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:
May. 15, 2012
Filed:
Feb. 24, 2010
Applicant:
Craig B. Gentry, Mountain View, CA (US);
Inventor:
Craig B. Gentry, Mountain View, CA (US);
Assignee:
NTT DoCoMo, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/14 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and systems are provided for generating and verifying signatures of digital messages communicated between signers and verifiers. Using bilinear mappings, such as Weil or Tate pairings, these methods and systems enable generation and verification of efficient multisignatures, identity-based ring signatures, hierarchical proxy signatures, and hierarchical online/offline signatures.