Electrical computers and digital processing systems: support – Data processing protection using cryptography – Tamper resistant
Reexamination Certificate
2007-02-13
2007-02-13
Barrón, Jr., Gilberto (Department: 2134)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
Tamper resistant
C713S189000, C713S156000, C726S002000
Reexamination Certificate
active
10046274
ABSTRACT:
Method, system and computer program product for implementing a trusted counter in a personal communication device. In particular, the method, system and computer program product utilizes cryptography and an external, read-write storage device that stores important state information that cannot be modified without detection. Using the present invention, the counter can be implemented in a personal even if state information is stored in an insecure storage device.
REFERENCES:
patent: 4200770 (1980-04-01), Hellman et al.
patent: 4523087 (1985-06-01), Benton
patent: 5544246 (1996-08-01), Mandelbaum et al.
patent: 5590197 (1996-12-01), Chen et al.
patent: 5604787 (1997-02-01), Kotzin et al.
patent: 5621797 (1997-04-01), Rosen
patent: 5623637 (1997-04-01), Jones et al.
patent: 5668878 (1997-09-01), Brands
patent: 5724417 (1998-03-01), Bartholomew et al.
patent: 5754654 (1998-05-01), Hiroya et al.
patent: 5768389 (1998-06-01), Ishii
patent: 5781723 (1998-07-01), Yee et al.
patent: 5841865 (1998-11-01), Sudia
patent: 5857022 (1999-01-01), Sudia
patent: 6009150 (1999-12-01), Kamel
patent: 6009177 (1999-12-01), Sudia
patent: 6018717 (2000-01-01), Lee et al.
patent: 6032260 (2000-02-01), Sasmazel et al.
patent: 6038551 (2000-03-01), Barlow et al.
patent: 6041412 (2000-03-01), Timson et al.
patent: 6075861 (2000-06-01), Miller, II
patent: 6085976 (2000-07-01), Sehr
patent: 6148404 (2000-11-01), Yatsukawa
patent: 6209092 (2001-03-01), Linnartz
patent: 6311171 (2001-10-01), Dent
patent: 6331972 (2001-12-01), Harris et al.
patent: 6351813 (2002-02-01), Mooney et al.
patent: 6358151 (2002-03-01), Enzminger et al.
patent: 6367011 (2002-04-01), Lee et al.
patent: 6609114 (2003-08-01), Gressel et al.
patent: 6690794 (2004-02-01), Terao et al.
patent: 6704872 (2004-03-01), Okada
patent: 6779112 (2004-08-01), Guthery
patent: 6816707 (2004-11-01), Barker et al.
patent: 6842741 (2005-01-01), Fujimura
patent: 2001/0049667 (2001-12-01), Moribatake et al.
patent: 2002/0023208 (2002-02-01), Jancula
patent: 2002/0034302 (2002-03-01), Moriai et al.
patent: 2002/0094090 (2002-07-01), Iino
patent: 19507044 (1996-09-01), None
patent: 0730253 (1996-09-01), None
patent: 1 081 891 (2001-03-01), None
patent: WO 95/19672 (1995-07-01), None
Radek Vingralek, “GnatDb: A small-Footprint, Secure Database System”, Abstract, downloaded print-out, www.star-lab.com.
William Shapiro et al., “How to Manager Persistent State in DRM System,” Abstract, downloaded print-out, www.star-lab.com.
Diffie et al., “New Directions in Cryptography,” IEEE Transactions on Information theory, Nov. 1976.
Antonio Maña et al., “GSM-Ticket: Generic Secure Mobile Ticketing Service”, Gemplus Developer Conference, ′Online!, Jun. 21, 2001, pp. 1-7, XP002322564, Paris, France.
Masayuki Terada et al., “Copy Prevention Scheme For Rights Trading Infrastructure”, Smart Card Research and Advanced Applications. IFIP TC8/WG8. 8 Fourth Working Conference on Smart Card Research and Advanced Applications, Kluwer Academic Publishers, Sep. 22, 2000, pp. 1-20, XP002952420, Bristol, UK.
Oorschot Menezes et al., “Handbook of Applied Cryptography”, CRC Press Series on Discrete Mathematics and Its Applications, 1997, pp. 354-355 and 397-405, XP002322565, Boca Raton, FL, US.
Supplementary European Search Report, dated Apr. 11, 2005.
International Search Report mailed on Feb. 13, 2003, for International Application No. PCT/IB02/04294.
International Search Report mailed on Feb. 14, 2003 in International application No. PCT/IB02/04288.
Menezes et al. “Handbook of Applied Crytography”, CRC Press LLC, 1997, 4 pp.
“Cryptography Terminology”, Electronic Frontiers Australia Inc., http://web.archive.org/web/19970712154033/http://www.efa.org.au/Issues/Crypto/crypto5.ht...6/25/04, 2 pp.
Asokan Nadarajah
Ekberg Jan-Erik
Paatero Lauri
Barrón Jr. Gilberto
Morgan & Finnegan , LLP
Nokia Corporation
Szymanski Thomas M.
LandOfFree
Method, system and computer program product for a trusted... 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, system and computer program product for a trusted..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method, system and computer program product for a trusted... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3885464