Electrical computers and digital processing systems: support – Computer program modification detection by cryptography
Reexamination Certificate
2008-07-29
2008-07-29
Pezzuto, Robert E (Department: 3714)
Electrical computers and digital processing systems: support
Computer program modification detection by cryptography
Reexamination Certificate
active
07406602
ABSTRACT:
Data generated by certain peripheral devices, such as a coin or bill validator, within a gaming device is encrypted using a randomly generated key transmitted to the peripheral device by a main control unit in the gaming device. The peripheral device sends the encrypted data to the main control unit along with the clear text data. The control unit performs a reverse algorithm to recover the data from the encrypted number. The control unit compares the recovered data to the clear text data. If there is a match, the control unit acts on the data, such as by booking the coin value to a credit meter.
REFERENCES:
patent: 5464087 (1995-11-01), Bounds et al.
patent: 5643086 (1997-07-01), Alcorn et al.
patent: 5674128 (1997-10-01), Holch et al.
patent: 5737418 (1998-04-01), Saffari et al.
patent: 5845069 (1998-12-01), Tanaka
patent: 5918720 (1999-07-01), Robinson et al.
patent: 5953424 (1999-09-01), Vogelesang et al.
patent: 6185316 (2001-02-01), Buffam
patent: 6364769 (2002-04-01), Weiss et al.
patent: 6368219 (2002-04-01), Szrek et al.
patent: 6565443 (2003-05-01), Johnson et al.
patent: 6595856 (2003-07-01), Ginsburg et al.
patent: 6685567 (2004-02-01), Cockerille et al.
patent: 7043641 (2006-05-01), Martinek et al.
patent: 7116782 (2006-10-01), Jackson et al.
patent: 7162036 (2007-01-01), Rowe
patent: 7203841 (2007-04-01), Jackson et al.
European Search Report.
Dhillon Malina
Gauselmann Paul
Ogonowsky Brian D.
Patent Law Group LLP
Pezzuto Robert E
LandOfFree
Authentication of data for a gaming machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Authentication of data for a gaming machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Authentication of data for a gaming machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2815581