Summary - X.1268 (03/2026) - Framework for out-of-band physical access control systems using beacon-initiated mutual authentication

Recommendation ITU-T X.1268 provides a framework for out-of-band physical access control systems using beacon-based dynamic authentication information, enabling users to authenticate and use physical facilities in a safe and trustworthy manner coupled with biometric authentication on their smartphones. It defines the procedures of out-of-band physical access control systems, where users use physical facilities to receive beacon-based dynamic authentication information on their smartphones, verify facility information, and then perform the approval operation on their smartphones. Additionally, it identifies potential security threats associated with these systems and the corresponding security requirements.