The Adafruit Infineon Trust M Breakout features the OPTIGA Trust M (SLS 32AIA) secure element — a hardware crypto authentication chip that stores private keys securely, performs cryptographic operations, and generates true random numbers. It communicates over I2C via STEMMA QT / Qwiic connectors for easy solderless integration.

OPTIGA Trust M is the next generation of Infineon's Trust X platform, adding RSA 1K/2K support alongside ECC NIST P256/P384. With 4.5 KB of user memory, it provides a robust hardware security foundation for IoT devices, secure boot, and certificate-based authentication.

Key Features

• OPTIGA Trust M (SLS 32AIA) – Hardware secure element for cryptographic authentication
• ECC NIST P256/P384 – Elliptic curve cryptography for key agreement and digital signatures
• RSA 1024/2048 – RSA key generation and operations
• SHA-256 – Hardware-accelerated secure hashing
• TRNG & DRNG – True and deterministic random number generation
• 4.5 KB User Memory – On-chip storage for certificates, keys, and configuration data
• STEMMA QT / Qwiic Connectors – Solderless I2C connection with daisy-chain support
• Breadboard-Friendly – 0.1" header included; four 2.5 mm mounting holes

Ideal For

• IoT device authentication and secure boot
• Private key storage and certificate management
• True random number generation for embedded security
• Secure communication and data integrity verification

Package Contents

• 1× Adafruit Infineon Trust M Breakout Board
• 1× 0.1" Header Strip

Resources

• OPTIGA Trust M Arduino Library (GitHub)