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Method and device for encryption and decryption of IP message in satellite communication

An IP message, satellite communication technology, applied in the field of communication, can solve problems such as no solutions, and achieve the effect of meeting encryption and QoS requirements

Inactive Publication Date: 2016-02-17
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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  • Method and device for encryption and decryption of IP message in satellite communication
  • Method and device for encryption and decryption of IP message in satellite communication
  • Method and device for encryption and decryption of IP message in satellite communication

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Embodiment Construction

[0024] 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.

[0025] 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.

[0026] figure 1 It is a flowchart of...

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Abstract

The invention discloses a method and device for the encryption and decryption of an IP message in satellite communication. The method comprises the steps: receiving message source data which comprises a data part and a TCP / UDP packet header part; carrying out the encryption of data carried by the data part, and obtaining a ciphertext data part; transmitting the IP message comprising the TCP / UDP packet header part and the ciphertext data part, wherein the TCP / UDP packet header part is not encrypted. According to the invention, the method and device meets the encryption and QoS requirements.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for encrypting and decrypting 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 encrypting IP messages in satellite communications, the present invention provides a method and device for encrypting and decrypting IP messages in satellite communications, so as t...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W12/02
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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