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:
Apr. 17, 2018
Filed:
Apr. 29, 2014
Applicant:
Thomson Licensing, Issy les Moulineaux, FR;
Inventors:
Marc Joye, Palo Alto, CA (US);
Benoit Libert, Lyons, FR;
Assignee:
Thomson Licensing, Issy-les-Moulineaux, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/30 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/008 (2013.01); H04L 9/3073 (2013.01); H04L 9/3247 (2013.01); H04L 9/3255 (2013.01); H04L 2209/24 (2013.01); H04L 2209/72 (2013.01);
Abstract
A threshold encryption system comprising a sender device configured to generate ciphertexts and at least one entity device configured to perform partial decryption of ciphertexts. The system is based on Cramer-Shoup encryption systems and use linearly homomorphic signatures as publicly verifiable proofs of ciphertext validity.