Secure and Anonymous IoT Data Sharing Platform based on Blockchain using Proxy Re-encryption

Data is central to the Internet of Things (IoT) ecosystem. With billions of devices connected, utmost of the current IoT systems are using centralized pall- grounded data participating systems, which will be delicate to gauge up to meet the demands of unborn IoT systems. The involvement of such a third- party service provider requires also trust from both the detector proprietor and detector data stoner. Also, freights need to be paid for their services. To attack both the scalability and trust issues and to automatize the payments, this paper presents a blockchain- grounded business for sharing of the IoT data. We also use a deputyre-encryption scheme for transferring the data securely and anonymously, from data patron to the consumer. The system stores the IoT data in pall storehouse after encryption. To partake the collected IoT data, the system establishes runtime dynamic smart contracts between the detector and data consumer without the involvement of a trusted third- party. It also uses a veritably effective deputyre-encryption scheme which allows that the data is only visible by the proprietor and the person present in the smart contract. This new combination of smart contracts with deputyre-encryption provides an effective, fast and secure platform for storing, trading and managing detector data. The proposed system is enforced using out-the-shelf IoT detectors and computer bias. We also dissect the performance of our mongrel system by using thepermission-less Ethereum blockchain and compare it to the IBM Hyperledger Fabric, a permissioned blockchain.