STSAFE-A1SX

Secure Element for Sigfox LPWAN network

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The STSAFE-A1SX is a secure element that comes preloaded with Sigfox network keys, and provides secure services for data exchanges on the Sigfox’s low-power wide-area network (LPWAN). It constitutes a plug-and-play solution that allows Sigfox Ready™ IoT (Internet of things) devices to connect to the Sigfox network while ensuring data integrity and confidentiality. The STSAFE-A1SX is a highly secure, tamper-resistant solution that relies on a certified, secure EAL5+ Common Criteria chip, on top of which runs a dedicated secure operating system.

The STSAFE-A1SX can be integrated in IoT devices designed for the Sigfox LPWAN in applications such as industrial, utility or transportation.

Key Features

Data integrity over the Sigfox network:
- Signature of payloads before uplink
- Verification of downlink payloads
Optional data confidentiality over the Sigfox network:
- Encryption of payloads before uplink
- Decryption of downlink payloads
Security features
- Latest generation of highly secure MCUs
  - CC EAL5+ AVA_VAN5 Common Criteria certified
  - Active shield
  - Monitoring of environmental parameters
  - Protection mechanism against faults
  - Unique serial number on each die
  - Protection against side-channel attacks
- Advanced symmetric cryptography
  - AES-128
- Secure operating system
  - Secure STSAFE-A1SX kernel for authentication and data management
  - Protection against logical and physical attacks
Hardware features
- Highly secure MCU platform
- 6 Kbyte of configurable non-volatile memory
  - Highly reliable CMOS EEPROM technology
  - 30 years’ data retention at 25 °C
  - 500 000 erase/program cycles endurance at 25 °C
  - 1.62 V to 5.5 V continuous supply voltage
Protocol
- I²C-bus slave interface
  - Up to 400 Kbps transmission speed (Fast mode) and true open-drain pads
  - 7-bit addressing
Packages
- ECOPACK^®-compliant SO8N 8-lead plastic small outline and UFDFPN 8-lead ultra-thin profile fine pitch dual flat packages

Resources

Technical Documentation

Product Specifications

	Description	Version	Size
	DB3202: Authentication, data integrity and confidentiality for Sigfox Ready™ IoT devices	1.0	324 KB

Publications and Collaterals

Flyers

	Description	Version	Size
	Complete Ecosystem for Sigfox™ IoT devices	1.0	579 KB
	Optimized Secure Solution Sigfox Ready™ IoT devices	1.0	575 KB

Brochures

Description	Version	Size
Make LoRa® easy and secure	1.0	1 MB
Making Sigfox devices easy and secure	1.0	1 MB
STSAFE - Secure Solutions for IoT	1.0	1 MB

Tools and Software

Embedded Software

MCU & MPU Embedded Software

Part Number	Manufacturer	Description
Sigfox Connectivity	Sigfox	Sigfox IoT connectivity feed your innovation strategy and make the digital transformation of your business a reality. Sigfox IoT connectivity brings value in various business activities. With the continued miniaturization of sensors and technologic advancements such as energy harvesting, we will witness a continuous ow of data, merging the physical world to the digital world.
Sigfox Geolocation	Sigfox	Sigfox Geolocation, the simplest and most efficient IoT location service. Sigfox Geolocation is a low-energy location service for all devices equipped with the simplest Sigfox module, without GPS. There is no need to retrofit to upgrade specific hardware, or to update software: Sigfox can now provide a location for all existing and future devices all over the world.

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Sample & Buy

Part Number	Marketing Status	Quantity	Unit Price (US$) *	Package	Packing Type	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
STSAFE-A1SX	Active : Product is in volume production	-	-	DICE	Not Applicable	3A991A2	-	MORE INFO		No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

Quality & Reliability

Part Number	Marketing Status	Package	RoHS Compliance Grade	Material Declaration**
STSAFE-A1SX	Active	DICE	N/A

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.