NDLI: Software Random Number Generation Based on Race Conditions

Content Provider	IEEE Xplore Digital Library
Author	Colesa, A. Tudoran, R. Banescu, S.
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci., Tech. Univ. of Cluj-Napoca, Cluj-Napoca, Romania (Colesa, A.; Tudoran, R.; Banescu, S.)
Abstract	The paper presents a new software strategy for generating true random numbers, by creating several threads and letting them compete unsynchronized for a shared variable, whose value is read-modified-updated by each thread repeatedly. The generated sequence of random numbers consists of the final values of the shared variable. Our strategy is based on the functionality of the operating system's thread scheduler. Different values of the shared variable are obtained because the concurrent threads are preempted at different moments in their execution. We identified some software and hardware factors that make the scheduler generate context switches at unpredictable moments: execution environment, cache misses, the instruction execution pipeline and the imprecision of the hardware clock used to generate timer interrupts. We implemented the strategy on x86 architecture running Linux operating system. The random number sequences obtained pass over 90% of the NIST tests.
Starting Page	439
Ending Page	444
File Size	258778
Page Count	6
File Format	PDF
ISBN	9780769535234
DOI	10.1109/SYNASC.2008.36
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-26
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	software Pipelines Switches hardware clock Yarn URNG Linux Operating systems execution environment Computer architecture NIST Hardware random numbers race conditions Random number generation Clocks
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
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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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