nearaccess
Nearaccess refers to proximity-based access control and service provisioning, where access to a resource—physical or digital—is granted when a user or device is within a defined proximity to an access point. In these systems, the user’s credential is stored on a device such as a smartphone, wearable, or smart card. Access points and controllers exchange cryptographic tokens and perform mutual authentication before granting authorization. Proximity is established through technologies such as Bluetooth Low Energy, NFC, RFID, UWB, or Wi‑Fi positioning, often supported by small beacons or door controllers.
Applications include physical entry to buildings or rooms using mobile credentials, automatic sign-in to workstations or
Security and privacy considerations are central. Risks include relay or replay attacks, credential theft, and device
Standards and related concepts include contactless smart cards (ISO/IEC 14443), NFC, Bluetooth Low Energy protocols, beacons,