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Aliro aims to make your phone a universal key, bringing cross-platform tap-to-unlock and hands-free entry to compatible smart locks.
Aliro aims to make your phone a universal key, bringing cross-platform tap-to-unlock and hands-free entry to compatible smart locks.
Jennifer Pattison TuohyCloseJennifer Pattison TuohySenior Reviewer, Smart HomePosts from this author will be added to your daily email digest and your homepage feed.
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Aliro has officially arrived. The smart lock standard, first announced in 2023, finally has a 1.0 spec, meaning companies can now get hardware certified and roll out support.
Aliro is an open standard designed to let any smart lock be unlocked by any smartphone, regardless of manufacturer. It stores a digital key in your phone’s wallet that you can tap to a compatible lock — just like you tap to pay.
If you’ve used Apple’s Home Key, you already understand the idea — but instead of being locked into Apple’s ecosystem, Aliro is cross-platform, working on both Android and iOS, and with the major mobile wallet ecosystems — Apple, Google, and Samsung. So, if you have an iPhone and your roommate has an Android, you’ll both be able to tap-to-unlock your smart lock.
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The digital key will live in your phone’s wallet and can also be used on your smartwatch. A local protocol, Aliro doesn’t require a cloud connection, an app, or proprietary software; your phone connects directly to the lock.
Apple, Google, and Samsung have been involved in developing Aliro, and have committed to supporting Aliro “out of the gate,” Nelson Henry of Last Lock and chair of the Aliro Working Group, told The Verge in an interview this week. He added that he believes Aliro support will roll out on all platforms within the next couple of months.
Aliro promises to fix the fragmentation of smart locks, where digital keys only work with specific apps or phones, and make them universal. Eventually, with widespread adoption of Aliro, a digital key in your phone or watch could unlock your front door, office, and apartment building, no matter who made the lock.
Aliro defines both the credentials needed to confirm the right device is accessing the right lock and the radio technologies used between key and lock. The protocol requires near-field communication (NFC) and Bluetooth low energy (BLE), and also supports ultra-wideband (UWB).
Just like you can tap to pay with a smartphone or a watch, with Aliro, you can tap to unlock a door
NFC is the same tech that supports tap-to-pay in your smartphone or watch. So, just like you can tap to pay with a smartphone or a watch that supports NFC, with Aliro, you can tap to unlock a door.
UWB enables a newer feature, hands-free unlocking, where the door unlocks as you approach, something Apple’s Home Key recently added support for. Bluetooth is used to establish a connection between the lock and the phone when using UWB and to enable remote control via an app from a greater distance (most smart locks today already use Bluetooth for unlocking).
There’s no requirement for Wi-Fi or cellular connectivity, so you should be able to unlock in dead zones like basements, parking garages, and elevators.
According to Henry, Aliro uses asymmetric cryptography for security and controls the entire unlocking process, creating a direct, secure communication between devices.
Aliro is managed by the Connectivity Standards Alliance, the group behind the smart home standard Matter. It’s a separate but complementary technology; Aliro connects your lock to the digital wallet in your smartphone, whereas Matter connects it to your smart home platform — such as Apple Home, Amazon Alexa, or Home Assistant.
The CSA says Aliro has been developed by over 220 companies, including Apple, Google, and Samsung; major lock manufacturers such as Assa Abloy (Kwikset and Yale), Allegion (Schlage), and Fortune Brands (Yale US and August); and chip manufacturers such as Infineon, Nordic, and NXP.
The broad industry support suggests Aliro has a real chance at wide deployment — from front doors to apartment buildings, offices, and hotels. But adoption will take time and will most likely require new hardware.
Henry said it may be technically possible to bring Aliro tap-to-unlock to some existing locks with NFC chips via over-the-air updates, but only for hardware with newer chips. “Anything in the last five years shouldn’t be an issue,” he said.
