• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Microcontroller Tips

Microcontroller engineering resources, new microcontroller products and electronics engineering news

  • Products
    • 8-bit
    • 16-bit
    • 32-bit
    • 64-bit
  • Applications
    • 5G
    • Automotive
    • Connectivity
    • Consumer Electronics
    • EV Engineering
    • Industrial
    • IoT
    • Medical
    • Security
    • Telecommunications
    • Wearables
    • Wireless
  • Learn
    • eBooks / Tech Tips
    • EE Training Days
    • FAQs
    • Learning Center
    • Tech Toolboxes
    • Webinars/Digital Events
  • Resources
    • Design Guide Library
    • DesignFast
    • LEAP Awards
    • Podcasts
    • White Papers
  • Videos
    • EE Videos & Interviews
    • Teardown Videos
  • EE Forums
    • EDABoard.com
    • Electro-Tech-Online.com
  • Engineering Training Days
  • Advertise
  • Subscribe

Plug-in element bolsters security for LPWAN Sigfox devices

February 23, 2017 By Aimee Kalnoskas Leave a Comment

STMicroelectronics announced the expansion of its STSAFE family of secure elements with the introduction of a powerful plug-and-play solution that provides state-of-the-art security features to devices connected to the Sigfox low-power wide-area network (LPWAN).

The new STSAFE-A1SX secure element (SE) is based on a tamper-resistant Common Criteria EAL5+ -certified SE technology that enhances the integrity and confidentiality of transmissions to and from the IoT device over the Sigfox network. The secure element runs an optimized secure application that combines ST‘s proven expertise in electronic security for applications in banking, e-commerce, and identity with Sigfox’s expertise in networking and data communications for the emerging IoT world.

STSAFE-A1SX is a tiny and cost-effective secure IC solution that connects to the microcontroller of the IoT application or module via an Intelligent Interface Controller (I2C) connection. The chips are provisioned in ST’s secure-personalization center with device ID and keys that allow plug-and-play secure connection to the Sigfox cloud, and further ensure data-exchange integrity and confidentiality. Whether the frame is an uplink or downlink message, the STSAFE-A1SX secure element generates or verifies payload proof of integrity as well as optional encryption or decryption. Keys and other secrets are always protected inside the secure element during manufacturing and over the end device’s full life.

“By executing Sigfox security services within our certified tamper-proof STSAFE-A1SX, we support Sigfox Ready™ device makers and Sigfox application providers to implement state-of-the-art end-to-end security,” said Laurent Degauque, Secure Microcontroller Marketing Director, Microcontroller and Digital ICs Group, STMicroelectronics. “The STSAFE-A1SX makes security over the Sigfox network even stronger and more straightforward. Our customers simply attach this secure element to their general-purpose MCU, such as an STM32, and focus on application development.”

“It’s more important than ever to consider and plan the security architecture at the very beginning of the design and development of an IoT solution,” said Laetitia Jay, CMO at Sigfox. “Working closely with STMicroelectronics has been fundamental to offering state-of-the-art certified tamper-resistant security to our ecosystem of partners and customers. The integration of the ST secure element with the Sigfox libraries, the STM32, and the S2-LP sub-1GHz transceiver, provides an ultra-low power, high performance turn-key solution that brings end-to-end security in IoT and Sensor-to-Cloud applications to the next level.”

Like other members of the STSAFE family, the STSAFE-A1SX will come with a full ecosystem of tools and software to speed its adoption by developers with or without expertise in secure designs. The device is available on expansion boards directly compliant with the popular STM32 Open Development Environment. Associated with the ST S2-LP sub-1GHz transceiver­and the STM32, ST provides a complete reference design of a Sigfox Ready device:

  • NUCLEO-L053R8, an STM32 Nucleo-64 development board with STM32L053R8 MCU
  • STEVAL-FKI868V1 sub-1GHz development kit, equipped with a low-power STM32L MCU to control the S2-LP sub-1GHz transceiver and the ST-LINK/V2-1 debugger and programmer for firmware updating
  • STSAFE-A1SX

The STSAFE-A1SX secure element is scheduled to enter production in May 2017 in both 4x5mm SO8N and 2x3mm UFDFPN8.

Filed Under: Applications, microcontroller, Security Tagged With: stmicroelectronicsinc

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Featured Contributions

What’s slowing down Edge AI? It’s not compute, it’s data movement

Five challenges for developing next-generation ADAS and autonomous vehicles

Securing IoT devices against quantum computing risks

RISC-V implementation strategies for certification of safety-critical systems

What’s new with Matter: how Matter 1.4 is reshaping interoperability and energy management

More Featured Contributions

EE TECH TOOLBOX

“ee
Tech Toolbox: EMC/EMI
EE World has assembled a collection of articles that demonstrate how to measure emissions with simple antennas. We include a review of a handheld spectrum analyzer. We also look at EMC issues with IoT devices.

EE Learning Center

EE Learning Center

EE ENGINEERING TRAINING DAYS

engineering
“bills
“microcontroller
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for EE professionals.

DesignFast

Design Fast Logo
Component Selection Made Simple.

Try it Today
design fast globle

Footer

Microcontroller Tips

EE World Online Network

  • 5G Technology World
  • EE World Online
  • Engineers Garage
  • Analog IC Tips
  • Battery Power Tips
  • Connector Tips
  • DesignFast
  • EDA Board Forums
  • Electro Tech Online Forums
  • EV Engineering
  • Power Electronic Tips
  • Sensor Tips
  • Test and Measurement Tips

Microcontroller Tips

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us

Copyright © 2025 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy