Invention Grant
- Patent Title: Digitally certified stationery
- Patent Title (中): 数码认证文具
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Application No.: US11567707Application Date: 2006-12-06
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Publication No.: US07996677B2Publication Date: 2011-08-09
- Inventor: Denis X. Charles , Kamal Jain , Kristin E. Lauter
- Applicant: Denis X. Charles , Kamal Jain , Kristin E. Lauter
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Lee & Hayes PLLC
- Main IPC: H04L9/32
- IPC: H04L9/32

Abstract:
Systems and methods for digitally certified stationery are described. In one aspect, a stationery granting authority (SGA) receives a request from a user to generate a document. If the user is authorized for the requested document, the SGA generates a certificate with credentialing information from data in the request. The SGA generates a first digital signature from some of the credentialing information. The SGA communicates the certificate to the user for editing and distribution as the document. A recipient of the document determines whether the document is “official” by contacting a specified service to provide certain information from the document. The verification service computes a second digital signature from the provided information for comparison to the first digital signature. If there is a match, the service notifies the recipient that the document is valid/official. Otherwise, the recipient is notified that the document is not valid.
Public/Granted literature
- US20080141330A1 Digitally Certified Stationery Public/Granted day:2008-06-12
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