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:
Nov. 20, 2018
Filed:
Sep. 06, 2017
Applicant:
Private Giant, Orlando, FL (US);
Inventors:
Shaun Murphy, Orlando, FL (US);
Charles Murphy, Sarasota, FL (US);
Richard Johnson, Briarcliff Manor, NY (US);
Assignee:
Private Giant, Orlando, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 12/58 (2006.01); H04L 9/08 (2006.01); H04L 9/30 (2006.01); H04L 12/741 (2013.01);
U.S. Cl.
CPC ...
H04L 51/12 (2013.01); H04L 9/08 (2013.01); H04L 9/30 (2013.01); H04L 45/745 (2013.01); H04L 51/08 (2013.01); H04L 51/14 (2013.01); H04L 51/18 (2013.01);
Abstract
An access-control device that controls access to encrypted messages. During operation, the access-control device can receive an access key for a corrupted message, and can receive a cover message digest associated with the corrupted message. The access-control device stores the access key in association with the cover message digest, and stores the cover message digest in a block chain. A respective block of the block chain includes at least one cover message digest, and a hash value of a previous block of the block chain.