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Binding and update method and device for mobile node and communication end

A mobile node, communication peer technology, applied in the field of communication, can solve problems such as poor security

Active Publication Date: 2011-08-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0036] The invention provides a binding update method for a mobile node and a communication peer to solve the problem of poor security in the binding update process of the mobile node and the communication peer in the prior art

Method used

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  • Binding and update method and device for mobile node and communication end
  • Binding and update method and device for mobile node and communication end
  • Binding and update method and device for mobile node and communication end

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] This embodiment describes the method that the MN uses the MN's public key to protect the BU message. This method is applicable to the situation where the CN can obtain the MN public key.

[0127] see Figure 4 , is a schematic diagram of a binding update process in Embodiment 1 of the present invention, and the specific steps include:

[0128] 1. The MN sends a HoTI message and a CoTI message to the CN.

[0129] The binding update protection method expected by the MN is carried in the HoTI or / and CoTI message, including the unilateral public key protection mode.

[0130] 2. The CN returns a HoT message and a CoT message to the MN.

[0131] The CN decides to adopt the MN public key protection mode according to the received HoTI message or / and CoTI message, and obtains the MN's public key PK MN (It is also possible to obtain the public key of the MN in advance). Then, CN generates a pseudo-random number Ks, and uses MN's public key PK MN It is encrypted and sent to ...

Embodiment 2

[0144] This embodiment describes the method that the MN uses the MN's public key to protect the BU message. This method is applicable to the situation where the CN can obtain the MN public key.

[0145] see Figure 5 , is a schematic diagram of a binding update process in Embodiment 2 of the present invention, and the specific steps include:

[0146] 1. The MN sends a HoTI message and a CoTI message to the CN.

[0147] The binding update protection method expected by the MN is carried in the HoTI or / and CoTI message, including the unilateral public key protection mode.

[0148] 2. The CN returns a HoT message and a CoT message to the MN.

[0149] The CN decides to adopt the MN public key protection mode according to the received HoTI message or / and CoTI message, and obtains the MN's public key PK MN (It is also possible to obtain the public key of the MN in advance). Then, the CN generates a Home Secret Generation Token and a Care-of Secret Generation Token:

[0150] Hom...

Embodiment 3

[0163] This embodiment describes the method that the MN uses the HA's public key to protect the BU message.

[0164] see Figure 6 , is a schematic diagram of a binding update process in Embodiment 3 of the present invention, and the specific steps include:

[0165] 1. The MN sends a HoTI message and a CoTI message to the CN.

[0166] The MN sends a HoTI message to the CN. After the HA intercepts the HoTI message, it adds a mobile option HAA (Home Agent Address, the address of the home agent), and sends the HoTI message to the CN.

[0167] 2. The CN returns a HoT message and a CoT message to the MN.

[0168] After CN receives the HoTI message, it obtains its public key PK from HA according to HAA HA , and generate a pseudo-random number Ks, and then use HA's public key PK HA It is encrypted and sent to the MN via HoT message.

[0169] The present invention needs to increase a mobile option E{PK in the HoT message HA , Ks}, ​​used to carry the encrypted Ks, and declare th...

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Abstract

The invention discloses a binding update method of mobile node and correspondent node and a binding update device. The method of the invention comprises following steps: parameters which are generated by a correspondent node are encrypted through a secret key then sent to a mobile node or a home agent which proxies binding update of the mobile node; after deciphering the parameters, the mobile node or the home agent utilizes the parameters to generate a binding manage secret key and sends a binding update message to the correspondent node, carries authentication data which is generated by thebinding manage secret key; after authenticating the binding update message, the correspondent node returns a binding confirmation message to the mobile node or the home agent, the binding update is finished. The method of the invention improves the security of a binding update flow in a mobile IPv6 route optimization procedure.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for performing binding update between a mobile node and a communication counterpart. Background technique [0002] With the rapid development of computer network technology and mobile communication computing, there is a higher demand for the mobility provided by the network. RFC (Request for Comments) 3775 proposes a solution to mobility at the network layer—Internet Protocol No. Version 6 (Mobile Internet Protocol version 6, Mobile IPv6). [0003] see figure 1 , is a schematic diagram of components of Mobile IPv6. There are three basic network entities in Mobile IPv6: [0004] Mobile Node (MN): A node that can move from one link to another on the network and still maintain ongoing communication, as long as the home address of the node is known, it can communicate with it; [0005] Correspondent Node (CN): It is the peer node of the mobile node communicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W12/04H04W8/04H04W8/06H04W8/26H04W12/02H04W12/041H04W12/06H04W80/04
CPCH04W8/06H04L63/0428H04L63/08H04W12/06H04W80/04H04W12/02H04L63/123H04W12/108H04W12/106
Inventor 李春强
Owner HUAWEI TECH CO LTD