Abstract
Now a days the need for decentralized applications is increasing and blockchain provides the foundational technology for creating and developing them. The security and integrity of the blockchain network and its resources are supported by access controls, which is a crucial component of blockchain-based applications. This paper presents a study of various access control mechanisms, including smart contracts, consensus algorithms, and cryptographic protocols, to assess their benefits and limitations in different contexts of applications. The purpose of the paper is to present various access control systems in blockchain-based applications and their applicability and effectiveness in various use case scenarios.
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