Method for protecting access security of IP multimedia subsystem based on TLS

A technology for multimedia subsystems and security protection, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve the problems that user terminals do not support the use of certificates, cannot authenticate UE identities, etc., and overcome the problem of weak two-way authentication. simple effect
CN1697368AActive Publication Date: 2005-11-16ZTE CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
ZTE CORP
Publication Date
2005-11-16

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Abstract

In registration process through UE, using IMS AKA protocol to negotiate with P -CSCF, the method discloses uses TLS connect session in TCP connection. Then, the TLS connect session guarantees transmission security of IMS signaling between UE and P -CSCF. Features are: simple implementing procedure, being able to protect access safety of IMS. Comparing with prior art, the invention overcomes issue of weak bi-directional authentication so that attacker is not able to implement intermediator attack.
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Description

technical field

[0001] The present invention relates to the security field of the communication system, in particular, the present invention relates to the protection method of IMS (IP Multimedia Subsystem) access security. Background technique

[0002] IMS is a subsystem supporting IP multimedia services proposed by 3GPP2 in Release 5. It consists of all core network functional entities that can provide multimedia services, including a set of functional entities related to signaling and bearer. These functional entities involve CSCF (Call State Control Function), MGCF (Media Gateway Control Function), MRF (Media Resource Function), and HSS (Home Subscriber Server), etc. IMS is based on the SIP (Session Initiation Protocol) system. SIP is a text-based signaling protocol that works in the client / server mode. IMS uses the SIP call control mechanism to create, manage and terminate various types of multimedia services. In addition to SIP as the core, IMS has wide adaptability t...

Claims

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