ucryptoauthlib

Lightweight driver for Microchip Crypto Authentication secure elements written in pure python for micropython.

WARNING: this project is in beta stage and is subject to changes of the code-base, including project-wide name changes and API changes.

Features

• Allows PyBoard to control Microchip Crypto Authentication secure elements

Usage

• TESTS:

MicroPython v1.9.4-679-ge328a5d46-dirty on 2018-10-29; PYBv1.1 with STM32F405RG
Type "help()" for more information.
>>> import ateccX08a; ateccX08a.test()
INFO:ateccX08a <ATECCX08A address=0x60 retries=20 device=ATECC608A>
INFO:ateccX08a INFO SUCCEDED
INFO:ateccX08a SHA SUCCEDED
INFO:ateccX08a RANDOM SUCCEDED
INFO:ateccX08a NONCE SUCCEDED
INFO:ateccX08a READ SUCCEDED
>>> 

Enable DEBUG:

import logging
logging.basicConfig(level=logging.DEBUG)
import ateccX08a

External dependencies

Only for tests: 'logging' already available into folder 'micropython-lib' of this repository

Install 'cryptoauthlib' into the PyBoard

• Copy 'cryptoauthlib' into PyBoard's filesystem

Software

Currently supported commands are:

• INFO

• LOCK

• NONCE

• RANDOM

• READ (1)

• SHA (1)

• WRITE (1)

• VERIFY (1)

  (1) Not all features are implemented

Hardware

Currently supported devices are:

• ATECC508A
• ATECC608A