Patent · US Active

Strengthened entity identity for digital record signature infrastructure

US10200199B2 · kind B2 · utility

4Cited by

0References

5Claims

0Family size

Assignee

Guardtime IP Holdings Limited · VG

Inventors

Ahto Truu · Tartu, EE
Andres Kroonmaa · Keila, EE

Key dates

Filing date	Dec 26, 2017
Grant date	Feb 5, 2019
Priority date	—
Expiry date	Dec 26, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/50
WIPO fieldDigital communication
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.