Research On Secure Aggregation In VANETs

VANETs(Vehicular Ad Hoc Networks) is a new technology to enhance the security of the road traffic. Now the number of vehicles is very large and becoming larger day by day, it also makes the VANETs more and more complex. The security and the efficiency are becoming the most two important problems of the VANETs.Information aggregation is an efficient mechanism to improve the efficiency of the data transmission. In the side of secure communication, most of the algorithm uses the digital signature to achieve the security verification, but it brings in much communication overhead and computing overhead; in the side of increasing the communication efficiency, some algorithm compress the original information so much that it loses part of the information, and some algorithm brings down the security to some degrees and even perhaps abandon the security completely. So we need an effective algorithm to harmonize the two problems.I put forward an effective scheme to implement the secure aggregation in the VANETs. This scheme can achieve the security with very small communication overheads and embed the TPM into this secure aggregation scheme to prevent the vehicle systems from malice codes and store the keys safely.At last, I give the analysis of our algorithm's code and the simulation to evaluate the performance and prove that it is an effective scheme of secure aggregation.