Method, system and equipment for implementing end-to-end encipher of mobile cluster set call

Abstract

The embodiment of the invention discloses a method for implementing group calling end-to-end encryption for mobile cluster comprising: transmitting session key request to calling encryption module, the session key request carrying group ID of group calling; receiving the session key of group key encryption corresponding to the group ID returned by the encryption module; transmitting the encrypted session key to called mobile station. In the embodiment, end-to-end encryption cluster group calling can be still performed under single station cluster mode or KMC failure or end-to-end encryption application context of through mode; KMC is not needed to participate in session key generation and distribution in end-to-end encryption group calling, which largely reduces load of KMC and calling establishment time delay of end-to-end encryption of cluster group calling.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, system and equipment for realizing end-to-end encryption of mobile cluster group calls. Background technique [0002] End-to-end encryption is the highest level of confidentiality in a dedicated communication system. It is suitable for occasions that have strict requirements on communication security, and it can realize the entire process of communication confidentiality from the sending end to the receiving end. During end-to-end encryption, the system does not participate in the generation and management of keys (encryption algorithms), and only provides transparent transmission channels. [0003] In the cluster network, multiple users can form a user group, each user group has a group number, a user group corresponds to a GK (Group Key, group key), and a user can belong to different groups. When the user prepares the group number, press the PTT (Push To Talk)...

AI Technical Summary

Problems solved by technology

[0011] In the existing technology, it still cannot be performed in the case of a single-station cluster mode (or fault weakening mode) or a KMC failure (or communication interruption between the cluster system and KMC) End-to-end encrypted trunking group call; in addition, end-to-end encrypted group call KMC needs to participate in session key generation and distribution, which greatly increases the load of KMC and increases the call establishment delay of trunking group call end-to-end encrypted

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