University of Gothenburg

Displaying 1-11 of 11 results

  • White Papers // Jun 2013

    Deobfuscating Embedded Malware using Probable-Plaintext Attacks

    Malware embedded in documents is regularly used as part of targeted attacks. To hinder detection by anti-virus scanners, the embedded code is usually obfuscated, often with simple Vigenere ciphers based on XOR, ADD an additional ROL instructions. While for short keys these ciphers can be easily cracked, breaking obfuscations with...

    Provided By University of Gothenburg

  • White Papers // Aug 2012

    A Robust Approach Towards Secure Neighbor Discovery for Wireless Ad Hoc Networks

    Secure neighbor discovery is an important element in wireless networking. Several important network functionalities such as routing and localization basically rely on correct neighbor discovery which is the problem concerned in this work. A wormhole attacker can easily tunnel and replay packets from one area of the wireless network to...

    Provided By University of Gothenburg

  • White Papers // Sep 2011

    A Testing Framework for Assessing Grid and Cloud Infrastructure Interoperability

    The composition of grid and cloud computing infrastructures using equipment from different vendors to allow service enrichment and increase productivity is an important need in industry and for governmental institutions. Interoperability between equipment can be achieved using the gateway approach or the standardized interface approach. These approaches, as well as...

    Provided By University of Gothenburg

  • White Papers // May 2011

    Dynamic Modeling Of Portfolio Credit Risk With Common Shocks

    The authors consider a bottom-up Markovian model of portfolio credit risk where dependence among credit names stems from the possibility of simultaneous defaults. A common shocks interpretation of the model is possible so that efficient convolution recursion procedures are available for pricing and hedging CDO tranches, conditionally on any given...

    Provided By University of Gothenburg

  • White Papers // Nov 2010

    Inflation Dynamics And Food Prices In Ethiopia

    During the global food crisis, Ethiopia experienced an unprecedented increase in inflation, among the highest in Africa. Using monthly data over the past decade, the authors estimate models of inflation to identify the importance of the factors contributing to CPI inflation and three of its major components: cereal prices, food...

    Provided By University of Gothenburg

  • White Papers // Oct 2010

    Paralocks - Role-Based Information Flow Control and Beyond

    This paper presents Paralocks, a language for building expressive but statically verifiable fine-grained information flow policies. Paralocks combine the expressive power of Flow Locks (Broberg & Sands, ESOP'06) with the ability to express policies involving runtime principles, roles (in the style of role-based access control), and relations (such as "Acts-for"...

    Provided By University of Gothenburg

  • White Papers // May 2010

    Gender, Competition And The Efficiency Of Policy Intervention

    Recent research has shown that women shy away from competition more often than men. The authors evaluate experimentally three alternative policy interventions to promote women in competitions: Quotas, Preferential Treatment, and Repetition of the Competition unless a critical number of female winners are reached. They find that Quotas and Preferential...

    Provided By University of Gothenburg

  • White Papers // May 2010

    Health Investments Under Risk And Ambiguity

    This paper discusses how a decision maker should deal with uncertainty, both in the sense of a well-known probability distribution of different outcomes and as a situation where also the probability distribution is unknown. A simple baseline model is used throughout the paper, where the decision maker can invest in...

    Provided By University of Gothenburg

  • White Papers // Mar 2010

    D-MORE: Dynamic Mesh-Based Overlay Peer-to-Peer Infrastructure

    Traditionally, Internet Service Providers (ISPs) have to interconnect with content providers to provide network services to customers. The current business model that connectivity and bandwidth become commodities has motivated ISPs to distribute content and other application-specific services directly to their customers. Hence, it is desirable for ISPs to economize existing...

    Provided By University of Gothenburg

  • White Papers // Jan 2009

    Interest-Based Peer-to-Peer Group Management

    Peer-to-Peer systems become popular applications but suffer from insufficient resource availability which is caused by free-riders and inefficient lookup algorithms. To address the first cause, a number of recent works have focused on providing appropriate incentive mechanisms to encourage participants to contribute their resources to the P2P systems. To improve...

    Provided By University of Gothenburg

  • White Papers // Jan 2009

    Shared Leadership As A Future Leadership Style

    Leadership has always attracted human beings. In this paper they identify the traditional top-down single leadership as a powerful norm, influencing every leader. With this assumption in mind they have chosen to conduct a literature review where they examine the concept of shared leadership on two levels in order to...

    Provided By University of Gothenburg

  • White Papers // Jan 2009

    Shared Leadership As A Future Leadership Style

    Leadership has always attracted human beings. In this paper they identify the traditional top-down single leadership as a powerful norm, influencing every leader. With this assumption in mind they have chosen to conduct a literature review where they examine the concept of shared leadership on two levels in order to...

    Provided By University of Gothenburg

  • White Papers // May 2010

    Gender, Competition And The Efficiency Of Policy Intervention

    Recent research has shown that women shy away from competition more often than men. The authors evaluate experimentally three alternative policy interventions to promote women in competitions: Quotas, Preferential Treatment, and Repetition of the Competition unless a critical number of female winners are reached. They find that Quotas and Preferential...

    Provided By University of Gothenburg

  • White Papers // May 2010

    Health Investments Under Risk And Ambiguity

    This paper discusses how a decision maker should deal with uncertainty, both in the sense of a well-known probability distribution of different outcomes and as a situation where also the probability distribution is unknown. A simple baseline model is used throughout the paper, where the decision maker can invest in...

    Provided By University of Gothenburg

  • White Papers // Nov 2010

    Inflation Dynamics And Food Prices In Ethiopia

    During the global food crisis, Ethiopia experienced an unprecedented increase in inflation, among the highest in Africa. Using monthly data over the past decade, the authors estimate models of inflation to identify the importance of the factors contributing to CPI inflation and three of its major components: cereal prices, food...

    Provided By University of Gothenburg

  • White Papers // May 2011

    Dynamic Modeling Of Portfolio Credit Risk With Common Shocks

    The authors consider a bottom-up Markovian model of portfolio credit risk where dependence among credit names stems from the possibility of simultaneous defaults. A common shocks interpretation of the model is possible so that efficient convolution recursion procedures are available for pricing and hedging CDO tranches, conditionally on any given...

    Provided By University of Gothenburg

  • White Papers // Oct 2010

    Paralocks - Role-Based Information Flow Control and Beyond

    This paper presents Paralocks, a language for building expressive but statically verifiable fine-grained information flow policies. Paralocks combine the expressive power of Flow Locks (Broberg & Sands, ESOP'06) with the ability to express policies involving runtime principles, roles (in the style of role-based access control), and relations (such as "Acts-for"...

    Provided By University of Gothenburg

  • White Papers // Mar 2010

    D-MORE: Dynamic Mesh-Based Overlay Peer-to-Peer Infrastructure

    Traditionally, Internet Service Providers (ISPs) have to interconnect with content providers to provide network services to customers. The current business model that connectivity and bandwidth become commodities has motivated ISPs to distribute content and other application-specific services directly to their customers. Hence, it is desirable for ISPs to economize existing...

    Provided By University of Gothenburg

  • White Papers // Jan 2009

    Interest-Based Peer-to-Peer Group Management

    Peer-to-Peer systems become popular applications but suffer from insufficient resource availability which is caused by free-riders and inefficient lookup algorithms. To address the first cause, a number of recent works have focused on providing appropriate incentive mechanisms to encourage participants to contribute their resources to the P2P systems. To improve...

    Provided By University of Gothenburg

  • White Papers // Aug 2012

    A Robust Approach Towards Secure Neighbor Discovery for Wireless Ad Hoc Networks

    Secure neighbor discovery is an important element in wireless networking. Several important network functionalities such as routing and localization basically rely on correct neighbor discovery which is the problem concerned in this work. A wormhole attacker can easily tunnel and replay packets from one area of the wireless network to...

    Provided By University of Gothenburg

  • White Papers // Jun 2013

    Deobfuscating Embedded Malware using Probable-Plaintext Attacks

    Malware embedded in documents is regularly used as part of targeted attacks. To hinder detection by anti-virus scanners, the embedded code is usually obfuscated, often with simple Vigenere ciphers based on XOR, ADD an additional ROL instructions. While for short keys these ciphers can be easily cracked, breaking obfuscations with...

    Provided By University of Gothenburg

  • White Papers // Sep 2011

    A Testing Framework for Assessing Grid and Cloud Infrastructure Interoperability

    The composition of grid and cloud computing infrastructures using equipment from different vendors to allow service enrichment and increase productivity is an important need in industry and for governmental institutions. Interoperability between equipment can be achieved using the gateway approach or the standardized interface approach. These approaches, as well as...

    Provided By University of Gothenburg