4 citations · 10 across the 5 of their papers we have counts for
6 papers
Pushing Forward Multi-Secret-Key Homomorphic Encryption for Private Average Aggregation
Miguel Morona-Mínguez, Fernando Pérez-González, Alberto Pedrouzo-Ulloa
Federated Learning enables multiple clients to train a shared model while keeping their local datasets isolated. However, the exchanged model updates may still leak sensitive infor…
A Critical Look into Threshold Homomorphic Encryption for Private Average Aggregation
Miguel Morona-Mínguez, Alberto Pedrouzo-Ulloa, Fernando Pérez-González
Threshold Homomorphic Encryption (Threshold HE) is a good fit for implementing private federated average aggregation, a key operation in Federated Learning (FL). Despite its potent…
Fast polynomial arithmetic in homomorphic encryption with cyclo-multiquadratic fields
Iván Blanco-Chacón, Alberto Pedrouzo-Ulloa, Rahinatou Yuh Njah Nchiwo +1
We discuss the advantages and limitations of cyclotomic fields to have fast polynomial arithmetic within homomorphic encryption, and show how these limitations can be overcome by r…
Multivariate Cryptosystems for Secure Processing of Multidimensional Signals
Alberto Pedrouzo-Ulloa, Juan Ramón Troncoso-Pastoriza, Fernando Pérez-González
Multidimensional signals like 2-D and 3-D images or videos are inherently sensitive signals which require privacy-preserving solutions when processed in untrustworthy environments,…
On Ring Learning with Errors over the Tensor Product of Number Fields
Alberto Pedrouzo-Ulloa, Juan Ramón Troncoso-Pastoriza, Fernando Pérez-González
The "Ring Learning with Errors" (RLWE) problem was formulated as a variant of the "Learning with Errors" (LWE) problem, with the purpose of taking advantage of an additional algebr…
Number Theoretic Transforms for Secure Signal Processing
Alberto Pedrouzo-Ulloa, Juan Ramón Troncoso-Pastoriza, Fernando Pérez-González
Multimedia contents are inherently sensitive signals that must be protected whenever they are outsourced to an untrusted environment. This problem becomes a challenge when the untr…