Method for Authenticating a Mobile Node in a Communication Network
First Claim
1. A method for authenticating a mobile node in a communication network, the communication network comprising at least one proxy server, and a home server, the mobile node and the home server comprising a shared key, the shared key uniquely associating the mobile node with the home server, the method at the mobile node comprising:
- sending a request for an Internet Protocol (IP) address to the at least one proxy server;
receiving a nonce in response to the request, from a proxy server of the at least one proxy server; and
deriving a session key based on the nonce and the shared key, wherein the session key authenticates the mobile node to initiate a secure communication session with the proxy server.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for authenticating a mobile node (102) in a communication network (100) is provided. The communication network includes at least one proxy server and a home server. The mobile node and the home server include a shared key. The shared key uniquely associates the mobile node with the home server. The method at the mobile node includes sending (204) a request for an Internet Protocol (IP) address to at least one proxy server. Further, the method includes receiving (206) a nonce in response to the request, from a proxy server of the at least one proxy server. The method also includes deriving (208) a session key, based on the nonce and the shared key. The session key authenticates the mobile node to initiate a secure communication session with the proxy server.
38 Citations
12 Claims
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1. A method for authenticating a mobile node in a communication network, the communication network comprising at least one proxy server, and a home server, the mobile node and the home server comprising a shared key, the shared key uniquely associating the mobile node with the home server, the method at the mobile node comprising:
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sending a request for an Internet Protocol (IP) address to the at least one proxy server; receiving a nonce in response to the request, from a proxy server of the at least one proxy server; and deriving a session key based on the nonce and the shared key, wherein the session key authenticates the mobile node to initiate a secure communication session with the proxy server. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for authenticating a mobile node in a communication network, the communication network comprising at least one proxy server, and a home server, the mobile node and the home server comprising a shared key, the shared key uniquely associating the mobile node with the home server, the method at a proxy server of the at least one proxy server comprising:
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receiving a request for an Internet Protocol (IP) address from the mobile node; sending the request to the home server; receiving a nonce from the home server; providing the nonce to the mobile node; and receiving a session key from the home server, wherein the session key authenticates the mobile node to initiate a secure communication session with the proxy server. - View Dependent Claims (8, 9, 10)
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11. A system for authentication in a communication network, the system comprising:
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a mobile node communicatively coupled via the communication network to one or more proxy servers and to a home server, wherein the mobile node is configured to send a request for an Internet Protocol (IP) address to the one or more proxy servers, and to receive in response to the request a nonce from a first proxy server of the one or more proxy servers; a shared key stored by the mobile node and by the home server, the shared key uniquely associating the mobile node with the home server; and a session key derived by the mobile node based on the nonce and the shared key, wherein the session key authenticates the mobile node to initiate a secure communication session with the proxy server.
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12. A system for authenticating a mobile node in a communication network, the system comprising:
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a proxy server communicatively coupled via the communication network to a home server and to the mobile node, the proxy server being configured to receive a request for an Internet Protocol (IP) address from the mobile node, to send the request to the home server, to receive a nonce from the home server, to provide the nonce to the mobile node, and to receive from the home server a session key; wherein the mobile node and the home server store a shared key, the shared key uniquely associating the mobile node with the home server; and wherein the session key authenticates the mobile node to initiate a secure communication session with the proxy server.
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Specification