Test a file in remote server This is a java project, if you want to run it. You should also add the jPBC jars. Our test.data has 1046 blocks, our challenge blocks is 1000. If you modify the test.data, the verification result will show "false" Compared to MD5, the proof is only to be transferred. In this protect, the tags were computed by the OBU and PDA. The tags can enrure that the driving data cannot be modified by the cloud server like the Tesla event in China. The detailed of this code will be published as a paper in the future. If you hava any question, you can contact me with :lisong at nufe dot edu dot cn.