The Connectivity Standards Alliance (CSA) has created Aliro, an open smart-lock standard that allows smartphones to act as digital door keys [1, 2].
This development addresses the long-standing fragmentation of the smart-home market. By providing a single, open credential, the standard ensures that mixed-device households can maintain secure access without requiring every user to own the same brand of phone [1, 2].
Aliro utilizes Near Field Communication (NFC) technology to facilitate the exchange of credentials. This allows users to unlock doors by tapping their phones against a reader without the need for a Wi-Fi connection [1, 2]. The standard is designed to integrate directly with the mobile wallets of the three largest smartphone platforms: Apple, Google, and Samsung [2].
The Aliro 1.0 specification was officially launched in February 2026 [2]. Following this release, the first wave of compatible hardware and devices began arriving in the market a few months later [1].
Industry adoption has already begun with companies like Kastle, which is deploying Aliro mobile credentials across the major digital wallets [2]. This implementation allows for a seamless transition between different mobile operating systems, removing the need for proprietary apps for every single lock installation [2].
Because the system relies on NFC rather than a constant internet connection, it provides a layer of reliability for users who may experience connectivity drops. The open nature of the specification is intended to encourage more manufacturers to adopt the standard, potentially leading to a broader ecosystem of interoperable security hardware [1, 2].
“Aliro is an open NFC-based smart-lock standard that lets Apple, Google, and Samsung phones act as door keys.”
The introduction of Aliro signals a shift toward interoperability in the smart-home sector, moving away from 'walled gardens' where hardware only works with specific software ecosystems. By leveraging existing mobile wallets and NFC technology, the CSA is attempting to standardize digital identity for physical access, which could eventually extend beyond residential locks to commercial buildings and automotive entry.
