As a huge business worldview, numerous online data stages have risen to fulfill society’s requirements for individual particular information, where a specialist co-op gathers crude information from information patrons, and afterward offers esteem added information administrations to information purchasers. Be that as it may, in the information exchanging layer, the information purchasers confront a squeezing issue, i.e., how to confirm whether the specialist co-op has honestly gathered and prepared information? Moreover, the information patrons are normally reluctant to uncover their delicate individual information and genuine personalities to the information buyers.
In this project, we propose TPDM, which productively coordinates Truthfulness and Privacy protection in Data Markets. TPDM is organized inside in an Encrypt-then-Sign mold, utilizing to some degree homomorphic encryption and personality based mark. It at the same time encourages cluster check, information handling, and result confirmation, while keeping up character safeguarding and information classification. We additionally instantiate TPDM with a profile-coordinating administration, and broadly assess its execution on Yahoo! Music evaluations dataset. Our examination and assessment results uncover that TPDM accomplishes a few attractive properties, while causing low calculation and correspondence overheads when supporting an expansive scale information showcase.