Method for acquiring media stream key, session equipment and key management function entity

A conversational device and key management technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as non-existence, user loss, user confidential information leakage, etc., to ensure security, improve security, and prevent illegal The effect obtained

Active Publication Date: 2009-11-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, so far, there is no relevant technology for how to ensure the security of the media plane in the IMS network
Since the security of the media plane in the IMS network cannot be guaranteed, the media stream may be obtained illegally during the session of the user using the IMS service, resulting in the tampering or eavesdropping of the user session information, which may cause the leakage of the user’s confidential information and cause serious harm to the user. come to loss, or lead to the decline of user service quality

Method used

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  • Method for acquiring media stream key, session equipment and key management function entity
  • Method for acquiring media stream key, session equipment and key management function entity
  • Method for acquiring media stream key, session equipment and key management function entity

Examples

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Embodiment Construction

[0034] The method for acquiring a media stream key provided by the embodiment of the present invention can be applied in an IMS network. Such as figure 1 As shown, it is a flow chart of Embodiment 1 of the method for obtaining a media stream key in the present invention, which includes the following steps:

[0035] In step 101, the session device acquires a media stream key K from a key management function (Key Management Function, hereinafter referred to as: KMF) entity.

[0036] Step 103, the session device sends the media stream key K obtained from the KMF to the peer session device.

[0037] After the session device obtains the media stream key K from the KMF entity and sends it to the peer session device, the session device and the peer session device can use the media stream key to protect the media stream transmitted during the session during subsequent sessions. For example: Encrypt the media stream, so that the security of the media stream transmitted during the ses...

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Abstract

The embodiment of the invention discloses a method for acquiring a media stream key, session equipment and a key management function entity, wherein the method for acquiring the media stream key comprises the following steps: using the session equipment to acquire the media stream key from a KMF entity; and using the session equipment to send the media stream key to the session equipment at the opposite end. The embodiment of the invention can increase the security of the media stream transmitted by session starting equipment and session receiving equipment in the session process.

Description

technical field [0001] The present invention relates to media encryption technology, in particular to a method for acquiring a media stream key in an IP Multimedia Subsystem (IPMultimedia Subsystem, hereinafter referred to as: IMS) network, a session device and a key management functional entity. Background technique [0002] The IMS is a session initiation protocol (Session Initial Protocol, hereinafter referred to as: SIP)-based, and is a core session control layer of fixed and mobile networks. At present, based on the actual network operation requirements of operators, the 3rd Generation Partnership Project (3rd Generation Partnership Project, hereinafter referred to as: 3GPP) has already implemented the IMS service in the network framework, service quality, interface, protocol, billing and other network Many related specifications have been formulated in terms of interoperability. [0003] However, so far, there is no relevant technology for how to ensure the security o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L9/083
Inventor 何承东张占军
Owner HUAWEI TECH CO LTD
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