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README.md
Supported Targets | ESP32 |
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ECDSA sign/verify Example with ESP32-WROOM-32SE
Description
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example requires ESP32-WROOM-32SE which has Microchip's ATECC608A (Secure Element) integrated on the module.
The example performs ECDSA sign/verify
functions on sample data using hardware private key stored in ATECC608A chip. If you want to use bare ATECC608A
chip (Secure Element) with ESP32-WROOM-32
module by making external connections, please refer this for details.
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
To get started you will need a ESP32-WROOM-32SE
development board which integrates Microchip’s ATECC608A CryptoAuth chip in the module.
- A development board with ESP32-WROOM-32SE SoC or an custom board with the
ATECC608A
IC. - A USB cable for Power supply and programming
Configure the project
ATECC608A chip on ESP32-WROOM-32SE 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
- 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.