Patent · US Active

Establishing secure communication without local time information

US12034875B2 · kind B2 · utility

1Cited by

0References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hans Aschauer · Eferding, AT
Fabrizio De Santis · Munich, DE
Steffen Fries · Baldham, DE

Key dates

Filing date	Mar 31, 2020
Grant date	Jul 9, 2024
Priority date	—
Expiry date	Aug 14, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/0823
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Methods and devices are provided for establishing secure communication between the devices without relying on local time information. According to the methods, a client device, which is going to establish the secure communication to a server device, is provided by the server device with a proof of its integrity. The proof of integrity of the server device is issued by a trusted third party (TTP) to which both devices have a trust relation.

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