Distributed Secure Storage Scheme Based on Sharding Blockchain

Abstract

Distributed storage can store data in multiple devices or servers to improve data security. However, in today's explosive growth of network data, traditional distributed storage scheme is faced with some severe challenges such as insufficient performance, data tampering, and data lose. A distributed storage scheme based on blockchain has been proposed to improve security and efficiency of traditional distributed storage. Under this scheme, the following improvements have been made in this paper. This paper first analyzes the problems faced by distributed storage. Then proposed to build a new distributed storage blockchain scheme with sharding blockchain. The proposed scheme realizes the partitioning of the network and nodes by means of blockchain sharding technology, which can improve the efficiency of data verification between nodes. In addition, this paper uses polynomial commitment to construct a new verifiable secret share scheme called PolyVSS. This new scheme is one of the foundations for building our improved distributed storage blockchain scheme. Compared with the previous scheme, our new scheme does not require a trusted third party and has some new features such as homomorphic and batch opening. The security of VSS can be further improved. Experimental comparisons show that the proposed scheme significantly reduces storage and communication costs.

Building operation and maintenance scheme based on sharding blockchain

“…Each shard handled transactions related to its domain in parallel, thereby improving overall throughput of blockchain system. Wang et al [ 19 ] proposed a distributed secure storage scheme based on sharding blockchain, which randomly and evenly divides the nodes into shards. On this basis, they designed secret sharing scheme without trusted third party, effectively reducing the overhead of storage and communication.…”

“…As the mainstream method of blockchain expansion, sharding technology can offload the workload of handling transactions and storing data to different shards [ 18 , 19 ], thereby reducing the storage pressure of nodes and improving the throughput of blockchain system. However, it is rare to apply sharding technology to BOM scenario.…”

CWoT-Share: Context-Based Web of Things Resource Sharing in Blockchain Environment

“…Blockchain technology has anonymity and distribution characteristic [16][17][18][19], and its distributed ledger technology makes it suitable for various applications that rely on real and reliable transaction data storage and data sharing between transaction parties [20,21], such as blockchain-based power monitoring and trading [22]. Meanwhile, the smart contract can be deployed on the blockchain to implement transactions based on the contract rules [23,24].…”

Design and Development of IoT-Based Intelligent Solutions with Blockchain for Indian Farmers on Livestock Management

“…Blockchain is the solution in distributed storage for various security and performance issues [26]. In a case study proposed by Daniel Soesanto et al [27] in Indonesia, Livestock-related issues with data integrity, cost, type, size, and trust for consumer ingredients values and detection of food fraud can be achieved using Blockchain.…”