Skip to content

Files

Latest commit

 

History

History
 
 

atecc608_ecdsa

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
 
 
 
 
 
 
 
 
Supported Targets ESP32 ESP32-S3 ESP32-C3

ECDSA sign/verify Example with ESP32 series SoC interfaced with ATECC608A

Description

(See the README.md file in the upper level 'examples' directory for more information about examples.)

This example requires ESP32 platform interfaced with Microchip's ATECC608A Secure Element.

For making the hardware connections with ATECC608A chip (Secure Element), please refer this for details.

The example performs ECDSA sign/verify functions on sample data using hardware private key stored in ATECC608A chip.

How to use example

Before project configuration and build, be sure to set the correct chip target using idf.py set-target <chip_name>.

Hardware Required

  • A development board with ESP32 series based SoC
  • ATECC608A IC based external module or dev. board.
  • A USB cable for Power supply and programming

Configure the project

Hardware should be configured to run the example, for details on configuration of ATECC608A chip, please refer esp_cryptoauth_utility

Open the project configuration menu (idf.py menuconfig).

In the Component config -> esp-cryptoauthlib menu:

  • Use Choose the type of ATECC608A chip to set the Crypto IC type [1].
  • Use Enable Hardware ECDSA keys for mbedTLS Enable Hardware ECDSA.
    • Set Enable ATECC608A sign operations in mbedTLS to use Hardware ECDSA sign.
    • Set Enable ATECC608A verify operations in mbedTLS to use Hardware ECDSA verify.
  • Set I2C SDA pin used to communicate with the ATECC608A.
  • Set I2C SCL pin used to communicate with the ATECC608A.

[1]: for more details refer Find ATECC608A chip type.

Build and Flash

Build the project and flash it to the board, then run the monitor tool to view the serial output:

Run idf.py -p PORT flash monitor to build, flash and monitor the project.

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for all the steps to configure and use the ESP-IDF to build projects.

Troubleshooting

For any technical queries, please open an issue on GitHub. We will get back to you soon.