Patent · US Active

System and method for generating data signatures over non-continuously bidirectional communication channels

US11184176B2 · kind B2 · utility

0Cited by

4References

7Claims

0Family size

Assignee

Guardtime SA · CH

Inventors

Henri Lakk · Tartu, EE
Ahto Truu · Tartu, EE

Key dates

Filing date	Dec 17, 2019
Grant date	Nov 23, 2021
Priority date	—
Expiry date	Dec 17, 2039

Classification

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

Abstract

During a period of uni-directional, device-to-collector communication, a digital signature is created for at least one data set based on a public key, which is computed from at least one time-bound secret key. When collector-to-device communication becomes available, the collector signals to the device that the current data collection period may end, at which point the time-bound secret key(s) previously used may be revealed but are not longer usable.

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