Authorization refers to the process of granting permission to users or systems to access specific resources or perform actions. In cryptocurrency, it ensures that only valid users can initiate transactions or access their accounts.When a user wants to send or receive cryptocurrency, they must prove their identity and ownership of the digital wallet. This usually involves the use of private keys, which are secret codes that only the wallet owner possesses. The authorization process verifies that the individual attempting the transaction is indeed the owner.Smart contracts also utilize authorization to define who can execute certain functions, ensuring that only authorized parties can interact with the contract. This adds a layer of security and trust to decentralized applications.Overall, effective authorization is essential for maintaining security and integrity, preventing unauthorized access, and enabling smooth operations within blockchain networks.