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Secure Digital Certificate-Based Data Access Control Scheme in Blockchain
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DOI：10.1109/ACCESS.2020.2993921.png)
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Abstract
En 中文
Previous contract protocols in blockchains ensure their fairness and traceability by utilizing centralized credible nodes. If credible nodes are dishonest or conspire with the signatory, then other nodes are compromised. Meanwhile, the leakage of sensitive information of participant nodes poses a serious threat to the privacy security of data access in blockchains. To address this issue, this study proposes a secure control method of digital certificate-based data access in blockchains. The proposed method combines blockchain and digital certificate technologies and designs a secure authentication protocol for privacy data in blockchains without verifying the encrypted identity signature of the third-party participant. The high-efficiency network forwarding protocol proposed in this work can support the fair contract signing of multiple signers via blockchain. This protocol can protect the privacy of contracts and identities of participants. Experimental results show that the proposed scheme is superior in terms of communication overhead, storage overhead, and detection rate.
Keywords:
Authentication
Protocols
Contracts
Peer-to-peer computing
Data privacy
Blockchain
digital certificate
sensitive information
encrypted signature
authentication protocol
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