Three-Tier approach to fortifying secure communication in Internet of vehicles networks

In the recent era, the high speed networking technologies plays a vital role in Internet of Vehicles (IoV) is increasingly prevalent in numerous real-time applications. In IoV network, the communication between different vehicles are rapidly increased by sharing essential information such as traffic conditions, pathways, vehicle details, and position which enables to enhancing traffic safety and optimizing vehicle efficiency. The secure exchange of highly sensitive IoT network details among the vehicles is of paramount importance. Establishing robust security measures is essential to safeguard the integrity and confidentiality of this critical data exchange mechanism. The proposed model introduces a novel approach that leverages both steganography and encryption techniques to bolster the confidentiality and integrity of sensitive information exchanged among the vehicles in the IoV network. Initially, the sensitive information undergoes encryption using the Improved RSA (IRSA) algorithm. Subsequently, the data bits within the encrypted messages are subjected to binary flipping, and these altered bits are then embedded into a cover image using Pixel Value Differencing (PVD) and Pixel Value Indicator (PVI) steganography methods. This triple-layered security approach ensures the confidentiality and integrity of shared information in IoV, bolstering the security of sensitive messages and providing superior imperceptibility along with a high embedding capacity. The Experimental results shows that the proposed method produces an average PSNR of 41.5862 dB for 512x512 images and an embedding capacity of 1,028,455 bits, suitable for secret messages of 31,982 characters in size compare to the various existing methods.