NDLI: Hardening functions for large scale distributed computations

Content Provider	IEEE Xplore Digital Library
Author	Szajda, D. Lawson, B. Owen, J.
Copyright Year	2003
Description	Author affiliation: Richmond Univ., VA, USA (Szajda, D.; Lawson, B.; Owen, J.)
Abstract	The past few years have seen the development of distributed computing platforms designed to utilize the spare processor cycles of a large number of personal computers attached to the Internet in an effort to generate levels of computing power normally achieved only with expensive supercomputers. Such large scale distributed computations running in untrusted environments raise a number of security concerns, including the potential for intentional or unintentional corruption of computations, and for participants to claim credit for computing that has not been completed. This paper presents two strategies for hardening selected applications that utilize such distributed computations. Specifically, we show that carefully seeding certain tasks with precomputed data can significantly increase resistance to cheating (claiming credit for work not computed) and incorrect results. Similar results are obtained for sequential tasks through a strategy of sharing the computation of N tasks among K>N nodes. In each case, the associated cost is significantly less than the cost of assigning tasks redundantly.
Sponsorship	IEEE Comput. Soc. Tech. Committee on Security & Privacy
Starting Page	216
Ending Page	224
File Size	417304
Page Count	9
File Format	PDF
ISBN	0769519407
ISSN	10816011
DOI	10.1109/SECPRI.2003.1199338
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Large-scale systems Distributed computing Microcomputers Security Internet Supercomputers Costs Concurrent computing Mining industry Distributed power generation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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