Multi-Client Encryption refers to cryptographic systems that enable secure data sharing among multiple authorized users while maintaining the confidentiality of the information. This involves designing encryption schemes where data can be encrypted once and then decrypted by several designated recipients using their individual keys. It addresses the challenge of granting selective access to encrypted data in distributed environments. Such systems are crucial for privacy and access control in decentralized applications.
Context
The development of Multi-Client Encryption is a significant area of focus for enhancing data privacy and access control within decentralized networks and cloud computing. Its application extends to secure data marketplaces, collaborative platforms, and confidential transactions on blockchains. Research continues to refine these schemes to ensure efficiency, security, and granular control over shared encrypted information.
A new Verifiable Threshold Functional Encryption primitive achieves constant-size partial decryption, fundamentally solving the linear communication cost bottleneck for large-scale private computation.
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