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Processing method and device of IP packet in satellite communication

A technology of IP message and satellite communication, which is applied in the field of communication, can solve problems such as unproposed solutions, and achieve the effect of meeting encryption and QoS requirements

Inactive Publication Date: 2016-04-06
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no effective solution to the problem of how to encrypt IP packets in satellite communications

Method used

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  • Processing method and device of IP packet in satellite communication
  • Processing method and device of IP packet in satellite communication
  • Processing method and device of IP packet in satellite communication

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Embodiment Construction

[0032] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0033] When the IP protocol is applied to satellite communications, satellite communications have certain requirements for data encryption to meet the requirements of secure communications. Therefore, an embodiment of the present invention provides an encryption technology for an IP message in satellite communication, including two parts of encryption and decryption. Since the satellite communication has a relatively high delay requirement, in order to improve the processing speed of the TCP / UDP message, in the embodiment of the present invention, the data part of the TCP / UDP message is encrypted, and the TCP / IP packet header part is transparently transmitted.

[0034] figure 1 It is a flow chart o...

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Abstract

The present invention discloses a processing method and device of an IP packet in satellite communication. The method comprises a step of receiving the signal source data from a first small station sent by a main station, wherein the signal source data comprises a data part and a TCP / UDP header part which is transparent transmission mode data, a step of decrypting the key which is encrypted by a first transmission key carried by the signal source data, wherein the first transmission key is a transmission key corresponding to the first small station, and the key is a key which decrypts the data born by the data part, a step of using a second transmission key to encrypt the key obtained from decryption to obtain the key which is encrypted by a second transmission key, wherein the second transmission key is a transmission key corresponding to the second small station which is the receiver of the signal source data, and a step of replacing the key encrypted by the first transmission key by the key encrypted by the second transmission key, and sending the signal source data which is subjected to replacement processing to the main station. Through the processing method and device of an IP packet in satellite communication, the star-network-shaped IP packet encryption processing is realized.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for processing IP messages in satellite communication. Background technique [0002] Transmission Control Protocol (Transmission Control Protocol, referred to as TCP) is used in satellite communications. Due to certain differences between satellite communications and computer network communications, new problems arise when TCP is applied to satellite communications environments. For example, the high transmission rate of satellite channels Delay, large bit error rate, and unequal bandwidth. [0003] Currently, there is no effective solution to the problem of how to encrypt IP packets in satellite communications. Contents of the invention [0004] Aiming at the problem of encryption of IP message in satellite communication, the present invention provides a method and device for processing IP message in satellite communication, so as to at least solve the above prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 尚丽娜尹俊李新华王新荣李宝明
Owner SPACE STAR TECH CO LTD
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