The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2007
Filed:
Jan. 16, 2002
Applicants:
Nadarajah Asokan, Espoo, FI;
Jan-erik Ekberg, Helsinki, FI;
Lauri Paatero, Helsinki, FI;
Inventors:
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06F 7/04 (2006.01);
U.S. Cl.
CPC ...
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.