Authentication between a cellular phone and an access point of a short-range network
First Claim
1. An authentication method between a short-range wireless network having access points and a mobile terminal within a cellular radio communication network comprising:
- transmitting, from the mobile terminal to a controller through the cellular network, a secret code request including a mobile terminal address and an address of an access point in a zone covered by the mobile terminal,generating a secret code in said controller in response to said secret code request,transmitting from the controller to the mobile terminal a confirming message including the secret code and the access point address which is retrieved from the secret code request,transmitting from the controller to the access point a connection request message including the secret code and the mobile terminal address which is retrieved from the secret code request,requesting a connection from the mobile terminal to the access point designated by the address which is retrieved from the confirming message,generating a session key as a function of the access point address, the mobile terminal address and the secret code retrieved from the confirming message and from the connection request message, andthe access point authenticating the mobile terminal as a function of the session key.
1 Assignment
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Accused Products
Abstract
To render secure a connection between an access point of a short-range network and a mobile terminal within a cellular network while precluding acquisition of a PIN code, a platform transmits a confirming message, including a secret code and the access point address retrieved from a terminal request, to the terminal through the cellular network and a connection request message including the secret code and the mobile terminal address to the access point. The access point authenticates the terminal, or the terminals authenticate each other as a function of a session key determined as a function of the secret code retrieved from the connection request message and from the confirming message.
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Citations
21 Claims
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1. An authentication method between a short-range wireless network having access points and a mobile terminal within a cellular radio communication network comprising:
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transmitting, from the mobile terminal to a controller through the cellular network, a secret code request including a mobile terminal address and an address of an access point in a zone covered by the mobile terminal, generating a secret code in said controller in response to said secret code request, transmitting from the controller to the mobile terminal a confirming message including the secret code and the access point address which is retrieved from the secret code request, transmitting from the controller to the access point a connection request message including the secret code and the mobile terminal address which is retrieved from the secret code request, requesting a connection from the mobile terminal to the access point designated by the address which is retrieved from the confirming message, generating a session key as a function of the access point address, the mobile terminal address and the secret code retrieved from the confirming message and from the connection request message, and the access point authenticating the mobile terminal as a function of the session key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 21)
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- 16. A controller linked to a cellular radio communication network adapted to participate in authenticating a link between a short-range wireless network and a mobile terminal in the cellular network, the controller being arranged to reply to a secret code request transmitted from the mobile terminal and including the address of the mobile terminal and the address of an access point in the zone covered by the mobile terminal, by generating a secret code in response to said secret code request and transmitting (a) a confirming message including the secret code and the access point address retrieved from the secret code request to the mobile terminal through the cellular network and (b) a connection request message including the secret code and the mobile terminal address retrieved from the secret code request to the access point so the mobile terminal can ask for an authentication to the access point designated by the address retrieved from the confirming message as a function of a session key which is determined as a function of the secret code retrieved from the connection request message and from the confirming message.
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19. A method of securing a connection between an access point of a short-range network and a mobile terminal within a cellular network while precluding acquisition of a PIN code, comprising transmitting (a) a confirming message including a secret code and the access point address retrieved from a terminal request to the terminal through the cellular network and (b) a connection request message including the secret code and the mobile terminal address to the access point causing the access point to authenticate the terminal as a function of a session key determined as a function of the secret code retrieved from the connection request message and from the confirming message.
Specification