Patent · US Active

Method and programmable hardware security module

US11303440B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hans Aschauer · Eferding, AT
Daniel Schneider · Munich, DE
Rainer Falk · Poing, DE

Key dates

Filing date	Dec 28, 2017
Grant date	Apr 12, 2022
Priority date	—
Expiry date	Jan 28, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3263
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A programmable hardware security module, a method for securing a private key of a cryptographic key pair, and a method for securely providing a private key of a cryptographic key pair on a programmable hardware security module, wherein with the described devices and methods, a decentralised PKI is built, via which device keys and device certificates can be generated and target devices can be provided securely, where in this regard, the key-pair-specific transport key plays a central role in protecting the generated private key that is to be transferred, and where this is linked to the particular key pair intended for a target device via a key derivation from a master key utilizing a key-pair-specific derivation parameter.

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