A data message processing method based on the same local area network

Abstract

The invention discloses a data message processing method based on the same local area network, which relates to the technical field of the data message processing method in the local area network. Themethod includes the following steps: the sending node obtains the IP address of the receiving node from the node list; the network server transfers the current time of the system to the sending node;the network server transmits the second ciphertext to the receiving node; the receiving node compares whether the first ciphertext and the second ciphertext are correct or not; if yes, the message content is obtained; if not, step 7 is executed ; the receiving node transmits a message and receives a failure signal to the network server; the network server transmits the reception failure signal tothe sending node, and performs step 1. The Internet server, the sending node and the receiving node verify the message header through the first encryption algorithm and the second encryption algorithm, thereby realizing the secure encryption of the data message in the same LAN, avoiding the information leakage caused by the network hacker intercepting the message from the sending node to the receiving node, and improving the security of the information communication in the LAN.

Description

technical field [0001] The invention belongs to the technical field of data message processing methods in a local area network, in particular to a data message processing method based on the same local area network. Background technique [0002] With the rapid development of the Internet and big data, in the promotion and application of computers and the Internet, leaks have occurred frequently, and the safe access of electronic files has received more and more attention. According to data records, more than 70% of most sensitive data are leaked by internal employees from the desktop terminal computers of the internal network system through various transmission, copying and other means. Therefore, it has become an important aspect in the current network security field to prevent potential safety hazards in the LAN, especially to prevent illegal access and disclosure of confidential electronic documents in the LAN. [0003] The present invention is dedicated to inventing a d...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a data message processing method based on the same local area network, through the first encryption algorithm and the second encryption algorithm to jointly verify the message header between the network server, the sending node, and the receiving node, and realize the data message processing in the same local area network Security encryption, which solves the problems of information leakage and poor message security in the existing LAN

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