Method, system, device and terminal for processing secret keys

A processing method and key technology, which is applied to the public key and key distribution of secure communication, can solve the problems of reducing the network security of the access network, and achieve the effect of improving network security and avoiding repeated use
CN101610147AInactive Publication Date: 2009-12-23HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2009-12-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method, a system, a device and a terminal for processing secret keys, wherein the method for processing secret keys comprises the following steps: receiving a handover request message; acquiring a second secret key of a first network according to a first secret key and network parameters of the first network; and sending a handover request message containing the second secret key to a second network. By applying the embodiment of the invention to process the secret keys, when a UE is handed over among different access networks, secret keys of various access networks are ensured to be different before and after handover by inputting network parameters of the access networks in functions for educing the secret keys, thereby the same secret key is repeatedly used in the same kind of access networks, especially the problem that the same kind of access networks are also broken through as a certain access network is broken through when the access networks are handed over in a shorter period, and the network security of the access networks is improved.
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Description

technical field

[0001] The present invention relates to the technical field of communications, in particular to a key processing method, system, device and terminal during network switching. Background technique

[0002] The existing 3GPP (Third Generation Partnership Project, Third Generation Partnership Project) wireless network is divided into two parts according to the network, the wireless access network and the core network; the wireless access network is divided into 2G access network GERAN according to the type , 3G access network UTRAN and LTE ((Long Term Evolution, Long Term Evolution) access network EUTRAN. For example figure 1 Shown is a schematic structural diagram of a 3GPP wireless network, which shows the above three wireless access networks, the core network corresponding to GERAN and UTRAN is PS (packet domain), and the core network corresponding to EUTRAN is SAE (system architecture evolution).

[0003] Taking 3G access network UTRAN and LTE access netwo...

Claims

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