Definition ∞ Fine-grained access control allows precise management of permissions for specific data or functions within a system. This security approach enables administrators or smart contracts to define highly specific authorization rules, granting or denying access to individual attributes, specific fields, or particular operations on digital assets or data. It moves beyond broad user roles to provide granular control over resources. Such precision is critical for maintaining data privacy and regulatory compliance in complex decentralized applications.
Context ∞ Fine-grained access control is a crucial area of development for enterprise blockchain solutions and decentralized applications handling sensitive information, such as medical records or financial data. News often discusses advancements in cryptographic techniques, like attribute-based encryption, that enable more robust and decentralized implementations of this control. The challenge lies in balancing the complexity of granular policies with the efficiency and transparency inherent to blockchain technology.
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