Secure element ATECC508C-TCSM for HTTPS and MQTTS in ESP-IDF

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Secure element ATECC508C-TCSM for HTTPS and MQTTS in ESP-IDF

Postby Username1 » Thu Feb 05, 2026 2:45 pm

ESP_IDF v5.5.2

ESP32-S3

I enabled the menuconfig option and enabled httpd_ssl_config.use_secure_element.

Then I need to pass the signed cert to httpd_ssl_config.servercert, but my cert is partially stored in the SE and the other portion is defined as a constant, in order to assemble it I need to extract the portion stored in the SE and to do that I need to init the device, but httpd_ssl_start also inits the device.

Is it because the implementation of SE in ESP-IDF doesn't take in consideration the ability to store signed certificate internally and only focus on private key interactions or am I doing something wrong?

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