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:
Aug. 18, 1998
Filed:
Sep. 23, 1996
Applicant:
Inventors:
Lidong Chen, Sunnyvale, CA (US);
Charles S Williams, Cupertino, CA (US);
Assignee:
Cylink Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ; H04L / ;
U.S. Cl.
CPC ...
380 25 ; 380 21 ; 380 23 ; 380 30 ; 380 44 ; 380 49 ;
Abstract
A public key sterilization scheme for thwarting possible attacks based on choosing malicious public keys. A first user sends public key information to a certificate authority. The certificate authority manipulates the public key information, and sends certified version of the public key information to the first user. The first user verifies the certified key, and calculates a second private key.