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:
Mar. 04, 2008
Filed:
Jan. 28, 2003
Umut Alev, Redmond, WA (US);
Eldar A. Musayev, Sammamish, WA (US);
Ilia G. Ioffe, Bellevue, WA (US);
Derek E. Denny-brown, Seattle, WA (US);
Umut Alev, Redmond, WA (US);
Eldar A. Musayev, Sammamish, WA (US);
Ilia G. Ioffe, Bellevue, WA (US);
Derek E. Denny-Brown, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
An XML digital signature standard is applied to an XML document to sign it. The XML digital signature is an XML fragment with a specified schema that includes (a) data to describe how the signature should be calculated (e.g., digest methods, filters, and data sources) and (b) actual signature data (e.g., digests and signature values). The data describing how the signature should be calculated (i.e., the 'group (a)' data) is placed inside an XML digital signature template, which is then used (e.g., by an API (application programming interface)) to create the actual digital signature containing the 'group (b)' data.