Key Takeaways

• Aliro 1.0 establishes a unified protocol for secure access credential exchange between digital devices.
• ST provides tools and reference designs to help manufacturers quickly create Aliro-compliant reader devices.
• The protocol supports advanced features like hands-free entry and location-aware actions using NFC, Bluetooth, and UWB technologies.

Aliro 1.0 has been recently released by the Connectivity Standards Alliance (CSA), introducing a unified protocol for the exchange of access credentials across digital devices. As a key member of the Aliro Working Group, STMicroelectronics (ST) has played a significant role in developing this specification and is offering tools and reference designs to facilitate the rapid creation of compliant reader devices by manufacturers. These reader devices are essential components of smart locks, allowing verification of digital credentials stored in smartphones, wearables, and other authorized gadgets.

ST highlights that Aliro enhances electronic security and provides more convenience compared to traditional methods such as mechanical keys, PIN pads, and standard access cards. Noteworthy features of Aliro include hands-free entry, location-aware capabilities, and digital key functions that offer privacy controls, shareable keys, and adjustable user permissions.

The protocol leverages established technologies like near-field communication (NFC), Bluetooth Low Energy, and ultra-wideband (UWB), all of which are compatible with modern smartphones. This versatility enables manufacturers to design access systems capable of operating over various distances, from a few centimeters to over 100 meters, based on the specific use case.

To expedite product development, ST has introduced an engineering package featuring the X-CUBE-ALIRO software library, now integrated into STM32Cube, along with a reference design specifically for Aliro-compatible readers. The STEVAL-ALOCKCB design utilizes ST microcontrollers and wireless components, accompanied by comprehensive documentation, CAD files, and a bill of materials to facilitate customization.

The software package offers a reader-side implementation of the Aliro 1.0 protocol, ensuring compliance with the standard’s technical specifications and interoperability requirements, while also preparing for future integration with Matter for device provisioning.

ST’s extensive portfolio comprises ST25 NFC readers, Bluetooth-enabled STM32 microcontrollers, and UWB chipsets, providing manufacturers with a one-stop source for all Aliro-ready wireless configurations. Additionally, the STSAFE-A secure element is available for the secure storage of digital keys.

Beyond hardware and software solutions, ST offers engineering support to help clients navigate common design challenges such as radio-frequency optimization and system layout. The aim is to simplify compliance and interoperability testing, enabling developers to bring certified Aliro products to market more swiftly.

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