Adaptive retransmission and signature segmented embedding data transmission method

Abstract

The invention discloses an adaptive retransmission and signature segmented embedding data transmission method, which is characterized by comprising the following steps of: matching the identity information of a user in a safety database by using a server, and finishing the method if the identity information of the user fails to be matched; performing mutual identity authentication on the user and the server, and finishing the method if the mutual identity authentication of the user and the server fails; and performing data transmission, and in a data transmission process, performing the steps of performing dynamic identity authentication on the server and the user at random time intervals, terminating connection if the dynamic identity authentication of the server and the user fails, embedding a signature in a segmented way, judging whether transmitted data has an error or is lost or not in an acknowledgement way, performing data retransmission if the transmitted data has the error or is lost, judging whether the data transmission is finished or not, and terminating the connection when the data transmission is finished.

Description

technical field [0001] The invention relates to a network data transmission method, in particular to a data transmission method of self-adaptive retransmission and segment embedded signature. Background technique [0002] Public wireless network is widely used in the field of long-distance data transmission because of its wide coverage and low construction cost. However, due to the essential properties of the wireless network, the reliability of its network is far less than that of the wired network, and its signal quality is easily affected by external factors such as the environment. This kind of network reliability problem is mainly manifested in the weak signal or the problem of the data network itself. As a result, it is impossible to dial into the mobile communication data network or the dropout rate after dialing is relatively high, and the network has a large number of users, especially in some hotspot areas, and network congestion is likely to occur during the peak ...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic and foreign research on data transmission performance optimization based on public wireless networks mainly includes the following two aspects. One is to improve network performance by replacing high-performance network facilities and increasing network bandwidth. However, this method greatly increases the cost of network construction. , nor can it solve the problem from the root cause; one is to strengthen the security of data transmission through data encryption. Although the encryption algorithm can guarantee the safe transmission of data, due to the lack of identity authentication, electronic spoofing cannot be avoided, and it also greatly increases the computational complexity. Complexity, which reduces the efficiency of data transmission

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