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. 27, 2025
Filed:
Aug. 01, 2021
Applicant:
Ntt Research, Inc., Sunnyvale, CA (US);
Inventors:
Dakshita Khurana, Champaign, IL (US);
Brent Waters, Austin, TX (US);
Assignees:
NTT Research, Inc., Sunnyvale, CA (US);
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0428 (2013.01); H04L 9/0869 (2013.01);
Abstract
Systems, methods, network devices, and machine-readable media disclosed herein perform chosen ciphertext attack secure encryption given any public key infrastructure that has been established with only chosen plaintext attack security. The resulting chosen ciphertext attack secure encryption makes black-box use of the chosen plaintext attack secure scheme and other underlying primitives, and specifically new public keys do not need to be created or distributed.