Multi-User Protocols with Access Control for Computational Privacy in Public Clouds

Provided by: Cisco
Topic: Cloud
Format: PDF
Computational privacy is a property of cryptographic system that ensures the privacy of data being processed at an untrusted server. Fully Homomorphic Encryption schemes (FHE) promise to provide such property. Contemporary FHE schemes are suited for applications that have single user and server. In reality many of the cloud applications involve multiple users with various degrees of trust and the server need not necessarily be aware of it too. The authors present a complementary key pairs technique and protocols based on that to scale any generic FHE schemes to multi-user scenarios.

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