Attribute-Based Access Control Policy Review in Permissioned Blockchain

Permissioned blockchain is of a great deal to enterprise uses cases. There is a need to support access control policy review for legal and security reasons in some use cases. Specifying and maintaining a complex access policy for a permissioned blockchain may be well managed using attributes. The ABAC policy approaches offer a solution to a peculiar set of challenges for distributed system access control, like the blockchain. There are studies on leveraging Smart Contracts in implementing blockchain-based ABAC policy. However, most of these contributions implement an Attribute-Based Access Control policy expressed in a logical format. We proposed the ABAC enumerated policy format as an access control mechanism for the permissioned blockchain, Hyper-ledger Fabric network. We also proposed an algorithm for a set of policy review problems and implemented the algorithm for a blockchain-based policy specification.