Practical Mobile Proactive Secret Sharing
Name
351632178-MIT.pdf
Description
Full printable version
Size
3.8 MB
Format
Adobe PDF
Checksum (MD5)
44293adc68cff958b9ab0118cc75188b
Author(s)
Dryjanski, David
Advisor(s)
Barbara Liskov.
Alternative Title
MPSS
Date Issued
2008
Publisher
Massachusetts Institute of Technology
Abstract
Secret sharing schemes are needed to store and protect secrets in large scale distributed systems. These schemes protect a secret by dividing the it into shares and distributing the shares to multiple shareholders. This way the compromise of a single shareholder does not reveal the secret. Many new secret sharing schemes, such as Proactive Secret Sharing, have been developed to combat the increasing threat from malicious nodes and keep systems secure. However, most of these schemes can be compromised over time, since share transfer and redistribution are static: the set of shareholders is fixed. Mobile Proactive Secret Sharing (MPSS) is a new protocol with dynamic redistribution that can adapt to Byzantine faults and remain secure for the duration of long-lived systems. This thesis describes the simulation, testing, and evaluation of the MPSS protocol to better understand the performance trade-offs and practicality of secret sharing protocols operating in Byzantine faulty environments. The thesis evaluates the original MPSS scheme and the MPSS scheme with verifiable accusations in a distributed setting, finds that both schemes are practical, and explores the performance trade-offs between the two schemes.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.
Includes bibliographical references (p. 59-60).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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