A Trusted Mobile Router Selection Method for Multi-homing Mobile Subnet Based on Cloud Trust Model

Abstract

The invention discloses a multi-homing mobile subnet trusted mobile router selection method based on a cloud trust model, which mainly solves the problem that the security trust evaluation in the prior art is too static. The implementation steps are: (1) The mobile router registers and binds at the home agent router; (2) The home agent router monitors and records three behavior information of the mobile router, the load, the number of mobile nodes, and the lifetime; (3) Builds a reflection trust The cloud trust parameter calculation model for evaluating uncertainty; (4) The home agent router calculates the trust value of the mobile router through the cloud trust parameter calculation model according to the above three behavior information; (5) The home agent router securely transmits the mobile node to the mobile node. The trust value of the router; (6) The mobile node selects the mobile router with the largest trust value to access according to the trust value of the mobile router. The invention has the advantages of dynamic trust evaluation and resource saving of mobile devices, and can be used in intelligent transportation and air-space wireless communication.

Description

Technical field [0001] The invention belongs to the technical field of network security, and particularly relates to a method for selecting a trusted mobile router, which can be used to resist malicious behaviors of mobile routers in a multihoming mobile subnet. Background technique [0002] The MIPv6 (Mobile IPv6) protocol provides support for the uninterrupted communication of the mobile node MN during the movement. When the mobile node MN switches from the old access point PAR to the new access point NAR, the handover process will be performed. The mobile node MN needs to obtain a new care-of address CoA from the new access point, and inform the home agent HA that it has obtained the new care-of address CoA by sending a binding update message BU. The home agent HA stores the binding of the mobile node MN's home address HoA and the care-of address CoA in the binding cache, and then sends a binding confirmation message BA to the mobile node MN, and forwards all packets sent to t...

AI Technical Summary

Problems solved by technology

Traditional security mechanisms can resist some external network attacks, such as illegal access, etc., but cannot resist the two threats of malicious behavior of the mobile router itself and abnormal malfunction of the mobile router.

For example, after a mobile router MR is infiltrated and controlled by hackers, it will send false routing advertisement messages to all mobile nodes in the mobile subnet to attract more mobile nodes to access, and then control the mobile router MR to The communication packets of mobile nodes are redirected to a designated malicious node. This malicious node can steal the information in the packet or perform traffic analysis, resulting in the leakage of communication information of multiple mobile nodes in the mobile subnet.

In addition, if a mobile router MR fails, such as a queue error or a large delay, it will cause the packet loss rate of all mobile nodes connected to the mobile router MR to increase, and the delay will increase. If the mobile subnet is a The communication network of the disaster rescue team will cause poor internal and external communication, resulting in delays in rescue timing

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