The TSC-PFed Architecture for Privacy-Preserving FL

Abstract

In this paper we will introduce our system for trust and security enhanced customizable private federated learning: TSC-PFed. We combine secure multiparty computation and differential privacy to allow participants to leverage known trust dynamics which allow for increased ML model accuracy while preserving privacy guarantees and introduce an update auditor to protect against malicious participants launching dangerous label flipping data poisoning. We additionally introduce customizable modules into the TSC-PFed ecosystem which (a) allow users to customize the type of privacy protection provided and (b) provide a tiered participant selection approach which considers variation in privacy budgets.