Bologna, Daniel; Micciché, Vincenzo; Violo, Giovanni; Visconti, Alessandro; Cannavo', ... (In stampa) SPHinX - Secure Painting-based autHentication in eXtended reality and the metaverse. In: 30th IEEE Conference on Virtual Reality and 3D User Interfaces (3DUI Contest), Shanghai, March 25-29, 2023 Contributo in Atti di Convegno (Proceeding)