3 papers
cs.CR2026
Towards Privacy-Preserving Federated Learning using Hybrid Homomorphic Encryption
Ivan Costa, Pedro Correia, Ivone Amorim +2
Federated Learning (FL) enables collaborative training while keeping sensitive data on clients' devices, but local model updates can still leak private information. Hybrid Homomorp…
cs.CR2024
S3PHER: Secure and Searchable System for Patient-driven HEalth data shaRing
Ivan Costa, Ivone Amorim, Eva Maia +2
Healthcare data contains some of the most sensitive information about an individual, yet sharing this data with healthcare practitioners can significantly enhance patient care and…
cs.CR2023
Patient-centric health data sovereignty: an approach using Proxy re-encryption
Bruno Rodrigues, Ivone Amorim, Ivan Costa +1
The exponential growth in the digitisation of services implies the handling and storage of large volumes of data. Businesses and services see data sharing and crossing as an opport…