ALI: Anonymous Lightweight Inter-Vehicle Broadcast Authentication with Encryption

Wireless broadcast transmission enables Inter-vehicle or Vehicle-to-Vehicle (V2V) communication among nearby vehicles. This supports latency-critical applications for improved safety and maybe optimized traffic. However, V2V is vulnerable to cyber attacks involving message manipulation. Mechanisms are required ensure both authenticity integrity of data, while maintaining drivers privacy against surveillance. Considering the limited computational resources vehicles possibility high traffic density scenarios, authentication processes should have low overhead. Prior research has produced multiple protocol proposals based on digital signatures, hash functions, Message Authentication Codes (MACs). To date, there no computationally efficient secure scheme tolerable by resource-constrained On-Board Units (OBUs) in heavy conditions. paper provides a new secure, efficient, privacy-preserving proposing Anonymous Lightweight (ALI) with encryption. ALI level anonymity combining beacon The cryptographic overhead only 149 bytes, can handle approximately 700 messages every 100 milliseconds. demonstrates suitability scenarios. We show security efficiency our proposal conducting proof performance analysis.