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A method of cross-domain transmission

A cross-domain, data packet technology, applied in the Internet field, can solve the problems of low UDP data packet transmission rate, UDP data packet size limitation, poor reliability, etc.

Inactive Publication Date: 2019-03-15
NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When only supporting cross-domain transmission under the UDP protocol, there is a limit to the size of the UDP data packet, and the transmission rate of the UDP data packet in the gatekeeper environment is low and the reliability is poor

Method used

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  • A method of cross-domain transmission
  • A method of cross-domain transmission

Examples

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no. 1 example

[0030] The first embodiment of the present invention provides a method for cross-domain transmission, which is applied to the sending terminal, such as figure 1 As shown, the method includes the following specific steps:

[0031] Step S101: judging one by one whether the information to be sent meets the confidentiality requirements;

[0032] If yes, number the information to be sent, and execute step S102;

[0033] If not, the information to be sent is not numbered.

[0034] Step S102: number each message to be sent in order, and decompose each numbered message to be sent to obtain multiple data packets, and number each data packet in order;

[0035] Specifically, the sequential numbering of each data packet includes the following two methods:

[0036] The first method: take the information to be sent as the unit, and number the data packets in order for any data packet in the information to be sent, for example: number 1 respectively for the 5 data packets in the first inf...

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Abstract

The invention discloses a cross-domain transmission method. The method includes numbering each to-be-sent messages in sequence at a sending terminal, resolving each numbered to-be-sent messages and obtaining a plurality of data packets, and numbering each data packets in sequence; adding packet head information for the first data packet in any to-be-sent message and adding numbering information for other data packets for said to-be-sent message; sending the numbered data packet in the to-be-sent message to a receiving terminal through a UDP (User Data Protocol); receiving the data packet sent from the sending terminal and reconstructing the data packet according to the packet head information or numbering information of the data packet at the receiving terminal so as to form a receiving message. By adopting the method, data feedback amount can be reduced, the transmission rate is improved and the reliability is enhanced.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a method for cross-domain transmission. Background technique [0002] As more and more information systems transfer data through the network, the security and confidentiality requirements of information become more and more important. More and more enterprise organizations improve information security by establishing information security defense systems based on security domains. ability to ensure the safe and reliable operation of information systems. When an enterprise organization divides security domains, it usually divides data and systems with the same security level and attributes into the same security domain. The domain trusts each other and can communicate directly; the information exchange between different security domains needs to be audited, usually through the network The gate performs real-time data interaction and is restricted and controlled by the access ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/00H04L1/16H04L1/18H04L29/06G06F21/60
CPCG06F21/602H04L1/0061H04L1/1657H04L1/1806H04L5/0055H04L63/0428H04L69/164
Inventor 钮艳杜翠兰佟玲玲易立孙旷怡张琳姜宇航赵晓航查奇文
Owner NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT
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