Browse Prior Art Database

Personal Mobile Master Key Management System

IP.com Disclosure Number: IPCOM000173337D
Published in the IP.com Journal: Volume 8 Issue 8A (2008-08-12)
Included in the Prior Art Database: 2008-Aug-12
Document File: 4 page(s) / 91K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

When controlling access to buildings, cars, rooms and other kinds of physically protected areas, usually, mechanical key systems are used. The problem with mechanical and even electronic key systems is the lack of interoperability, common usability and a central intelligence for key management. The user is generally confronted with a number of single solutions that require a significant effort for the owner in terms of handling and manageability. An example is the handling of different bunches of keys for the use in different environments and by different people. Therefore, it is of interest to provide a one-key-for-any-purpose solution that is programmable and, in case of physical loss or misuse, can be exchanged rapidly and without significant cost.

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Personal Mobile Master Key Management System

Idea: Manfred Schaefer, PhD, DE-Munich; Robert Seidl, DE-Munich

When controlling access to buildings, cars, rooms and other kinds of physically protected areas, usually, mechanical key systems are used. The problem with mechanical and even electronic key systems is the lack of interoperability, common usability and a central intelligence for key management. The user is generally confronted with a number of single solutions that require a significant effort for the owner in terms of handling and manageability. An example is the handling of different bunches of keys for the use in different environments and by different people. Therefore, it is of interest to provide a one-key-for-any-purpose solution that is programmable and, in case of physical loss or misuse, can be exchanged rapidly and without significant cost.

In the following, a PMKMS (Personal Mobile Master Key Management System) solution is proposed that makes use of the PNM (Personal Network Management) solutions from the 3GPP (3rd Generation Partnership Project). The standards mentioned in TR 23.818 and TS 22.259, which recently arose in 3GPP, address PNM solutions in the 3GPP and IMS (IP Multimedia Subsystem, IP: Internet Protocol) context. These new contributions can provide a personal network management solution for 3GPP devices. The aim in this context is to integrate SIM (Subscriber Identity Module) based devices in a PAN (Personal Area Network) containing devices that are controlled and owned by an individual subscriber. However, no issues of a locking system are included in the mentioned standards. This will be addressed by the proposed solution.

The proposed PMKMS depicted in Figure 1 contains the following entities:

1. MTs (Mobile Terminals)

2. KDs (Key Devices)

3. LDs (Lock Devices)

4. 3GPP core network environment

5. Access networks of different types (e.g. DSL (Digital Subscriber Line), WLAN (Wirless Local Area Network), 3GPP) that are accepted by the 3GPP core network

6. PANM (Personal Area Network Manager) being associated with a subscription

7. PMKMS service and database

8. Locking equipment, e.g. door lock, which is the enforcement part being controlled by the LD.

The MT is equipped with a chip that is SIM card based and subscribed to a 3GPP network. KD and LD are so called sub-devices that have own identities and credentials which are known by the PNM. They belong to a PAN attached to the subscriber owning the MT (SIM based). The identities are related to the SIM of the MT, e.g. derived from SIM based parameters. They can also be based on an internal SIM or other suited security hardware which can be logically attached to the MT.

The KD is a key device that is used to control the LD in a way that it "opens" or "closes" mechanical access equipment, e.g. a door, or it allows or disallows indivi...