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Authentication method between mobile node and home agent in a wireless communication system

  • US 7,065,067 B2
  • Filed: 05/07/2002
  • Issued: 06/20/2006
  • Est. Priority Date: 11/07/2001
  • Status: Active Grant
First Claim
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1. An authentication method for safe communication between a home agent (HA) and a mobile node (MN) in a wireless communication system including the HA, a foreign agent (FA) connected to the MN assigned a Mobile IP address, and first and second servers provided respectively to the HA and the FA for authentication, comprising the steps of:

  • upon receiving a Registration Request message from the MN, generating by the FA an Access Request message and transmitting to the first server through the second server the generated Access Request message;

    upon receiving the Access Request message, generating by the first server an authentication shared key with a preset number by the first server and transmitting to the FA through the second server the generated authentication shared key;

    authenticating by the FA the Registration Request message according to the authentication shared key and transmitting to the HA the authenticated Registration Request message;

    determining by the HA whether the preset number is included in the authenticated Registration Request message; and

    registering by the HA the MN when the preset number is included in the authenticated Registration Request message.

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