Cryptographic Co-Processor ATECC508A (Qwiic) Hookup Guide

Contributors: QCPete

Resources and Going Further

Now that you've sent signed message between two systems, you are ready to integrate some security into your projects! In these examples we have used hard-wired serial messages between two Arduinos. That communication channel could be anything: Bluetooth, RFM69s, Wifi and the internet, you name it! Good luck!

• Schematic (PDF)
• Eagle Files (ZIP)
• Github (Hardware)
• Github (Arduino Library)
• Microchip ATECC508A DataSheet (PDF)
• CryptoAuthLib - Microchip CryptoAuthentication Library (includes python support)
• Board Dimensions (PDF) or (PNG)
• Product Video

Additional Documentation on the Cryptographic Standards (linked from datasheet):

• SHA-256 Algorithm
• HMAC Algorithm
• Elliptic Curve Digital Signature Algorithm (ECDSA)
• Elliptic Curve Diffie-Hellman (ECDH) Key Agreement (Revision 2)
• Elliptic Curve Diffie-Hellman (ECDH) Key Agreement (Revision 2- Draft)
• Diversified Keys
• NIST CAVP certification of the RNG

Need inspiration? Check out some of the Qwiic or IoT related tutorials!