Patent · US Active

Method and server for providing transaction keys

US10396989B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

GIESECKE+DEVRIENT MOBILE SECURITY GMBH · DE

Inventors

Lauri P. Pesonen · Helsinki, FI
Ulrich Weinert · Herzogenaurach, DE
Jarmo Mikael Kaikkonen · Espoo, FI
Jay Graver · Newmarket, CA

Key dates

Filing date	Nov 9, 2015
Grant date	Aug 27, 2019
Priority date	—
Expiry date	Apr 26, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2463/062
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method and a server for providing transaction keys for a transaction system includes transaction units which use pre-delivered transaction keys, and are provided by a key provisioning server and wherein the transaction key usage is checked by a transaction checking server. A transaction key is derived from a master key of a transaction unit, wherein a varying derivation parameter is used in the step of deriving. The step of deriving comprises a first sub step of deriving a key from the master key and a second sub step of deriving the transaction key from the derived key. The first sub step or the second sub step of deriving is performed dependent on a security level of the transaction unit.

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