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:
May. 27, 1997
Filed:
Sep. 15, 1995
Applicant:
Inventor:
Burton S Kaliski, Jr, San Carlos, CA (US);
Assignee:
RSA Data Security, Inc, Redwood City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K / ;
U.S. Cl.
CPC ...
380 23 ; 380 28 ;
Abstract
A public key escrow system is adapted to have a proof of knowledge protocol for a certificate. The certificate is signed with RSA and is proved using a protocol based on the Guillou-Quisquater proof of knowledge scheme, or other proof of knowledge protocol. Interactive and non-interactive protocols are disclosed.