ST Life.augmented


Brand protection solution for peripheral authentication
  • active Active

AuKey is a highly advanced flexible security architecture supporting symmetric and asymmetric cryptography. It is implemented as a secure operating system running on the latest generation secure microcontrollers and providing authentication and secure data management services to the host application processor.

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Errata Sheet
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Data Brief

Key Features

  • Key functions
  • Peripheral authentication
  • Secure data read/write from/to peripheral
  • Secure counters
  • Configurable key management
  • Customizable security architecture
  • Configurable memory partitioning
  • Security
  • Latest generation of STMicroelectronics highly secure ST23 MCUsActive shieldMonitoring of environmental parametersProtection mechanism against faultsUnique serial number on each die
  • Advanced cryptographyAES (Advanced Encryption Standard) for symmetric architectureRSA (Rivest, Shamir and Adleman) or ECC (elliptic curve) for asymmetric architecture
  • Secure operating systemSecure Aukey kernel for authentication and data managementLife cycle management and secure personalizationProtection against logical and physical attacks
  • Hardware
  • Highly secure ST23 MCU platform
  • 1 to 18 Kbyte configurable non-volatile memoryHighly reliable CMOS EEPROM submicron technology10 years data retention500,000 erase / program cycles endurance typical at 25 °C1 to 32 bytes erase / program in 1.5 ms3 to 5 V supply voltage range
  • Protocol
  • I²C serial interface100 kbit/s transmission speedUp to 128 peripherals on single bus
  • Package
  • ECOPACK®SO8N 8-lead plastic small outline

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB0923: AuKey for brand protection state-of-the-art security for peripheral authentication
2.0 181 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
AuKeyActiveDICENot Applicable-No availability reported, please contact our Sales officeN/A-

(*) 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
(**) The Material Declaration forms available on 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.
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