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:
Dec. 20, 2005
Filed:
May. 04, 2001
Applicant:
Michel Hazard, Mareil sur Mauldre, FR;
Inventor:
Michel Hazard, Mareil sur Mauldre, FR;
Assignee:
CP8 Technologies, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B019/00 ; G06F007/00 ; G08B029/00 ; H04B001/00 ; H04Q001/00 ;
U.S. Cl.
CPC ...
Abstract
A method is described for authenticating a portable object that includes a processor and a memory. The memory contains at least one code defining operations capable of being executed by the portable object, as well as a one-way function. The method comprises an authentication of the portable object which includes sending the portable object an order so that the latter executes a calculation of a result by applying to the one way function at least part of the code. This result enters into the implementation of a given operation, the operation being performed successfully only when the portable object is authentic.