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feat(esp-tls): Add unified private key interface via esp_key_config_t

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Add ESP_KEY_SOURCE_BUFFER and ESP_KEY_SOURCE_PSA key sources so all
hardware backends (DS, ECDSA, secure element) are accessed via PSA
key IDs through a single esp_tls_cfg_t.client_key field.
This commit is contained in:
Aditya Patwardhan
2026-04-08 18:37:10 +05:30
parent d51e467e7c
commit 36090b7161
17 changed files with 270 additions and 236 deletions
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61
components/esp_https_server/src/https_server.c
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@@ -348,48 +348,47 @@ static esp_err_t create_secure_context(const struct httpd_ssl_config *config, ht
#endif
}
/* Pass on secure element boolean */
cfg->use_secure_element = config->use_secure_element;
if (!cfg->use_secure_element) {
if (config->use_ecdsa_peripheral) {
if (config->use_ecdsa_peripheral) {
#ifdef CONFIG_MBEDTLS_HARDWARE_ECDSA_SIGN
(*ssl_ctx)->tls_cfg->use_ecdsa_peripheral = config->use_ecdsa_peripheral;
(*ssl_ctx)->tls_cfg->ecdsa_key_efuse_blk = config->ecdsa_key_efuse_blk;
(*ssl_ctx)->tls_cfg->use_ecdsa_peripheral = config->use_ecdsa_peripheral;
(*ssl_ctx)->tls_cfg->ecdsa_key_efuse_blk = config->ecdsa_key_efuse_blk;
#if SOC_ECDSA_SUPPORT_CURVE_P384
(*ssl_ctx)->tls_cfg->ecdsa_key_efuse_blk_high = config->ecdsa_key_efuse_blk_high;
(*ssl_ctx)->tls_cfg->ecdsa_key_efuse_blk_high = config->ecdsa_key_efuse_blk_high;
#endif
(*ssl_ctx)->tls_cfg->ecdsa_curve = config->ecdsa_curve;
(*ssl_ctx)->tls_cfg->ecdsa_curve = config->ecdsa_curve;
#else
ESP_LOGE(TAG, "Please enable the support for signing using ECDSA peripheral in menuconfig.");
ret = ESP_ERR_NOT_SUPPORTED;
goto exit;
ESP_LOGE(TAG, "Please enable the support for signing using ECDSA peripheral in menuconfig.");
ret = ESP_ERR_NOT_SUPPORTED;
goto exit;
#endif
} else if (config->prvtkey_pem != NULL && config->prvtkey_len > 0) {
cfg->serverkey_buf = malloc(config->prvtkey_len);
} else if (config->server_key != NULL) {
/* Unified key config - pass directly to esp_tls */
cfg->server_key = config->server_key;
} else if (config->prvtkey_pem != NULL && config->prvtkey_len > 0) {
cfg->serverkey_buf = malloc(config->prvtkey_len);
if (cfg->serverkey_buf) {
memcpy((char *) cfg->serverkey_buf, config->prvtkey_pem, config->prvtkey_len);
cfg->serverkey_bytes = config->prvtkey_len;
} else {
ESP_LOGE(TAG, "Could not allocate memory for server key");
ret = ESP_ERR_NO_MEM;
goto exit;
}
if (cfg->serverkey_buf) {
memcpy((char *) cfg->serverkey_buf, config->prvtkey_pem, config->prvtkey_len);
cfg->serverkey_bytes = config->prvtkey_len;
} else {
ESP_LOGE(TAG, "Could not allocate memory for server key");
ret = ESP_ERR_NO_MEM;
goto exit;
}
} else {
#if defined(CONFIG_ESP_HTTPS_SERVER_CERT_SELECT_HOOK)
if (config->cert_select_cb == NULL) {
ESP_LOGE(TAG, "No Server key supplied and no certificate selection hook is present");
ret = ESP_ERR_INVALID_ARG;
goto exit;
} else {
ESP_LOGW(TAG, "Server key not supplied, make sure to supply it in the certificate selection hook");
}
#else
ESP_LOGE(TAG, "No Server key supplied");
if (config->cert_select_cb == NULL) {
ESP_LOGE(TAG, "No Server key supplied and no certificate selection hook is present");
ret = ESP_ERR_INVALID_ARG;
goto exit;
#endif
} else {
ESP_LOGW(TAG, "Server key not supplied, make sure to supply it in the certificate selection hook");
}
#else
ESP_LOGE(TAG, "No Server key supplied");
ret = ESP_ERR_INVALID_ARG;
goto exit;
#endif
}
return ret;