Method for transferring cryptograph in IP video meeting system
A video conferencing system and video conferencing technology, applied in the field of ciphertext transmission in the video conferencing system, can solve problems such as IP video conferencing system upgrades, and achieve the effect of improving adaptability
Active Publication Date: 2004-10-27
ZTE CORP
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[0007] The purpose of the present invention is to overcome the difficulty in upgrading the existing IP video conferencing system in the prior art to provide video, voice, and data ciphertext transmission in the embedded password function module, and it is difficult to jointly form IP video conferencing devices from multiple manufacturers. In view of defects such as IP video conferencing ciphertext transmission in the IP video conferencing system, a method for ciphertext transmission in the IP video conferencing system is proposed
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[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0022] Such as figure 1 As shown, a general IP video conferencing system is composed of a plurality of IP video conferencing devices 1, 2, 3, 4 connected to a communication network 6 through a network access path. The IP video conferencing system uses IP data packets as the transmission bearer layer of video conference signaling and media streams. The IP video conferencing devices 1, 2, 3, 4 may be processor-based dedicated IP video conferencing devices or other computer systems and application devices.
[0023] Such as figure 2 Shown is a schematic diagram of an IP video conference ciphertext transmission system. A plurality of IP video conferencing encryption devices 11, 22, 33, 44 are respectively placed transparently at the front ends of a plurality of IP video conferencing devices 1, 2, 3, 4, and connected to the communication network 6 through an ac...
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Source IP video meeting cryptograph device captures data packets of source IP video meeting device. Base on symmetric cryptography algorithm and symmetric cipher key decided through negotiation with destination IP video meeting device, encryption treating is carried out. Data packets are transferred to destination IP video meeting cryptograph device in cryptograph mode. Destination IP video meeting cryptograph device decrypts the cryptograph, and submits data packets to destination IP video meeting device in plaintext mode. The invention is applicable to new developed and upgraded IP video meeting system as well as IP video meeting system integrated from devices made from multiple manufactures, providing transparent effect for transferring cryptograph in video, voice and data.
Description
technical field [0001] The invention relates to the field of IP (Internet Protocol) video conferencing, in particular to the technology of ciphertext transmission in the video conferencing system. Background technique [0002] With the wide application of video conferencing products, the application environment of video conferencing products has also undergone great changes. Previous video conferencing systems were mainly used in private network environments, and information security issues were not prominent. Therefore, how to ensure the information security of the IP video conferencing system and prevent hackers from invading the IP video conferencing system and causing important business secrets to be stolen has become one of the focuses of customers and manufacturers in the video conferencing market. [0003] The existing IP video conference encryption system solution adopts the method of embedding a cryptographic function module to provide video, voice, and data encrypt...
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IPC IPC(8): H04L9/00H04L9/28H04L29/06H04N7/15
Inventor 李远威芦东昕袁泉林晓翰章小龙
Owner ZTE CORP