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    IBM Research

    Cryptographic Security for a High-Performance Distributed File System

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    Storage systems are increasingly subject to attacks. Cryptographic file systems mitigate the danger of exposing data by using encryption and integrity protection methods and guarantee end-to-end security for their clients. This paper describes a generic design for cryptographic file systems and its realization in a distributed storage-area network (SAN) file system. Key management is integrated with the meta-data service of the SAN file system. The implementation supports file encryption and integrity protection through hash trees. Both techniques have been implemented in the client file system driver. Benchmarks demonstrate that the overhead is noticeable for some artificially constructed use cases, but that it is very small for typical file system applications.

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    Description

    New Full text for this article was not available? Send a request to the author(s).
    Title : Cryptographic Security for a High-Performance Distributed File System
    Author(s) : Roman Pletka and Christian Cachin
    Abstract : Storage systems are increasingly subject to attacks. Cryptographic file systems mitigate the danger of exposing data by using encryption and integrity protection methods and guarantee end-to-end security for their clients. This paper describes a generic design for cryptographic file systems and its realization in a distributed storage-area network (SAN) file system. Key management is integrated with the meta-data service of the SAN file system. The implementation supports file encryption and integrity protection through hash trees. Both techniques have been implemented in the client file system driver. Benchmarks demonstrate that the overhead is noticeable for some artificially constructed use cases, but that it is very small for typical file system applications.
    Keywords : croptographic file system

    Subject : unspecified
    Area : Computer Science
    Language : English
    Year : 2006

    Affiliations :  IBM Research
    Url : http://ecwww.eurecom.fr/~pletka/publications/rz3661.pdf
    Doi : 10.1.1.79.4739

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