Multi-encryption based data transmission method

Abstract

The present application discloses a multi-encryption based data transmission method. Compared with the prior art, the present application uses triple-hybrid encryption. When data is transmitted each time, plaintext data is encrypted by an asymmetric encryption method, and the data transmission random number plaintext is encrypted by a symmetric encryption method. A signature is added to the transmitted data. Once the signature is found to be inconsistent, it can be inferred that there is an illegal attacker, and random numbers generated each time are different from each other, and are doped inan encrypted message, so the attacker is difficult to determine the specific ciphertext length and a location of the specific encrypted message, and cracking and reuse cannot be achieved, thereby effectively resisting replay attacks and ensuring the confidentiality and authenticity of the data transmission. In addition, the present application also uses the hash value contrast method to ensure the integrity of the transmitted data.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a data transmission method based on multiple encryption. Background technique [0002] With the development of intelligent transportation, the scale of my country's Internet of Vehicles users is also increasing year by year, and the industry penetration rate will rise from 2% in 2010 to 10% in 2017, and will enter a stage of accelerated growth after breaking through 10%. It is estimated that by 2020, the number of users will exceed 50 million. The requirements for communication between vehicles are getting higher and higher, and there is an urgent need for wide application of wireless communication networks with low power consumption, fast transmission, and wide range. On this basis, communication security has also become very important. . [0003] In the prior art, the sending end and the receiving end in the vehicle network start data transmission after identity ver...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the sending end and the receiving end in the vehicle network start data transmission after identity verification. Generally, encryption is not used during data transmission, or only one encryption method is used to encrypt all the data that needs to be transmitted, and the data is kept confidential. integrity, integrity and authenticity are not guaranteed

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