Excavating
Patent
1994-10-24
1995-08-15
Beausoliel, Jr., Robert W.
Excavating
371 224, 380 29, G01R 3128, G06F 1100, H04L 900
Patent
active
054426456
ABSTRACT:
The invention relates to a method and apparatus for checking the integrity of a message such as a program and/or data against an original message supposed to correspond to it.
By using an algorithm (A) on at least part of the original message, at least one signature (S1, S2, . . . Sm) of this part is calculated and memorized in a memory area (10) of a portable object (1) which also has processing circuits (11) able to implement algorithm (A). In order to check the integrity of a message, at least one signature of a message part is calculated by the processing circuits (11) of the portable object by implementing the algorithm (A) and is compared to an original message signature supposed to correspond, and memorized in memory area (10).
REFERENCES:
patent: 4438824 (1984-03-01), Mueller-Schloer
patent: 4723284 (1988-02-01), Munch et al.
patent: 4802217 (1989-01-01), Michener
patent: 4816654 (1989-03-01), Anderl et al.
patent: 4944007 (1990-07-01), Austin
patent: 4993068 (1991-02-01), Piosenka et al.
patent: 5081626 (1992-01-01), Scott
patent: 5097504 (1992-03-01), Camion et al.
Smartcards Outsmart Computer Crime, Ken J. Fifield, Computer & Security, vol. 8 (1989) pp. 247-255.
Oisel Andre
Ugon Michel
Beausoliel, Jr. Robert W.
Bull CP8
Tu Trinh
LandOfFree
Method for checking the integrity of a program or data, and appa does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for checking the integrity of a program or data, and appa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for checking the integrity of a program or data, and appa will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2188608