The security and integrity of digital systems and data must be guaranteed in a society that is becoming more linked and data-driven. In order to improve access control methods, this article investigates the creation of a cutting-edge authentication and authorization system using blockchain technology. Traditional authentication techniques sometimes fall short of offering complete protection, leaving them open to a variety of online attacks. Blockchain presents a viable answer to these security issues because to its intrinsic properties of immutability, decentralization, and transparency. In order to fully use the promise of blockchain technology, this project intends to create and put into use a unique authentication and authorization system. Access control procedures won’t be dependent on a single point of failure because of the distributed ledger technology used in the system design. This suggested the system would improve security, reduce unauthorized access, and safeguard sensitive data through the use of consensus methods, smart contracts, and cryptographic techniques.