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Key acquisition method and device

An acquisition method and key technology, applied in the field of communication, can solve problems such as low efficiency

Active Publication Date: 2021-10-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a lack of methods on how to address to the correct AUSF in the prior art, resulting in the inefficiency of the key agreement process between the UE and the AF mentioned above

Method used

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  • Key acquisition method and device

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Embodiment Construction

[0072] The terms "first", "second", "third" and "fourth" in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

[0073] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring t...

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Abstract

Disclosed are a key acquisition method and device, the method comprising: a user equipment (UE) generating a key identifier (KID), the KID comprising a home network identifier, routing information and an output result; and the UE sends an application session establishment request to an application function network element AF, the application session establishment request comprising the KID. The embodiment of the invention discloses a method for generating a KID, so as to address a corresponding network element according to the KID, enable an AF to obtain key information, complete the establishment of an application session with user equipment according to the obtained key information, and improve the efficiency of establishing the application session.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a key acquisition method and device. Background technique [0002] In the key architecture of application authentication and key management (Authentication and Key Management for Applications, AKMA), the user equipment (User Equipment, UE) and the network side generate respective keys. On the network side, after the UE completes the primary authentication, the authentication server function (Authentication SeverFunction, AUSF) can AUSF Generate AKMA key K AKMA , K AKMA is the key of perUE granularity (that is, each UE has its own unique K AKMA ). AUSF will generate K AKMA Passed to the AKMA anchor function (AKMAAnchor Function, AAnF). AAnF again according to K AKMA Generate application key K for an application function (Application Function, AF) AF . K AF It is a per UE, per application granularity key (that is, a UE uses a dedicated K when accessin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/041H04W12/0431H04W12/08H04W76/11
CPCH04W76/11H04W12/08
Inventor 李飞何承东
Owner HUAWEI TECH CO LTD