Short message encryption and decryption communication system and communication method thereof

Abstract

The invention discloses a short message encryption and decryption communication system which comprises a private key generator, a sending terminal and a receiving terminal, wherein the private key generator is used for generating system parameters and a primary key; the sending terminal is connected with the private key generator and communicated with the receiving terminal; the receiving terminal is connected with the private key generator and communicated with the sending terminal; the private key generator is used for generating private keys of the sending terminal and the receiving terminal; the private keys are obtained by the sending terminal and the receiving terminal from the private key generator; a symmetric key is shared by the sending terminal and the receiving terminal; a short message is encrypted or decrypted by the sending terminal and the receiving terminal in accordance with the symmetric key; and additionally, the symmetric key is updated. According to the short message encryption and decryption communication system, while encryption short messages are sent, the key is updated, and all of the short messages are encrypted by using different keys, so that the effect of one-time encryption is achieved, and the safety of short message interaction is guaranteed. The invention further discloses a communication method of the short message encryption and decryption communication system.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a mobile phone short message encryption and decryption communication system and a communication method thereof. Background technique [0002] With the development of communication technology, mobile phones have become an indispensable communication tool in people's daily life, and in the process of using mobile phones, the utilization rate of short messages is also increasing. Many users will send some private or confidential data (such as bank accounts, passwords in some application environments, etc.) through SMS, so the security of SMS is becoming more and more important. [0003] In recent years, with the continuous upgrading of mobile phone operating systems and the continuous improvement of mobile phone hardware performance, more and more people have begun to study the application of data encryption in mobile phone text messages. However, some of these short m...

AI Technical Summary

Problems solved by technology

Now, a mobile phone encryption software "Crypt Haze 1.0" has also appeared on the Android platform, but its encryption algorithm is very simple, and there is no key management mechanism. The confidentiality of text messages provides a good security guarantee

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