP), which enables realtime voice communications over packet switched networks for a lower cost than traditional public switched telephone networks (PSTN). LÄS MER