Communication system, method for registering a communication relationship and gateway computer
First Claim
Patent Images
1. A communication system, comprising:
- a plurality of communication elements, comprising;
a gatekeeper residing in a first network,a gateway connected to the gatekeeper, anda communication unit residing in a second network, the communication unit connected to the gateway,a request message is sent from the communication unit to the gatekeeper via the gateway in order to establish a trust relationship between the communication unit and the gateway,wherein the gateway checks the authenticity of the request message from the communication unit,wherein the gateway forwards the request message to the gatekeeper after the request message is verified as authentic,wherein the gatekeeper checks that the communication unit is authorized at the gatekeeper in response to receiving the forwarded request message, andwherein when the communication unit is authorized;
the gatekeeper sends a first response message to the gateway indicating a positive authorization, andthe gateway receives the first response message and sends a second response message to the communication unit in response to receiving the first response message, the second response message indicating a positive authorization,wherein the trust relationship is established between the communication unit and the gateway as a result of the request message being verified as authentic and of the communication unit being verified as authorized, andwherein the first communication network and the second communication network are different networks.
1 Assignment
0 Petitions
Accused Products
Abstract
A communication system is proposed which, as its communication elements (KE) has a gatekeeper (GK), a gateway (GW) coupled to the gatekeeper (GK) and at least one communication unit (KEH) coupled to the gateway (GW), with the communication system being set up so that, to register a communication relationship of the communication unit (KEH) in the communication system (KS), a request message (ANF) is transmitted from the communication unit (KEH) via the gateway (GW) to the gatekeeper (GK), which is checked in the gateway (GW) for authenticity and in the gatekeeper (GK) for authorization.
14 Citations
18 Claims
-
1. A communication system, comprising:
-
a plurality of communication elements, comprising; a gatekeeper residing in a first network, a gateway connected to the gatekeeper, and a communication unit residing in a second network, the communication unit connected to the gateway, a request message is sent from the communication unit to the gatekeeper via the gateway in order to establish a trust relationship between the communication unit and the gateway, wherein the gateway checks the authenticity of the request message from the communication unit, wherein the gateway forwards the request message to the gatekeeper after the request message is verified as authentic, wherein the gatekeeper checks that the communication unit is authorized at the gatekeeper in response to receiving the forwarded request message, and wherein when the communication unit is authorized; the gatekeeper sends a first response message to the gateway indicating a positive authorization, and the gateway receives the first response message and sends a second response message to the communication unit in response to receiving the first response message, the second response message indicating a positive authorization, wherein the trust relationship is established between the communication unit and the gateway as a result of the request message being verified as authentic and of the communication unit being verified as authorized, and wherein the first communication network and the second communication network are different networks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for registering a communication relation in a communication system having a plurality of communication elements, the plurality of communication elements including a gatekeeper in a first communication network, a gateway connected a second communication network to the gatekeeper, and a communication unit connected to the gateway, the method comprising:
-
transmitting a request message from the communication unit to the gatekeeper via the gateway in order to establish a trust relationship between the communication unit and the gateway; performing an authentication of the request message by the gateway; forwarding the request message to the gatekeeper when the outcome of the authentication is positive; checking authorization of the communication unit by the gatekeeper in response to gatekeeper receiving the forwarded message; transmitting a response message to the communication unit sending the request message; and establishing a trust relationship between the communication unit and the gateway after a positive authentication of the request message at the gatekeeper and a positive authorization of the communication unit at the gateway; sending a subsequent message after the establishing the trust relationship between the communication unit and the gateway, the subsequent message sent from the communication unit to the gatekeeper using a simple cryptographic method, wherein the first communication network and the second communication network are different networks. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A method for registering a communication relation in a communication system having a plurality of communication elements, the plurality of communication elements including a gatekeeper in a first network, a gateway connected to the gatekeeper in a second network, and a communication unit connected to the gateway, the method comprising:
-
transmitting a request message from the communication unit to the gatekeeper via the gateway in order to establish a trust relationship between the communication unit and the gateway; performing an authentication of the request message by the gateway; forwarding the request message to the gatekeeper when the outcome of the authentication is positive; checking authorization of the communication unit by the gatekeeper in response to gatekeeper receiving the forwarded message; transmitting a response message to the communication unit sending the request message; and establishing a trust relationship between the communication unit and the gateway after a positive authentication of the request message at the gatekeeper and a positive authorization of the communication unit at the gateway, wherein the first communication network and the second communication network are different networks.
-
Specification