PDL ABSTRACT

Survivable Information Storage Systems

IEEE Computer, August 2000.

Jay Wylie*, Michael Bigrigg*, John Strunk, Gregory Ganger, Han Kiliccote* and Pradeep Khosla*

Dept. Electrical and Computer Engineering
*Institute for Complex Engineered Systems
Carnegie Mellon University
Pittsburgh, PA 15213

http://www.pdl.cmu.edu/
http://www.pdl..cmu.edu/PASIS/

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 combines decentralized storage system technologies, data redundancy and encoding, and dynamic self-maintenance to create survivable information storage.

The PASIS architecture flexibly and efficiently combines proven technologies for constructing information storage systems whose availability, confidentiality, and integrity policies can survive component failures and malicious attacks.

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