Method for negotiating key share between user and peripheral apparatus

Abstract

This invention relates to user UE and outside negotiation common key method, which comprises the following steps: a, outside device sends connection demands to UE portable with outside device label; b, UE tests valid part BSF common keys, outside device to compute first local interface common key according to UE and executive deification; c, by network side and according to UE and BSF common key getting said outside label to compute second local interface common key with first local interface to provide outside devices.

Description

technical field The invention relates to the technical field of 3GPP general authentication framework (GAA), in particular to a method for negotiating a shared key between a user (UE) and a peripheral device. Background technique In the third-generation wireless communication standard, the general authentication framework (GAA) is a general structure used by various application service entities to complete the verification of user identities. Check and verify identity. The various application services mentioned above may be multicast or broadcast services, user certificate services, instant information provision services, etc., or proxy services. Figure 1 shows the structure of the general authentication framework. The general authentication framework is usually composed of the user (UE), the entity (BSF) that performs the initial check and verification of the user identity, the user home network server (HSS) and the network service application entity (NAF). The BSF is u...

AI Technical Summary

Problems solved by technology

However, there is no better way to protect this information at present, because it is impossible to pre-save and store all peripheral information in the UE because the user cannot predict which devices will access the UE when purchasing a UICC card or UE. The shared key of the device, since there is no corresponding protection key with the peripheral device to transmit information, it is difficult to encrypt and transmit the information between the UE and the peripheral device

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