Deliverable D2.1: Definition of Technical Requirements for User-centric 6G Trustworthiness

The 6G vision for an open, distributed and user-centric evolution of the current Service Based Architecture (SBA) core network creates many security challenges and risks. In the envisioned 6G ecosystem, trusted connections are critical for all parties involved, extending security and privacy to a more inclusive framework, such as trustworthiness, which should be assured as a native feature. The most significant paradigm adjustments in the envisioned user-centric 6G system are the shift from a security-only focus to a broader scope of native trustworthiness, clarifying that the term "trustworthiness" refers to a holistic approach, including safety, security, privacy, resilience andreliability. SAFE-6G aims at implementing such a trustworthy framework to support and enhance the trust over the next evolution of the 5G network and the managed resources.This document introduces a reference architectural blueprint to instantiate this new trustworthy 6G ecosystem. The impact of this new paradigm is also analysed from the point of view of the different stakeholders and actors linked to 5G/6G networks and the new roles, consents and opportunities it implies for them. Based on the architectural blueprint, different domains have been defined grouping together building blocks and components that have been identified. For each domain, an extended set of functional and non-functional requirements has been proposed towards realising this blueprint to a detailed architecture in D2.2 that will drive the proof-of-concept implementation and validation of the SAFE-6G ecosystem in WP5. These requirements create a highly ambitious view of the envisioned 6G framework and provide strong guarantees, to related stakeholders, about the impact and ambition that can be achieved by the project. In the last part, ambitious Use Case scenarios are presented along with some initial specific requirements. This document is the first deliverable of WP2- Realisation Process, Requirements and Reference Architecture Design and will be completed in the next months by two other deliverables: D2.2- Overall SAFE-6G Framework and Reference Architecture Design (due in M10/October 2024) and D2.3- Metaverse use-cases definition with virtual-assistant for user-centric configuration (due in M12/December 2024).