Distributed Secure Storage System Based on Blockchain and TPA

摘要

With the rapid development of cloud computing technology, more and more users save a large amount of data in cloud storage. In addition to meeting the performance requirements, how to ensure the integrity of these data has become a hot topic for academic research in recent years. Provable data possession (PDP) based on trusted party auditor (TPA) is an important method to solve this problem. Decentralized storage based on blockchain technology, which has emerged in recent years, can well realize the proof of data possession. But it can't seamlessly interface with high-performance cloud storage. In this paper, we propose a PDP model based on blockchain and TPA (BT-PDP). On this basis, a distributed secure file system (FS) is implemented to realize a BT-PDP proof of massive electronic data.