Method and system of terminal for encrypting videoconference data

Abstract

The invention discloses a method of a terminal for encrypting videoconference data, which comprises the following steps: generating a network authentication token (AUTN) by a terminal in authentication with a videoconference server; carrying random passwords (RAND) by the videoconference server in media format negotiation requests sent to the terminal after the authentication is succeeded; calculating an encryption key by the terminal by combining the AUTN and the RAND; carrying out negotiation of encryption key and encryption calculation with the videoconference server; and carrying out encryption communication between the two parties after the negotiation is unified. The invention also discloses a system of a terminal for encrypting videoconference data. The method and the system can beused for encrypting videoconference data and ensuring the confidential transmission of the videoconference data. Because user names registered in each terminal are different in a videoconference, encryption keys generated by each terminal are different. In the communication between a terminal and a server, the invention can effectively prevent a third party from eavesdropping.

Description

technical field [0001] The invention relates to the video conferencing technology in the communication field, in particular to a method and a system for a terminal to encrypt video conferencing data based on an IP multimedia system (IMS). Background technique [0002] With the development of communication networks, the third-generation digital communication (3G) system is gradually moving closer to the long-term evolution (LTE) system. Therefore, mobile operators need to introduce the framework of the IMS domain to control the existing communication services. IMS-based video Meetings are one of those businesses. [0003] At present, 3G terminals have achieved the ability to access IMS video conferencing, and many operators are also vigorously developing IMS-based video conferencing. IMS video conferencing is a centralized conference, which requires the IMS core network to provide application server support, such as: the service-type call session control function (S-CSCF) en...

AI Technical Summary

Problems solved by technology

IMS video conferencing uses SIP on the control plane. The Third Generation Partnership Project (3GPP) and the Internet Engineering Task Force (IETF) stipulate a variety of authentication and security methods for the transmission of SIP signaling, ensuring that the control plane The security and confidentiality of the transmitted information, but the data of the IMS video conference has not been encrypted in the prior art, that is, the security of the transmitted information on the user plane is not guaranteed. For terminals that illegally access the video conference system, the video conference The audio data and video data in the network will be leaked, and because the IMS belongs to the IP network, if a malicious user captures the entire network on the IP network, the data of the video conference can be easily obtained

It can be seen that the security of existing video conferencing data is not guaranteed

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