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:
Mar. 13, 2001
Filed:
Aug. 19, 1998
Phil J. Bostley, III, Boulder, CO (US);
Raghavan Srinivasan, Boulder, CO (US);
Andrew D. Eckhardt, Boulder, CO (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
The invention provides technology that improves the security of the A-Keys in a wireless communications system. The technology effectively prevents any human access to the A-Keys and eliminates cloning. The invention improves the security and integrity of the wireless communications system. A secure processor exchanges random numbers with a wireless communications device to generate the A-Key. The secure processor then encrypts the A-Key and transfers the encrypted A-Key to an authentication system. When the authentication system generates or updates the SSD, the authentication system transfers the encrypted A-Key and other information to the secure processor. The secure processor decrypts the A-Key and calculates the SSD. The secure processor transfers the SSD to the authentication system for use in authenticating the wireless communications device.