Method and system for authentication of units in a communications network
First Claim
1. A method of granting, to a user communications device, access to a service provided by a plurality of service communications devices, the method comprising the steps ofinitiating a first communications link between the user communications device and a first one of the plurality of service communications devices;
- generating an access key code;
storing a first data item in a first storage means of the user communications device, the first data item indicating the access key code;
characterised in that the access key code is indicative of the user communications device and the service; and
the method further comprises the steps of making the access key code available to at least a second one of the plurality of service communications devices via a communications network;
initiating a second communications link between the user communications device and the second service communications device; and
using the access key code to mutually authenticate the user communications device and the second service communications device.
1 Assignment
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Accused Products
Abstract
A method of granting, to a user communications device, access to a service provided by a plurality of service communications devices where an access key code is generated during an initial communications session between the user communications device and one of the service communications devices. The established access key code is subsequently stored in the user communications device and made available to the service communications devices for use in subsequent communications sessions between the user communications device and any one of the service communications devices. The invention further relates to a communications system and a user communications device.
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Citations
25 Claims
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1. A method of granting, to a user communications device, access to a service provided by a plurality of service communications devices, the method comprising the steps of
initiating a first communications link between the user communications device and a first one of the plurality of service communications devices; -
generating an access key code;
storing a first data item in a first storage means of the user communications device, the first data item indicating the access key code;
characterised in that the access key code is indicative of the user communications device and the service; and
the method further comprises the steps ofmaking the access key code available to at least a second one of the plurality of service communications devices via a communications network;
initiating a second communications link between the user communications device and the second service communications device; and
using the access key code to mutually authenticate the user communications device and the second service communications device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A communications system comprising a user communications device, a first and a second service communications device, the first and second service communications devices each providing a service;
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the user communications device and the first and second service communications devices each including a respective transmit/receive unit for transmitting and receiving data signals via respective communications links between the user communications device and a selected one of the first and second service communications devices;
a selected one of the user communications device and the first service communications device comprising first processing means adapted to generate at least a part of an access key code during an initialisation procedure of a first communications link between the user communications device and the first service communications device, the access key code being indicative of the user communications device and the service;
the user communications device including first storage means adapted to store a first data item indicating the access key code; and
second processing means adapted to retrieve the access key code from the first storage means and to use the retrieved access key code during an authentication procedure of a second communications link between the user communications device and the second service communications device;
the system including a communications network interconnecting the first and second service communications devices and adapted to make the access key code available to at least the second service communications device;
the second service communications device including third processing means adapted to receive the access key code via the communications network and to use the received access key code during the authentication procedure of the second communications link. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A user communications device comprising
a first transmit/receive unit for transmitting data signals to and receiving data signals from selected ones of a plurality of service communications devices providing a service; -
first storage means adapted to store a first data item indicating an access key code generated during an initialisation procedure of a first communications link between the user communications device and a first one of the plurality of service communications devices, the access key code being indicative of the user communications device and the service;
first processing means adapted to retrieve the access key code from the first storage means and to use the retrieved access key code during an authentication procedure of a second communications link between the user communications device and a second one of the plurality of service communications devices. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A communications system comprising a first and a second service communications device each providing a service;
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the first service communications device including a first transmit/receive unit for transmitting data signals to and receiving data signals from a user communications device via a first communications link;
first processing means adapted to perform an initialisation procedure of the first communications link, the initialisation procedure including the generation of an access key code indicative of the user communications device and the service;
the system including a communications network interconnecting the first and second service communications devices and adapted to make the access key code available to at least the second service communications device;
the second service communications device including a second transmit/receive unit for transmitting data signals to and receiving data signals from the user communications device via a second communications link;
second processing means adapted to receive the access key code via the communications network and to use the received access key code during an authentication procedure of the second communications link. - View Dependent Claims (25)
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Specification