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:
Jul. 17, 2007
Filed:
Sep. 03, 2003
Masanori Satake, Ebina, JP;
Takanori Masui, Ebina, JP;
Tatsuhiko Yokohama, Ebina, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A device for facilitating verification of an electronic signature in an exchange of instructions between an in-house server and an outside server. Each server which is to execute a partial process of a cooperative service has, in a key storage unit (), secret keys corresponding to public key certificates issued by an in-house CA and by an outside public CA. A signature key selection unitjudges whether a server which is to execute a process next is a device within or outside the company and selects an in-house secret key when the next server is an in-house device and an outside secret key when the next server is an outside device. A signature creation unit () calculates a value of an electronic signature for an job flow instruction to the next server using the selected secret key. An instruction division/integration unit () transmits to the next server the job flow instruction with the electronic signature value attached.