A Certificateless Signcryption Algorithm Suitable for Vanets

Abstract

The present invention proposes a certificateless signcryption method suitable for VANETs, ​​comprising the following steps: S1, adopting a system establishment algorithm to obtain vehicle network system parameters from the vehicle network system, and establishing a vehicle user ID i ;Use the fake identity generation algorithm and partial private key generation algorithm to generate the vehicle user fake identity, the validity period of the fake identity and part of the private key; use the vehicle user key generation algorithm to generate the vehicle user secret value; the vehicle user sender generates the user message, Based on the partial private key, user public key and secret value, a signcrypted ciphertext is generated and sent to the vehicle user receiver; the signcrypted ciphertext is decrypted by the verification equation to obtain the decrypted user message, and finally it is judged whether the decryption is valid. The invention is an efficient and safe certificateless signcryption algorithm, which can provide confidentiality, authentication, integrity, non-repudiation and privacy protection for information transmitted between vehicle communication units, and provide security guarantee for vehicle self-organizing network security communication .

Description

technical field [0001] The invention belongs to the subject scope of network space security, and relates to an efficient and safe certificateless sign-encryption algorithm suitable for VANETs. Background technique [0002] Vehicle Ad Hoc Networks (VANETs) can effectively solve traffic safety, management and congestion problems, and it is the basis of future intelligent transportation. However, security and privacy issues have seriously affected the further development of VANETs. VANETs work in a wireless communication mode, which is open and fragile, and is vulnerable to attacks and damages. The communication data in VANETs is easily monitored and monitored by the enemy. counterfeit. If the vehicle user's private information (such as driver's identity, license plate number, etc.) is obtained by a malicious third party, it is very likely to endanger the life and property safety of the vehicle user. Therefore, the deployment and implementation of VANETs must meet security re...

AI Technical Summary

Problems solved by technology

However, security and privacy issues have seriously affected the further development of VANETs. VANETs work in a wireless communication mode, which is open and vulnerable, and is vulnerable to attack and destruction. The communication data in VANETs is easily monitored and monitored by the enemy. fake

If the private information of the vehicle user (such as driver's identity, license plate number, etc.) is obtained by a malicious third party, it is very likely to endanger the life and property safety of the vehicle user.

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