CSA Announces Aliro 1.0: Unified Access Control For Smart Locks

The Connectivity Standards Alliance (CSA) has published the Aliro 1.0 specification, establishing a new open standard intended to unify and simplify digital access control across devices and ecosystems.

Aliro is a communication protocol and credential format designed to replace fragmented, proprietary access systems with a single interoperable framework. The standard enables smartphones, wearables, and access readers from different manufacturers to communicate securely, creating a consistent user experience whether unlocking a residential door, accessing an office, or entering university or hospitality facilities.

A key tenet of the specification is broad mobile wallet integration. Mobile platforms – including Apple, Google, and Samsung – have committed to supporting Aliro. This alignment enables users to store digital access credentials in their mobile wallets and use their everyday devices for authentication, without needing separate apps or cloud reliance, much like Apple HomeKey has worked for a few years now, but with Aliro, this functionality becomes cross platform, so this is good news for Android users, not just for those with an iPhone or Apple Watch.

Security is built into the architecture. Aliro uses asymmetric cryptography to establish trusted interactions between user devices and access readers while protecting privacy. The specification supports multiple communication technologies, including Near-Field Communication (NFC) for tap-to-unlock, Bluetooth Low Energy (BLE) for longer-range communication, and Ultra-Wideband (UWB) combined with BLE to enable secure, hands-free authentication.

The Alliance has also launched a certification program and accompanying test suites to ensure interoperability across the ecosystem. Over 220 member companies participated in the development of Aliro 1.0, including major mobile platform vendors, silicon suppliers, lock manufacturers, and security technology providers. Early adopters expected to pursue certification include Apple, Google, Samsung, ASSA ABLOY, Allegion, Aqara, HID, Kwikset, Nordic Semiconductor, Nuki, NXP, and STMicroelectronics. Aqara’s latest lock, the U400  (review HERE, video HERE) is already claimed to be Aliro compatible.

From a market perspective, Aliro aims to reduce implementation complexity for manufacturers, lower integration costs, and simplify deployment and maintenance for installers. System owners benefit from enhanced flexibility to mix and match compatible hardware and software across environments. 

The Alliance positions Aliro as a living standard. Future phases are planned to expand functionality – for example, secure credential sharing – while retaining backward compatibility with existing implementations to protect early adopters and accelerate global adoption.

How Aliro sits with Apple HomeKey brings up a similar set of questions for HomeKit Secure Video (HSV), when Matter 1.5 was announced recently, that now adds a whole suite of functions to Matter compatible doorbells and cameras. If we were to guess, HomeKey and HSV are going to be around for a while yet, but that also depends on whether future iterations of Matter and Aliro add features that leave the two Apple Home features trailing.