Data transmission method based on direct communication

By introducing an aggregated security gateway and a key server, and using the hash calculation of device identity and network access code for identity authentication and dynamic management of communication keys, the problems of complex key management and cumbersome authentication process in direct terminal communication are solved, and efficient, reliable and secure communication is achieved.

CN121908270APending Publication Date: 2026-04-21MATRICTIME DIGITAL TECH CO LTD
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Patent Information

Application Number
CN202610200556.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-11
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In direct terminal communication, existing technologies lack a unified key distribution mechanism and identity authentication system, resulting in complex key management, cumbersome authentication processes, and difficulty in maintaining communication continuity and security in dynamically changing network topologies.

Method used

By introducing an aggregated security gateway and a key server, identity authentication is performed through hash calculation of device identity and network access code, topology connection relationship is established, and communication keys are dynamically managed to ensure secure communication between terminals.

Benefits of technology

It enables efficient and reliable communication between terminals, ensures the trustworthiness of identities and the security of keys, optimizes the utilization of system resources, reduces security risks, and enhances the security and reliability of the communication process.

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Abstract

The invention discloses a direct communication-based data transmission method, which comprises the following steps that: each of a plurality of terminals initiates an identity authentication request to an aggregation security gateway, the aggregation security gateway constructs a topological connection relationship based on the terminals passing the identity authentication, and the terminals establish connection according to the topological connection relationship to form a communication network; the method comprises the following steps: in a communication network, acquiring a symmetrical communication key file 1 from a key server by two mutually connected terminals through an aggregation security gateway; the sending terminal determines a communication route, processes the service data mes, generates a sending data packet MES and sends the sending data packet MES to the receiving terminal; the receiving terminal carries out decryption and verification operation on the sending data packet MES, after verification is passed, service data mes' are obtained, and service processing operation is executed. A full-link safety guarantee system from identity authentication, connection establishment, secret key management to data transmission is built, and essential improvement of safety is achieved while high communication efficiency is guaranteed.
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