Title:
USING REAL RANDOM NUMBER GENERATOR AS PROOF OF TIME
Document Type and Number:
WIPO Patent Application WO2003042927
Kind Code:
A3
Abstract:
A truly random sequence of bits is transmitted from a transmitter, such that a receiver can receive and store a portion of the transmission for the duration of time that the receiver is within range of the transmitter. Thereafter, the stored sequence in the receiver is compared to a stored copy of the continuous transmission to determine the time that the stored sequence was transmitted. If the sequence of bits is truly random, the security of the system is assured.
Inventors:
EPSTEIN MICHAEL A
Application Number:
PCT/IB2002/004555
Publication Date:
June 10, 2004
Filing Date:
October 30, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
International Classes:
G07C1/10; H04M15/00; H04K1/00; (IPC1-7): G07C1/10; G06F7/58
Domestic Patent References:
| WO2000059250A1 | 2000-10-05 |
Foreign References:
| US20010033657A1 | 2001-10-25 | |||
| US5365585A | 1994-11-15 | |||
| US5781458A | 1998-07-14 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28)
Download PDF:
Previous Patent: DETECTION SYSTEM FOR SURFACE AREAS FOR DETECTING VEHICLES WITH A GPS
Next Patent: FAULT MANAGEMENT SYSTEM FOR GAS TURBINE ENGINES
Next Patent: FAULT MANAGEMENT SYSTEM FOR GAS TURBINE ENGINES