Long repeating data encryption and transmission method and system

Abstract

The invention discloses a long repeating data encryption and transmission method and a long repeating data encryption and transmission system, and belongs to the field of data encryption. The method comprises the following steps: a server receives and detects a login message from a client, wherein the login message comprises a user name, a password, a timestamp and a RSA public key of the client; the server dynamically generates a data encryption algorithm data encryption standard (DES) secret key, encrypts the DES secret key by using the RSA public key dynamically generated by the client, and thus generates a RSA encrypted ciphertext; the client decrypts the received RSA encrypted ciphertext and acquires the DES secret key; the client empties RSA secret key pairs; a message transmitted between the server and the client is compressed by using a RLE algorithm, and the compressed message is encrypted by using the DES secret key; and the client / server decrypts the received message by using the DES secret key, and decompresses the decrypted message by using the RLE algorithm.

Description

technical field [0001] The invention relates to the field of data encryption, in particular to a method and system for encrypted transmission of repeated long data. Background technique [0002] With the rapid development of computer communication technology, more and more important information will be transmitted through the network. Therefore, how to ensure the security of communication data transmission in the network has become one of the network security issues that people focus on. , and information security technology using encryption as a means has become the core research point of network security. [0003] In the data encryption transmission technology, the RSA algorithm and the data encryption standard (DES) algorithm have been widely used. Among the above encryption algorithms, although the RSA algorithm is simple in form and strong in confidentiality, its encryption and decryption speed is relatively slow. If the RSA algorithm is used to encrypt and decrypt the...

AI Technical Summary

Problems solved by technology

[0003] In the data encryption transmission technology, the RSA algorithm and the data encryption standard (DES) algorithm have been widely used. Among the above encryption algorithms, although the RSA algorithm is simple in form and strong in confidentiality, its encryption and decryption speed is relatively slow. If the RSA algorithm is used to encrypt and decrypt the entire message, the efficiency is extremely low and cannot meet the actual needs, so it is not suitable for messages with relatively long encrypted information content; although the DES algorithm encrypts and decrypts faster, its key distribution process It is more complicated, and the security of the encryption algorithm is lower than that of the RSA algorithm, so it is not suitable for messages with very important encrypted information

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