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:
Oct. 03, 2023
Filed:
Nov. 28, 2018
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Harm P. Hofstee, Austin, TX (US);
Alexander S. J. Misdorp, Amsterdam, NL;
Zoltan Szlavik, Hoofddorp, NL;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/08 (2006.01); H04L 9/06 (2006.01); H04L 9/40 (2022.01); H04L 9/00 (2022.01);
U.S. Cl.
CPC ...
H04L 9/3297 (2013.01); H04L 9/0637 (2013.01); H04L 9/0643 (2013.01); H04L 9/0825 (2013.01); H04L 9/0861 (2013.01); H04L 9/0891 (2013.01); H04L 9/3247 (2013.01); H04L 63/108 (2013.01); H04L 9/50 (2022.05);
Abstract
A method, computer program product and computer system for trusted timestamping is provided. A processor generates a first key pair, where the key pair includes a public key and a private key. A processor publishes the public key of the first key pair to an immutable data structure. A processor receives a first digital file for timestamping. A processor signs the first digital file with the private key of the first key pair.