Unlock instant, AI-driven research and patent intelligence for your innovation.

Digital communication encryption and decryption method and device

A technology for encryption, decryption, and data, which is applied in wireless communication, security devices, electrical components, etc., can solve problems such as low security, and achieve the effect of improving security

Active Publication Date: 2021-04-20
SPREADTRUM COMM (SHANGHAI) CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, a fixed key is used for encryption and decryption communication. Because the encryption and decryption form is relatively simple, the security is not high.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Digital communication encryption and decryption method and device
  • Digital communication encryption and decryption method and device
  • Digital communication encryption and decryption method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] The present invention provides a digital communication encryption and decryption method, which is applied to the sending end, such as figure 1 As shown, the method includes:

[0049] S11. Divide the plaintext data to be sent into pre-processing data and post-processing data;

[0050] S12. Perform a compound operation on the preproces...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a digital communication encryption and decryption method and device. The method includes: dividing the plaintext data to be sent into pre-processing data and post-processing data; performing compound operations on the pre-processing data and first key information to generate a first process key; using the first process key to key to encrypt the post-processing data to generate first encrypted data; perform composite operations on the first encrypted data and the first key information to generate a second process key; use the second process key to Encrypting the preprocessed data to generate second encrypted data; combining the first encrypted data and the second encrypted data into complete encrypted data and sending it to the receiving end. The invention can improve the security of digital communication.

Description

technical field [0001] The invention relates to the technical field of digital communication, in particular to a digital communication encryption and decryption method and device. Background technique [0002] With the rapid development of wireless communication technology, communication security is becoming more and more important. The field of communication security generally involves radio communication, microwave relay communication, satellite communication, telemetry and various data transmissions. In these technical fields, information processing Decryption technology is the core technology of communication security; the so-called encryption is the process of converting readable information called "plaintext" into "ciphertext"; and decryption is the process of restoring "ciphertext" to "plaintext". Through information encryption and decryption technology, people's requirements for keeping their own information and some related materials confidential in network activiti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W12/02
CPCH04L63/0478H04W12/02
Inventor 吕和胜许丰徐敬周
Owner SPREADTRUM COMM (SHANGHAI) CO LTD