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. 21, 2026
Filed:
May. 29, 2024
Applicant:
Digicert, Inc., Lehi, UT (US);
Inventor:
Avesta Hojjati, Austin, TX (US);
Assignee:
DigiCert, Inc., Lehi, UT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/60 (2013.01);
U.S. Cl.
CPC ...
G06F 21/602 (2013.01);
Abstract
Tracking hash-based signatures using a distributed ledger includes, subsequent to generating a plurality of one-time signatures (OTSs) organized in a Merkle tree for use in a stateful hash-based digital signature scheme, receiving a request for a digital signature based therein; obtaining an OTS from the plurality of OTSs based on checking the distributed ledger; and creating a transaction on the distributed ledger based on the request to mark the OTS as used. The stateful hash-based digital signature scheme can be Leighton-Micali Signature (LMS) or extended Merkle Signature Scheme (XMSS).