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. 22, 2018
Filed:
Feb. 10, 2015
Applicant:
Thomson Licensing, Issy de Moulineaux, FR;
Inventors:
Marc Joye, Fougeres, FR;
Benoit Libert, Lyons, FR;
Assignee:
Thomson Licensing, Issy-Ies-Moulineaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/62 (2013.01); H04L 9/32 (2006.01); H04L 9/00 (2006.01); H04L 9/08 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3255 (2013.01); H04L 9/008 (2013.01); H04L 9/085 (2013.01); H04L 9/3073 (2013.01); H04L 9/3247 (2013.01);
Abstract
In one embodiment, it is proposed a signing method delivering a partial signature associated with a message, said partial signature being used in a threshold signing method, the signing method being executed on an electronic device. Such signing method is remarkable in that it comprises signing a hash of said message with a one-time linearly homomorphic structure preserving signature method with a partial secret key, said partial secret key being obtained from an output of a secret sharing scheme, and said signing delivering said partial signature associated with said message.