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    ALPHA : An Adaptive and Lightweight Protocol for Hop-by-hop Authentication

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    Wireless multi-hop networks, which are becoming commercially available and increasingly popular, are particularly susceptible to attacks based on flooding and the interception, tampering with, and forging of packets. Thus, reliable communication in such networks quintessentially depends on mechanisms to verify the authenticity of network traffic and the identity of communicating peers. A major challenge to achieve this functionality are the tight resource constraints of such devices as smartphones, mesh and sensor nodes, with regard to CPU, memory, and energy. Since existing approaches suffer from significant drawbacks related to functionality and efficiency, we present in this paper ALPHA, an Adaptive and Lightweight Protocol for Hop-by-hop Authentication. ALPHA is a lightweight approach that establishes a verifiable notion of identity for network traffic, based on computationally cheap hash functions, enabling end-to-end as well as hop-by-hop integrity protection for unicast traffic.

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    Description

    Title : ALPHA : An Adaptive and Lightweight Protocol for Hop-by-hop Authentication
    Author(s) : Tobias Heer, Stefan Götz, Oscar Garcia Morchon, Klaus Wehrle
    Abstract : Wireless multi-hop networks, which are becoming commercially available and increasingly popular, are particularly susceptible to attacks based on flooding and the interception, tampering with, and forging of packets. Thus, reliable communication in such networks quintessentially depends on mechanisms to verify the authenticity of network traffic and the identity of communicating peers. A major challenge to achieve this functionality are the tight resource constraints of such devices as smartphones, mesh and sensor nodes, with regard to CPU, memory, and energy. Since existing approaches suffer from significant drawbacks related to functionality and efficiency, we present in this paper ALPHA, an Adaptive and Lightweight Protocol for Hop-by-hop Authentication. ALPHA is a lightweight approach that establishes a verifiable notion of identity for network traffic, based on computationally cheap hash functions, enabling end-to-end as well as hop-by-hop integrity protection for unicast traffic.
    Keywords : authentication, hash chains, integrity protection

    Subject : unspecified
    Area : Other
    Language : English
    Year : 2008

    Affiliations Computer Science, RWTH Aachen University, Aachen
    Journal : Design
    Url : http://api.mendeley.com/research/alpha-adaptive-lightweight-protocol-hopbyhop-authentication/

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    Klaus's Peer Evaluation activity

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