Attribute-Based Encryption is a cryptographic method that permits data access based on user characteristics. This system grants decryption capabilities only to individuals whose set of attributes satisfies a predefined policy associated with the encrypted data. It offers fine-grained access control, allowing precise regulation over who can access specific information within a decentralized network. This cryptographic primitive finds utility in scenarios demanding conditional access to sensitive digital assets or records.
Context
Discussions surrounding Attribute-Based Encryption frequently concern its application in secure data sharing within decentralized finance and supply chain platforms. Its role in privacy-preserving data analytics and verifiable credential systems garners increasing attention. A critical future development involves optimizing its computational efficiency for widespread blockchain adoption and addressing potential policy revocation complexities.
Proposes ORABE, an auditable Registered ABE scheme leveraging blockchain and zero-knowledge fraud proofs to enable verifiable, outsourced decryption while ensuring fairness and auditability.
A novel Attribute-Based Encryption scheme offloads decryption to the cloud, ensuring verifiable, auditable, and privacy-preserving data access on blockchain.
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