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feat(ecc): enable ECC constant time mode for ESP32-H2 ECO5

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This commit is contained in:
Mahavir Jain
2024-10-22 15:17:16 +05:30
committed by Aditya Patwardhan
parent d4bb0e2aa3
commit e97c51ea24
15 changed files with 166 additions and 6 deletions
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13
components/efuse/src/esp_efuse_startup.c
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@@ -95,6 +95,19 @@ static esp_err_t init_efuse_secure(void)
}
#endif
#if CONFIG_ESP_CRYPTO_FORCE_ECC_CONSTANT_TIME_POINT_MUL
bool force_constant_time = true;
#if CONFIG_IDF_TARGET_ESP32H2
if (!ESP_CHIP_REV_ABOVE(efuse_hal_chip_revision(), 102)) {
force_constant_time = false;
}
#endif
if (!esp_efuse_read_field_bit(ESP_EFUSE_ECC_FORCE_CONST_TIME) && force_constant_time) {
ESP_EARLY_LOGD(TAG, "Forcefully enabling ECC constant time operations");
ESP_RETURN_ON_ERROR(esp_efuse_write_field_bit(ESP_EFUSE_ECC_FORCE_CONST_TIME), TAG, "Failed to enable ECC constant time operations");
}
#endif
#if CONFIG_SECURE_DISABLE_ROM_DL_MODE
// Permanently disable ROM download mode
ESP_RETURN_ON_ERROR(esp_efuse_disable_rom_download_mode(), TAG, "Failed to disable ROM download mode");