Authentication of a message source

Details Authentication of a message source Authentication of a message source

1997-03-10

1998-05-19

Cangialosi, Salvatore

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 4, 342357, H04L 900

Patent

active

057546576

ABSTRACT:
Methods for authentication or validation of the location of a putative source (ps) of a message, using time varying location determination (LD) signals that are received from J sources (J>1) of LD signals G(t;j;ps) that are spaced apart from the putative source. The putative source forms an augmented data signal that includes the original message, one or more ;j;ps).vertline.t.sub.k(m) .ltoreq.t.sub.r .ltoreq.t.sub.k(m+1) } of the LD signals for a selected time interval, a putative source asserted location L(t".sub.k(m) ;ps) for a time t".sub.k(m) in the selected time interval, and other identifying parameters. The augmented data signal is received by a central station that analyzes the LD signal segments and determines whether the asserted location L(t".sub.k(m) ;ps) is likely to be the true message source location. Part or all of the augmented data signal can be encrypted for transmission. One application is validation of use of licensed software on a computer whose location may be mobile. Another application is validation of votes cast from a plurality of remote voting sites.

REFERENCES:
patent: 3665086 (1972-05-01), Magee
patent: 4418425 (1983-11-01), Fennel et al.
patent: 4463357 (1984-07-01), MacDoran
patent: 4709266 (1987-11-01), Hanas et al.
patent: 4860352 (1989-08-01), Laurance et al.
patent: 4887296 (1989-12-01), Horne
patent: 4916737 (1990-04-01), Chomet et al.
patent: 4972431 (1990-11-01), Keegan
patent: 4993067 (1991-02-01), Leopold
patent: 5045861 (1991-09-01), Duffet-Smith
patent: 5115467 (1992-05-01), Esserman et al.
patent: 5191613 (1993-03-01), Graziano et al.
patent: 5221925 (1993-06-01), Cross
patent: 5237612 (1993-08-01), Raith
patent: 5243652 (1993-09-01), Teare et al.
patent: 5247575 (1993-09-01), Sprague et al.
patent: 5276735 (1994-01-01), Boebert et al.
patent: 5321753 (1994-06-01), Gritton
patent: 5323322 (1994-06-01), Mueller et al.
patent: 5343529 (1994-08-01), Goldfine
patent: 5347580 (1994-09-01), Molva et al.
patent: 5349459 (1994-09-01), Reed
patent: 5363448 (1994-11-01), Koopman et al.
patent: 5379224 (1995-01-01), Brown et al.
patent: 5382957 (1995-01-01), Blume
patent: 5384846 (1995-01-01), Berson et al.
patent: 5388158 (1995-02-01), Berson et al.
patent: 5535278 (1996-07-01), Cahn et al.
B. Hoffman-Wellenhof et al, Global Positioning System, Springer Verlag, 1994, pp. 20, 77-79, 86-87.
GPS Interface Control Document ICD-GPS-200, Rockwell International Corp., Satellite Systems Division, Revision B-PR, Jul. 3. 1991.
Tom Logsdon, The NAVSTAR Global Positioning System, Van Nostrand Reinhold, New York, 1992, pp. 1-90.
Loran-C User Handbook, Department of transportation, U.S. Coast Guard, Commandant Publication P16562.5, Nov. 18, 1992 (ISBN 0-16-041594-2).

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