Title:
METHOD AND APPARATUS FOR RANDOM BIT-STRING GENERATION UTILIZING ENVIRONMENT SENSORS
Document Type and Number:
WIPO Patent Application WO2003012628
Kind Code:
A3
Abstract:
A random number generator that generates random numbers based on measurements of one or more environmental quantities. The random number generator includes a first sensor for generating a first sequence of digital values representing measurements of a first environmental quantity at successive times. A first compressor that provides a first sequence of compressed values having a lower internal correlation than the values of the first sequence of digital values compresses the sequence of digital values. The random number generator generates an output random number via a circuit for generating a random number from an input sequence of digital values, the input sequence being a function of one of the first sequence of compressed values. The circuit may utilize a hash function to provide further security. In addition, the circuit includes a blocking circuit for preventing the generator from outputting a random number if the input sequences fail a predetermined test.
Inventors:
SEROUSSI GADIEL
SMITH MARK T
BAER MICHAEL
SMITH MARK T
BAER MICHAEL
Application Number:
PCT/US2002/023895
Publication Date:
April 01, 2004
Filing Date:
July 29, 2002
Export Citation:
Assignee:
HEWLETT PACKARD CO (US)
International Classes:
G06F7/58; G09C1/00; (IPC1-7): G06F7/58
Foreign References:
| EP1081591A2 | 2001-03-07 |
Other References:
D.EASTLAKE: "RFC 1750 - Randomness Recommendations for Security", 00.12.1994, XP002253255
"RANDOM NUMBERS PRODUCED VIA A TECHNIQUE EMPLOYING BOTH A WHITE NOISE GENERATOR AND THE DATA ENCRYPTION ALGORITHM", IBM TECHNICAL DISCLOSURE BULLETIN, IBM CORP. NEW YORK, US, vol. 34, no. 7B, 1 December 1991 (1991-12-01), pages 316 - 318, XP000282592, ISSN: 0018-8689
"RANDOM NUMBERS PRODUCED VIA A TECHNIQUE EMPLOYING BOTH A WHITE NOISE GENERATOR AND THE DATA ENCRYPTION ALGORITHM", IBM TECHNICAL DISCLOSURE BULLETIN, IBM CORP. NEW YORK, US, vol. 34, no. 7B, 1 December 1991 (1991-12-01), pages 316 - 318, XP000282592, ISSN: 0018-8689
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