Method and device for realizing encrypted message communication

Abstract

The invention provides a method and a device for realizing encrypted message communication. The method comprises the following steps: a first unstructured supplementary service data (USSD) service request from a calling party terminal is received by a secret key center, wherein, the first USSD service request comprises a USSD operation code of the secrete key used for requesting the encrypted message for communication, a calling party terminal identification and a called party terminal identification; the first USSD service request is sent before a calling service request or a short message service request is initiated by the calling party terminal; the first secrete key communicated with the encrypted message is distributed by the secrete key center according to the USSD operation code; the distributed first secrete key communicated with the encrypted message is sent to the calling party terminal and the called party terminal by the secrete key center, thus the encrypted message communication is carried out on the encrypted message and / or the decrypted message of the calling party terminal and the called party terminal.

Description

technical field [0001] Embodiments of the present invention relate to communication technology, and in particular to a method and device for implementing encrypted information communication. Background technique [0002] End-to-end information (voice or data) encryption is a technology for encrypting and decrypting information, which can realize encrypted communication in which information is transmitted in an encrypted manner in the air channel and core network network, which increases the confidentiality requirements of communication and meets the needs of people. The need for communication encryption. The existing implementation method of encrypted information communication is as follows: the calling party terminal first communicates with the called party terminal for general information, and then, the calling party terminal and the called party terminal simultaneously initiate a key request to the key center through a short message, To request to obtain the key (encrypt...

AI Technical Summary

Problems solved by technology

[0003] However, due to the low real-time nature of short message sending and short message reception, the calling party terminal and the called party terminal may not be able to obtain the key at the same time, resulting in a long switching time from ordinary information communication to encrypted information communication , it is easy for any terminal to give up the encrypted information communication, thereby reducing the success rate of encrypted information communication

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