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:
Jan. 07, 2003
Filed:
Aug. 23, 2000
Applicant:
Inventors:
Stephen M. Matyas, Manassas, VA (US);
Sean William Smith, Cornwall, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 ;
U.S. Cl.
CPC ...
H04L 9/32 ;
Abstract
Authentication is provided for secure devices with limited cryptography, particularly for devices which do not have the capability to do public-key cryptography and generate random numbers. An initialization process is disclosed for limited-power Devices which are unable to perform public-key cryptography and generate random-numbers, as well as for full-power Devices which have the capability to do public-key cryptography and generate random numbers. A Challenge-Response procedure is also disclosed for ensuring the secure state of a device.