| 摘要 |
A method and Mobility Anchor Point (MAP) are provided for authenticating an update message received at the MAP from a Mobile Node (MN). A table entry is created in the MAP, following receipt of a first message comprising a public key of the MN, a first pointer and a first comparison data, information elements received from the first message being stored in the table entry. The MAP then receives an update message requesting binding of a Local Care-of Address (LCoA) with a Regional Care-of Address (RCoA). The update message further comprises a second pointer and a second comparison data. The MAP locates the table entry by use of the second pointer. The MAP then authenticates the second message by hashing one of the first or second comparison data and comparing a result of the hashing with the other one of the first and second comparison data. If a match is found, the second message is authenticated and the MAP binds the LCoA and the RCoA by storing both addresses in the table entry.
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