Non-Repudiation Storage and Access Control Scheme of Insurance Data Based on Blockchain in IPFS

Abstract

The insurance business plays a quite significant role in people's lives, but in the process of claim settlement, there are still various frauds such that the insurance companies' refusal to compensate or customers' malicious fraud to obtain compensation. Therefore, it is very important to ensure fair and just claims. In this paper, by combining the blockchain technology and the ciphertext-policy attributebased encryption system, we build a scheme for secure storage and update for insurance records under the InterPlanetary File System (IPFS) storage environment in the insurance system. In this scheme, we use the fog node to outsource encryption of insurance records to improve the efficiency of the staff; In addition, we store encrypted insurance records on IPFS to ensure the security of the storage platform and avoid the single point failure of the centralized mechanism. In addition, we use the immutability of the blockchain to achieve the non-repudiation of both insurance companies and the client. The security proof shows that the proposed scheme can achieve selective security against selected keyword attacks. Our scheme is efficient and feasible under performance analysis and real data set experiments.

Decentralized secure storage of medical records using Blockchain and IPFS: A comparative analysis with future directions

“…Jin Sun et al 20 model, which has five entities, Blockchain, IPFS, Fog Nodes, Insurance Company system, and clients. All the clients have to register themselves first in the insurance company system and buy some insurance.…”

“…All the clients have to register themselves first in the insurance company system and buy some insurance. After that, they get their public and private key‐pair, and the staff stores the insurance record for future claim 20 . The insurance record is first signed by the staff then some keywords are extracted for index generation for the file and are saved onto the insurance company systems.…”

Blockchain-Based Decentralized Cloud Solutions for Data Transfer

“…Unlike our method, theirs relies on attribute-based encryption rather than authorization components. The Ethereum-enabled IPFS version is used and creates an access control list smart contract that IPFS software enforces [ 15 ]. When a user uploads a file, it gets split up by IPFS.…”

Blockchain in Insurance: Exploratory Analysis of Prospects and Threats

“…The insurance companies stand high chances of losing good treasure as a result of claims of fraudulent nature [45,126]. Inadvertently, fraud increases yearly [18] and by estimation, about 5 to 10 percent of all annual claims are fraudulent and the FBI indicates that it costs US non-health insurers over 40 billion every year [127,128] which results in extra costs for policyholders in increased premiums.…”