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Multimedia subsystem and apparatus and method for establishing channel

A multimedia subsystem and channel establishment technology, which is applied in the field of multimedia subsystem and channel establishment, can solve the problems of P-CSCF resource exhaustion, troublesome use of users, time extension, etc., to ensure consistency, reduce burden, and prevent being The effect of wiretapping

Inactive Publication Date: 2008-06-25
张金砚
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Problems solved by technology

[0003] Since the establishment of a TLS link is separated from the registration of SIP signaling in the prior art, a TCP link must be established between the terminal and the P-CSCF before the TLS link is established, and the whole process has a long delay; and since the establishment of TLS and the registration of signaling are separate In the separate process, HTTP Digest authentication is required between the terminal and the P-CSCF during the signaling registration process, and the terminal user must judge the validity of the certificate, which is troublesome for the user; secondly, because the TLS is established first, and then the SIP signal If there are malicious users in the network who only establish TLS and do not transmit SIP signaling, a large number of TLS will be established between the terminal and P-CSCF, which will cause the resource exhaustion of P-CSCF

Method used

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  • Multimedia subsystem and apparatus and method for establishing channel
  • Multimedia subsystem and apparatus and method for establishing channel

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Embodiment Construction

[0029] The invention provides a method for establishing a channel in the multimedia subsystem, the multimedia subsystem, the terminal and the proxy call session control function entity, which can realize the establishment of a PSK TLS link between the terminal and the P-CSCF. The invention carries PSK TSL in the registration message as an optional security strategy, and negotiates the shared key in the process of signaling registration, thereby effectively speeding up the process of PSK TSL and signaling registration.

[0030] The following invention provides detailed examples.

[0031] see figure 1 It is a diagram of an embodiment of a method for establishing a channel in a multimedia subsystem provided by the present invention.

[0032] 101. The terminal sends a registration message to the P-CSCF;

[0033] The registration message sent by the terminal to the P-CSCF includes the security policy of the shared key to realize the security of the transport layer PSKTLS.

[003...

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Abstract

The invention provides a multimedia subsystem, as well as a method and a device for establishing channels, and the invention is used to establish a PSK TLS connection in an IMS subsystem. The invention carries out shared key negotiation during the signaling registration process through an optional security strategy that PSK TSL is carried in the registration information, thereby effectively speeding the PSK TSL and the signaling registration process.

Description

technical field [0001] The invention relates to the communication field, in particular to a multimedia subsystem and a method and device for establishing a channel. Background technique [0002] At present, in many scenarios in a multimedia subsystem (IMS, IP Multimedia Subsystem IP) network, Transport Layer Security (TLS, Transport Layer Security) is used to encrypt Session Initiation Protocol (SIP, Session Initiation Protocol) signaling. In the prior art, when a terminal establishes a TLS with a proxy call session control function entity (P-CSCF, Proxy Call Session Control Function), the idea of ​​separating the registration of SIP signaling from the establishment of TLS is adopted, and the TLS connection is established before registration, and all subsequent SIP messages are sent over this link. [0003] Since the establishment of a TLS link is separated from the registration of SIP signaling in the prior art, a TCP link must be established between the terminal and the P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L29/06
Inventor 侯晓钧孔涛高江海
Owner 张金砚
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