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:
Aug. 27, 2019
Filed:
Nov. 20, 2017
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Jan L. Camenisch, Thalwil, CH;
Anja Lehmann, Zürich, CH;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/32 (2006.01); H04L 9/14 (2006.01); H04L 9/08 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3252 (2013.01); H04L 9/006 (2013.01); H04L 9/008 (2013.01); H04L 9/0861 (2013.01); H04L 9/14 (2013.01); H04L 63/0428 (2013.01);
Abstract
A method for cryptographic signing. The disclosure provides for a signature scheme to secure digital communication using homomorphic message encoding functions. The signature may be applied to hidden messages, and the knowledge of a signature can be proved without the value of the signature being revealed. Applications of the present invention may include anonymous credentials, electronic voting, and group signatures.