A secure authorized deduplication scheme for cloud data based on blockchain

作者：

Highlights：

• Blockchain-based deduplication scheme ensures the security and integrity of data.

• The smart contract can create a tamper-proofing ledger from the users’ data.

• HRHT can realize fine-grained authorized access on cloud storage system.

• Blockchain-based audit protocols can check the data integrity in different stages.

摘要

•Blockchain-based deduplication scheme ensures the security and integrity of data.•The smart contract can create a tamper-proofing ledger from the users’ data.•HRHT can realize fine-grained authorized access on cloud storage system.•Blockchain-based audit protocols can check the data integrity in different stages.

论文关键词：Deduplication,Convergent encryption,Brute-force attack,Collusion attack,Blockchain

论文评审过程：Received 14 May 2020, Revised 4 January 2021, Accepted 8 January 2021, Available online 22 January 2021, Version of Record 22 January 2021.

论文官网地址：https://doi.org/10.1016/j.ipm.2021.102510