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:
Apr. 03, 2001
Filed:
Nov. 15, 1996
Daniel E. Geer, Jr., Cambridge, MA (US);
Henry R. Tumblin, Malden, MA (US);
Open Market, Inc., Cambridge, MA (US);
Abstract
A system for certifying authorizations includes an authorizing computer and an authorized computer interconnected by a computer network. The authorizing computer creates a public key pair comprising a new public key and a new private key, and creates an authorization certificate that certifies that a holder of the authorization certificate is authorized to perform an action referred to in the authorization certificate. The authorization certificate includes the new public key. The authorizing computer causes the authorization certificate and the new private key to be transmitted to the authorized computer. The authorized computer receives the authorization certificate and the new private key and decrypts messages using the new private key as evidence that the authorized computer has obtained the authorization certificate legitimately.