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:
Jul. 16, 2024
Filed:
Feb. 10, 2022
Applicant:
Guardtime SA, Lausanne, CH;
Inventors:
Denis Firsov, Tallinn, EE;
Henri Lakk, Tartu, EE;
Assignee:
Guardtime SA, Lausanne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/14 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3247 (2013.01); H04L 9/14 (2013.01); H04L 9/3073 (2013.01); H04L 9/3297 (2013.01);
Abstract
Digital signatures are generated for a message using an authentication tree data structure in which nodes are created as needed from a root node. A public and secret key pair is generated using a one-time signature method to form each node, and the secret key of each parent node is used to sign the public keys of its child nodes. Once the secret key of a node has been used in creating a signature for a message, it may be revealed. The signature data structure is unbounded and stateless, and need not be pre-generated and fixed.