The block chain is the emerging domain that offers the features like shared, immutable, and decentralized dataset that saves the asset's history. Security and storage are the most challenging aspect. The classical techniques' issues and challenges are an encouragement for developing a fresh block chain-assisted IPFS model with access control policies. Hence, this research paper introduces an effective access control and authentication based on an interplanetary file system (IPFS)-based block chain and access control system for attaining secured transactions. The developed method comprises five entities, that is smart contract, data owner, data requester, block chain and IPFS along with eight phases, to be exact setup, user registration, initialization, storage and data encryption, authentication, testing, access control, and decryption phase, to provide better access control and storage capacity. The proposed IPFS-based block chain and access control system offered effective storage and secure transactions in the block chain network. The highest detection rate (0.870), lowest communication overhead (0.766 MB), and highest privacy rate (0.719) are all achieved by the proposed IPFS-based block chain and access control system.
K E Y W O R D Saccess control, authentication model, block chain technology, inter-planetary file system, smart contracts
INTRODUCTIONRecently, the block chain technique is a decentralized dataset with storage mechanisms. 1 In addition, the block chain offers features like shared, immutable, and decentralized datasets, which accumulate records and transactions considering peer-to-peer (P2P) networks. The block chain is effectively used in bitcoin, and now it is well-known in different domains, like finance, healthcare, and supply chain. 2,3 A distributed immutable ledger where all transactions are recorded is provided by the block chain, which is referred to as a decentralized model. The block chain is a decentralized data store with prearranged records, such as events, also known as blocks. 4 Block chain represents an immutable and trustful distributed ledger that offers a stable, secure, auditable, transparent and effective recording of interactive data or information. 5 Thus, accumulating the data of insurance records using block chain facilitates data originality and addresses the security issues faced by central authorization techniques. 6,7 Here, the insurance business is attained amongst the client and insurance companies. However, to attain the client's privacy, the staff working on insurance should encrypt insurance data before the storage. 8 The profound computing functions minimize the effectiveness of staff and minimize the client's burden. Hence, the decryption and encryption of insurance data amongst the fog nodes are enforced. 9 The significance of block chain is facilitated to us by connecting the P2P crypto currency with bandwidth, storage space, and central processing unit (CPU) power. 10,11 The hypertext transfer protocol (HTTP) is imperative in developing worldwide applicat...