A method of safe data transmission based on sound waves

Abstract

The invention provides a data safety transmission method based on sound waves. A binary storage mode of an original data file is converted into an ASCII coding form from a magnetic disk driver layer;for an ASCII coded file, data is processed by adopting a DES algorithm; 0 and 1 of an encrypted document are represented with sound waves with different duration and the same frequency; data safety transmission is carried out by sound waves which cannot be identified by human ears or are insensitive, first computing equipment produces sound for sound waves generated by the original file by a mainboard buzzer, and second computing equipment receives an audio signal by receiving equipment; and after receiving the audio signal, the second computing equipment recovers the original file according to the reverse process of generating an audio in the first computing equipment. The data safety transmission method disclosed by the invention mainly implements a case of producing the sound by utilizing the buzzer on the computer mainboard to transmit information, enables the transmission process to have concealing and safety, and can also carry out checking on the transmitted data. Meanwhile, inthe information transmission process, normal operation of a user is not influenced.

Description

technical field [0001] The invention relates to a data transmission method, in particular to a method for realizing safe data transmission between computing devices. Background technique [0002] With the development of information technology, people's demand for data transmission anytime and anywhere is becoming more and more urgent. Nowadays, various information transmission methods have appeared in short-distance communication, such as Bluetooth, wifi, infrared, etc. These technologies are widely used today, but it is precisely because these information transmission methods are widely used that the information transmitted through these methods is extremely easy to be intercepted and cracked. For example, the common wifi uses IEEE 802.11n, and since anyone can receive the signal and know the format of its data frame, they can parse some of the information. Even use special software to crack it. For today's network protocols, because they all adopt the TCP / IP protocol, as...

AI Technical Summary

Problems solved by technology

Although this method can realize the transmission of information and has better concealment, in fact, this method also has disadvantages. Because it still transmits an acoustic signal similar to a general electrical signal, it is still extremely difficult to transmit during the transmission process. easily cracked

At the same time, this method will also be affected by computer users. For example, when playing music, information cannot be transmitted, and it will also be affected by the volume of the computer.

Second, most desktop cases today do not have speakers, so they are not universally applicable

Images