X-NegoBox: An Explainable Privacy-Budget Negotiation Framework for Secure Peer-to-Peer Energy Data Exchange
Poushali Sengupta, Sabita Maharjan, Frank Eliassen, Yan Zhang

TL;DR
X-NegoBox is a framework enabling adaptive, explainable privacy negotiations for secure peer-to-peer energy data sharing, enhancing trust, privacy, and participation in decentralized energy systems.
Contribution
It introduces an autonomous negotiation protocol and explainable decision layer for dynamic privacy budgeting in energy data exchange.
Findings
Reduced privacy leakage in experiments
Higher request acceptance rates
Improved interpretability of decisions
Abstract
The decentralization of modern energy systems is transforming consumers into prosumers who continuously exchange data with aggregators, peers, and market operators. While such data is essential for peer-to-peer trading, demand response, and distributed forecasting, it can reveal sensitive household patterns and introduce privacy risks. Existing data sharing mechanisms rely on fixed policies or predefined differential privacy budgets, limiting their ability to adapt to variations in reliability, data sensitivity, and request purpose. As a result, prosumers rarely receive explanations for why a request is accepted, rejected, or modified, reducing trust and participation. To address these limitations, we propose X-NegoBox, an explainable negotiation framework for adaptive privacy budgeting and transparent decision making. Each prosumer data is managed locally within a private DataBox,…
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