Skip to content

Home

Jump to bottom
KalyanCManukonda edited this page Jan 24, 2019 · 2 revisions

The Microchip ATECC608A device is a member of the CryptoAuthentication™ family of high-security cryptographic devices, which combine world-class hardware-based key storage with hardware cryptographic accelerators in order to implement various authentication and encryption protocols. ATECC608A provides a mechanism to support secure boot operations in a connected microcontroller unit (MCU) that can help identify situations in which fraudulent code has been installed on the host central processing unit (CPU).

CryptoAuthLib is a software-support library for the ATSHA204A, ATECC108A, ATECC508A and ATECC608A CryptoAuthentication devices, written in C. It is a portable, extensible, powerful and easy-to-use library for working with the ATSHA and ATECC family devices.

The SAM Boot Assistant (SAM- BA® application) allows In-System Programming (ISP) using a USB or UART host without any external programming interface.

This wiki provides an example implementation of the ATECC608A SecureBoot feature, which operates by using the SAM-BA application. During this operation, the SAMD21 device becomes the Target, which contains the SAM-BA Monitor as the Bootloader. The Bootloader uses CryptoAuthLib to verify the user application before executing it.

Package Contents

This package contains:

  • The SAM-BA monitor application
  • An example of a user application
  • Python scripts to Sign the user application and to provision the crypto-device
  • Updated applets and binary files for the SAM-BA software

Hardware and Software Requirements

In order to perform the ATECC608A SecureBoot feature demonstration, the following hardware and software requirements must be met.

Hardware Prerequisites:

  • SAMD21 Xplained Pro Evaluation Board
  • One of the CryptoAuth-XPRO socket kits (AT88CKSCKTUDFN-XPRO or AT88CKSCKTSOIC-XPRO), to be connected on EXT1
  • OLED1 Xplained Pro, to be connected on EXT3
  • One Micro-B to Type-B USB interface cable
  • CryptoAuth-XSTK for Provisioning the crypto-device

Software Prerequisites:

  • Atmel Studio 7
  • Atmel Software Framework (ASF) 3.34 or later
  • CryptoAuthLib
  • SAM-BA 2.17

Note: All pieces of software listed above can be downloaded from the Microchip website.

References

  1. Home
  2. ATECC608A Applications
  3. SecureBoot Features
  4. SAM-BA Monitor
  5. Software Implementation
    1. Using SAM-BA Monitor Application
    2. Running SAM-BA
  6. Running the Example Application
    1. Building and Downloading the SAM-BA Monitor Application
    2. Building and Downloading the User Application
    3. Provisioning the ATECC608A Device
    4. Binding the Target Board to the ATECC608A Device
    5. Verifying the SecureBoot Feature
  7. Porting to other Bootloaders
Clone this wiki locally