Secure File Allocation and Caching in Large-scale Distributed Systems

Alessio Di Mauro, Alessandro Mei, Sushil Jajodia

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    In this paper, we present a file allocation and caching scheme that guarantees high assurance, availability, and load balancing in a large-scale distributed file system that can support dynamic updates of authorization policies. The scheme uses fragmentation and replication to store files with high security requirements in a system composed of a majority of low-security servers. We develop mechanisms to fragment files, to allocate them into multiple servers, and to cache them as close as possible to their readers while preserving the security requirement of the files, providing load-balancing, and reducing delay of read operations. The system offers a trade-off-between performance and security that is dynamically tunable according to the current level of threat. We validate our mechanisms with extensive simulations in an Internet-like network.
    Original languageEnglish
    Title of host publicationSECRYPT 2012 - Proceedings of the International Conference on Security and Cryptography
    PublisherSciTePress
    Publication date2012
    Pages182-191
    ISBN (Print)978-989-8565-24-2
    Publication statusPublished - 2012
    Event9th International Conference on Security and Cryptography (SECRYPT 2012) - Rome, Italy
    Duration: 24 Jul 201227 Jul 2012
    http://www.secrypt.icete.org/?y=2012

    Conference

    Conference9th International Conference on Security and Cryptography (SECRYPT 2012)
    CountryItaly
    CityRome
    Period24/07/201227/07/2012
    Internet address

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