| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that two hosts connected to the same access node generate the same interface identifier such that the same IP address may be generated occasionally. SOLUTION: The present invention relates to a method of operating nodes so as to make an IP address correspondent to a node connected to an IP network, the IP address comprising a routing prefix and an interface identifier part, and each node including a pair of public key and private key. The method includes the steps of: using a one-way coding function to associate a plurality of data components each including the public key in the part of public key and private key with each other, so as to generate the interface identification part; and generating a certificate that has the interface identification part and a public key and signed with the public key in the pair of public key and private key. Since the certificate can be authenticated using the public key that the node includes, and contents of the certificate are used to reconstruct an interface identifier, thereby verifying the ownership of the interface identifier. COPYRIGHT: (C)2009,JPO&INPIT
|
