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:
Dec. 29, 2009
Filed:
Sep. 17, 2004
Hiroshi Fujimoto, Yokohama, JP;
Takashi Suzuki, Yokosuka, JP;
Takehiro Nakayama, Yokohama, JP;
Atsushi Takeshita, Yokohama, JP;
Hiroshi Fujimoto, Yokohama, JP;
Takashi Suzuki, Yokosuka, JP;
Takehiro Nakayama, Yokohama, JP;
Atsushi Takeshita, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A structured document signature device includes an adaptation policy associator configured to associate each element forming a structured document with an adaptation policy indicating an action which can be adapted to a child element of the element or a value of the element; a hash tree constructor configured to insert a hash value of the child element of the element or a hash value of the value of the element into the structured document as an attribute value of the element, and to construct a hash tree including the hash value; a digital signature adder configured to add a digital signature to a root of the hash tree and the adaptation policy; and an output configured to output the structured document and the digital signature.