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Publications (3)1.68 Total impact

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    ABSTRACT: Survivable storage systems must maintain data and access to it in the face of malicious and accidental problems with storage servers, interconnection networks, client systems and user accounts. These four component types can be grouped into two classes: server-side problems and client-side problems. The PASIS architecture addresses server-side problems, including the connections to those servers, by encoding data with threshold schemes and distributing trust amongst sets of storage servers. Self-securing storage addresses client and user account problems by transparently auditing accesses and versioning data within each storage server. Thus, PASIS clients use threshold schemes to protect themselves from compromised servers, and self-securing servers use full access auditing to protect their data from compromised clients. Together, these techniques can provide truly survivable storage systems
    DARPA Information Survivability Conference & Exposition II, 2001. DISCEX '01. Proceedings; 02/2001
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    ABSTRACT: As society increasingly relies on digitally stored and accessed information, supporting the availability, integrity and confidentiality of this information is crucial. We need systems in which users can securely store critical information, ensuring that it persists, is continuously accessible, cannot be destroyed and is kept confidential. A survivable storage system would provide these guarantees over time and despite malicious compromises of storage node subsets. The PASIS architecture flexibly and efficiently combines proven technologies (decentralized storage system technologies, data redundancy and encoding, and dynamic self-maintenance) for constructing information storage systems whose availability, confidentiality and integrity policies can survive component failures and malicious attacks
    Computer 09/2000; · 1.68 Impact Factor
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