Positive Train Control (PTC) is an electronic system that enforces train separation, speed enforcement, roadway worker protection and a host of other activities essential to operate railroads safety and efficiently that requires wireless communication to exchange control and sensory information between mobile locomotive and static control centers and wayside devices. This requires communication security ensuring the freshness, confidentiality, integrity, and authenticity of the information. For that purpose, we propose a cryptography based key management system (KMS). This paper outlines the requirements for a KMS, provides a proposed key distribution method, and highlights several significant implementation tradeoffs.


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    Title :

    Key management requirements for Positive Train Control communications security


    Contributors:
    Hartong, M. (author) / Goel, R. (author) / Wijesekera, D. (author)


    Publication date :

    2006-01-01


    Size :

    7047613 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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