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View article: Functional Encryption
Functional Encryption Open
Functional encryption gives users fine-grained access to the encrypted data and permits the computation of specific functions on the protected plaintexts. Namely, data is encrypted using a public key, while restricted keys that correspond …
View article: Inner-Product Functional Encryption with Fine-Grained Access Control
Inner-Product Functional Encryption with Fine-Grained Access Control Open
Abstract - We construct new functional encryption schemes that combine the access control functionality of attribute based encryption with the possibility of performing linear operations on the encrypted data. While such a primitive could …
View article: Inner-Product Functional Encryption with Fine-Grained Access Control
Inner-Product Functional Encryption with Fine-Grained Access Control Open
Abstract - We construct new functional encryption schemes that combine the access control functionality of attribute based encryption with the possibility of performing linear operations on the encrypted data. While such a primitive could …
View article: Dynamic Decentralized Functional Encryption
Dynamic Decentralized Functional Encryption Open
Accepted paper for the CRYPTO 2020 conference [Abstract] We introduce Dynamic Decentralized Functional Encryption (DDFE), a generalization of Functional Encryption which allows multiple users to join the system dynamically, without relying…
View article: Partially Encrypted Machine Learning using Functional Encryption
Partially Encrypted Machine Learning using Functional Encryption Open
Machine learning on encrypted data has received a lot of attention thanks to recent breakthroughs in homomorphic encryption and secure multi-party computation. It allows outsourcing computation to untrusted servers without sacrificing priv…
View article: Public-Key Encryption, Revisited: Tight Security and Richer Functionalities
Public-Key Encryption, Revisited: Tight Security and Richer Functionalities Open
Our work revisits public-key encryption in two ways: 1) we provide a stronger security guarantee than typical public-key encryption, which handles many users than can collude to perform sophisticated attacks. This is necessary when conside…
View article: Decentralized Multi-Client Functional Encryption for Inner Product
Decentralized Multi-Client Functional Encryption for Inner Product Open
We consider a situation where multiple parties, owning data that have to be frequently updated, agree to share weighted sums of these data with some aggregator, but where they do not wish to reveal their individual data, and do not trust e…