The Distributed Discrete Gaussian Mechanism
            for Federated Learning with Secure Aggregation

                   Peter Kairouz 1 Ziyu Liu 1 Thomas Steinke 1

            Abstract                learning (FL) to ensure that raw data never leaves users’
                                devices (McMahan et al., 2017; Kairouz et al., 2019), cryp-
   We consider training models on private data that      tographic secure aggregation (SecAgg) to prevent a server
   are distributed across user  ...