| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a high-safety RR (Return Routability) method by blocking a middle attack. <P>SOLUTION: The RR method includes steps of: transferring a HoTI packet from a mobile node 100 to a home agent 150 (S400); transferring a CoTI packet to a corresponding node 200 (S420); transferring the HoTI packet including first key information which is generated by a predetermined scheme in the home agent 150, to a corresponding node (S410); transferring the HoT packet including second key information that is generated by a predetermined scheme in the corresponding node 200, to the home agent (S430); and transferring the CoT packet that is encrypted by using a private key generated from the first key information by a predetermined scheme, to the mobile node (S450). Further, the method includes steps of: transferring the private key that is generated from the HoT packet received by the home agent by using a predetermined scheme, to the mobile node (S440); and decrypting the received encrypted CoT packet by using the private key received by the mobile node 100. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
