Data packet encryption method, data packet decryption method, data packet sending end and data packet receiving end

Abstract

The invention provides a data packet encryption method, a data packet decryption method, a data packet sending end and a data packet receiving end, and relates to the technical field of data encryption. The data packet encryption method comprises the steps that a sending end configures a plurality of scrambling polynomial sequences; an encryption head is set in the data packet of the sending end;wherein the encryption head is a second scrambling polynomial sequence randomly selected from the plurality of scrambling polynomial sequences; and the data packet is encrypted and then the data packet is output. The data decryption method comprises the following steps: receiving a data packet; analyzing an encryption head in the received data packet; wherein the encryption head is a second scrambling polynomial sequence randomly selected from a plurality of scrambling polynomial sequences configured at a sending end; and decrypting the data packet according to the analyzed encryption head. The method can improve the encryption level, is not easy to crack, is simple, is easy to implement, is high in encryption speed, and is good in encryption effect.

Description

technical field [0001] The invention relates to the technical field of data encryption, in particular to a data packet encryption method and decryption method, a data packet sending end and a receiving end. Background technique [0002] With the rapid development of electronic information technology, more and more data are transmitted through the network. In order to ensure the security of data during network transmission, it is necessary to encrypt the data. At present, when encrypting data packets such as video, audio, and network, most of them use the method of generating a pseudo-random sequence, and perform an XOR operation on the input signal and the pseudo-random sequence to generate a pseudo-random encrypted data packet, but this method exists The problem of low security and easy to be broken. For some mature encryption methods that are difficult to crack, they can solve the problem of high encryption security, but there are problems such as slow operation speed and...

AI Technical Summary

Problems solved by technology

At present, when encrypting data packets such as video, audio, and network, most of them use the method of generating a pseudo-random sequence, and perform an XOR operation on the input signal and the pseudo-random sequence to generate a pseudo-random encrypted data packet, but this method exists Low security and easy to be breached

For some mature encryption methods that are difficult to crack, they can solve the problem of high encryption security, but there are problems such as slow operation speed and complex implementation.

Images