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:
Feb. 05, 2019
Filed:
Dec. 26, 2017
Applicant:
Guardtime Ip Holdings Limited, Tortola, VG;
Inventors:
Ahto Truu, Tartu, EE;
Andres Kroonmaa, Sauevald, EE;
Assignee:
Guardtime Holdings Limited, Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/14 (2006.01); H04L 9/06 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3247 (2013.01); H04L 9/0643 (2013.01); H04L 9/14 (2013.01); H04L 9/30 (2013.01); H04L 9/3236 (2013.01); H04L 9/3239 (2013.01); H04L 9/3242 (2013.01); H04L 9/3297 (2013.01); H04L 2209/38 (2013.01);
Abstract
At least one node in a distributed hash tree verification infrastructure is augmented with either a function of a signature of a child computational node, or of a child entity attestation value derived from an HMAC value of the child entity, or both. A data signature, which includes parameters for recomputation of a verifying value, and which is associated with a digital input record, will therefore also include data that identifies at least one child entity in the hash tree path used for its initial registration in the infrastructure.