An Access Control Model and Its Application in Blockchain

Abstract

Access control technology is an important information security mechanism. At present, most of the database systems and enterprise information systems are role-based access control technologies, this rights management system has been running stably. However, due to the simple role access control, its flexibility and control granularity sometimes can't meet the requirements of actual access control. This paper proposes a secure access control model ARBACV1 based on RBACV1 combined with ABAC model, which is more flexible than RBACV1 and can perform fine-grained access control. The open transparency of data in the blockchain has caused people's high attention to data privacy protection issues[1]. A complete access control mechanism has not been provided in the Ethereum blockchain. To this end, according to the blockchain architecture, the proposed access control model ARBACV1 is applied to the blockchain through smart contracts, and the access of the blockchain users is controlled securely, and the code is written in Solidity language in Ethereum[2]. ARBACV1-based access control is implemented in blockchain.