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Key interaction method and device

A technology of key interaction and key, which is applied to security devices, secure communication devices, and key distribution, and can solve problems such as transmission of business data and/or signaling messages without a security mechanism

Active Publication Date: 2019-03-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is a problem that when the UE transmits service data and / or signaling messages through the Ud interface, there is no corresponding security mechanism to ensure that the transmitted service data and / or signaling messages are not tampered with. Security protection mechanism for information transmitted on the interface

Method used

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Embodiment Construction

[0221] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0222] Various techniques described herein may be used in a Long Term Evolution (LTE, Long Term Evolution) system. Wherein, the user equipment may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and / or data connectivity to the user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem . The wireless terminal can communicate with one or more co...

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Abstract

Embodiments of the invention disclose a key interaction method and device, and relate to the field of communication. A key can be shared between user equipment establishing a D2D link, so that the information security when the user equipment transmits service data or signaling messages through a Ud interface can be realized. According to the specific scheme, network side equipment obtains a firstkey; and a message containing the first key is sent to the second user equipment, so that the second user equipment uses the first key to protect transmitted information when communicating with the first user equipment through the D2D link. The key interaction method and device is used in the interaction process of data protection keys on the D2D link.

Description

technical field [0001] The present invention relates to the communication field, in particular to a key interaction method and device. Background technique [0002] The Device to Device (D2D) communication provided by the 3rd Generation Partnership Project (3GPP) is a kind of communication in the Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN). ), a communication technology that allows terminals to directly communicate using cell resources. [0003] like figure 1 As shown, user equipment (Use Equipment, UE) can not only communicate through an evolved base station (evolved Node B, eNB), but also directly communicate through an air interface Ud. Wherein, the Ud interface can provide a direct link (D2D link) between different UEs, and the D2D link can directly transmit service data and / or signaling messages between UEs without passing through the eNB. [0004] However, there is a problem that when the UE transm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/04H04L9/08H04W4/70
CPCH04W4/70H04W12/04H04L9/0819H04L63/06H04L63/205H04W12/0431H04W12/041H04W76/14H04L63/061
Inventor 张冬梅陈璟
Owner HUAWEI TECH CO LTD