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feat: enabled ECDSA-P192 support for ESP32H2

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nilesh.kale
2025-05-13 17:01:07 +05:30
parent 452e609dcc
commit 6c290c09f3
15 changed files with 223 additions and 11 deletions
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docs/en/api-reference/peripherals/ecdsa.rst
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@@ -60,6 +60,22 @@ Following code snippet uses :cpp:func:`esp_efuse_write_key` to set physical key
}
.. only:: SOC_ECDSA_P192_CURVE_DEFAULT_DISABLED
ECDSA Curve Configuration
-------------------------
.. only:: esp32h2
The ECDSA peripheral of the ESP32-H2 supports both ECDSA-P192 and ECDSA-P256 operations. However, starting with ESP32-H2 revision 1.2, only ECDSA-P256 operations are enabled by default. You can enable ECDSA-P192 operations using the following configuration options:
- :ref:`CONFIG_ESP_ECDSA_ENABLE_P192_CURVE` enables support for ECDSA-P192 curve operations, allowing the device to perform ECDSA operations with both 192-bit and 256-bit curves. However, if ECDSA-P192 operations have already been permanently disabled during eFuse write protection, enabling this option can not re-enable ECDSA-P192 curve operations.
- :cpp:func:`esp_efuse_enable_ecdsa_p192_curve_mode()` enables ECDSA-P192 curve operations programmatically by writing the appropriate value to the eFuse, allowing both P-192 and P-256 curve operations. Note that this API will fail if the eFuse is already write-protected.
Non-Determinisitic Signature Generation
---------------------------------------
Dependency on TRNG
------------------