esp_wifi_remote: key-pair generated by generate_test_certs.py not work in example (IDFGH-12801)

[leeebo]

Answers checklist.

• [X] I have read the documentation for esp-protocols components and the issue is not addressed there.
• [X] I have updated my esp-protocols branch (master or release) to the latest version and checked that the issue is present there.
• [X] I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

I am trying to run esp_wifi_remote examples with ESP32-P4+ESP32-C6, follow the example readme step by step:

1. generate all necessary keys and CA using generate_test_certs.py
2. copy the dumped CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CA=xxx CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CRT=xxx CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_KEY=xxx CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CA=xxx CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CRT=xxx CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_KEY=xxx to both mqtt and server example's sdkconfig.defaults
3. build and flash both chips, but encounter issues "E (3207) esp-tls-mbedtls: mbedtls_pk_parse_keyfile returned -0x3D00".

Generate keys and ca:

Server's CN: Espressif
Client's CN: client_cn
Certificate request self-signature ok
subject=CN = Espressif
Certificate request self-signature ok
subject=CN = client_cn
CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CA="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"
CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CRT="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"
CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_KEY="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"
CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CA="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"
CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CRT="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"
CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_KEY="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"

ESP32-P4 (client) log:

I (407) main_task: Started on CPU0
I (417) main_task: Calling app_main()
I (417) esp_mqtt_demo: [APP] Startup..
I (417) esp_mqtt_demo: [APP] Free memory: 597128 bytes
I (427) esp_mqtt_demo: [APP] IDF version: v5.3-dev-3225-g5a40bb8746
I (437) esp_mqtt_demo: ESP_WIFI_MODE_STA
I (447) uart: queue free spaces: 16
I (447) eppp_link: Waiting for IP address 0
I (3177) esp-netif_lwip-ppp: Connected
I (3177) eppp_link: Got IPv4 event: Interface "pppos_client(EPPP0)" address: 192.168.11.2
I (3177) esp-netif_lwip-ppp: Connected
I (3187) eppp_link: Connected! 0
E (3207) esp-tls-mbedtls: mbedtls_pk_parse_keyfile returned -0x3D00
E (3207) esp-tls-mbedtls: Failed to set client pki context
E (3207) esp-tls-mbedtls: Failed to set client configurations, returned [0x8019] (ESP_ERR_MBEDTLS_PK_PARSE_KEY_FAILED)
E (3217) esp-tls: create_ssl_handle failed
E (3217) esp-tls: Failed to open new connection
W (3227) rpc_client: Connection to RPC server failed! Will retry in 1 second(s)
E (4247) esp-tls-mbedtls: mbedtls_pk_parse_keyfile returned -0x3D00
E (4247) esp-tls-mbedtls: Failed to set client pki context
E (4247) esp-tls-mbedtls: Failed to set client configurations, returned [0x8019] (ESP_ERR_MBEDTLS_PK_PARSE_KEY_FAILED)
E (4257) esp-tls: create_ssl_handle failed
E (4257) esp-tls: Failed to open new connection
W (4267) rpc_client: Connection to RPC server failed! Will retry in 2 second(s)

ESP32-C6 (server) log:

I (457) main_task: Started on CPU0
I (457) main_task: Calling app_main()
I (467) uart: queue free spaces: 16
I (467) eppp_link: Waiting for IP address 0
I (12467) esp-netif_lwip-ppp: Connected
I (12467) eppp_link: Got IPv4 event: Interface "pppos_server(EPPP0)" address: 192.168.11.1
I (12467) esp-netif_lwip-ppp: Connected
I (12477) eppp_link: Connected! 0
I (12487) rpc_server: Socket accepted on: 192.168.11.2
E (12497) esp-tls-mbedtls: mbedtls_pk_parse_keyfile returned -0x3D00
E (12497) esp-tls-mbedtls: Failed to set server pki context
E (12507) esp-tls-mbedtls: Failed to set server configurations, returned [0x8019] (ESP_ERR_MBEDTLS_PK_PARSE_KEY_FAILED)
E (12517) esp-tls-mbedtls: create_ssl_handle failed, returned [0x8019] (ESP_ERR_MBEDTLS_PK_PARSE_KEY_FAILED)
E (12527) rpc_server: init_server(229): Failed to create TLS session
E (12527) rpc_server: init(44): Failed to init RPC engine
I (12537) main_task: Returned from app_main()

Would you please point out the problems?

[david-cermak]

There's one issue with your configuration (as the server's CN is hardcoded to espressif.local)

https://github.com/espressif/esp-protocols/blob/8f19c60c1998fb6234f881fd101c0064e37cbd8b/components/esp_wifi_remote/eppp/wifi_remote_rpc_client.cpp#L220

so you should generate the keys calling:

./managed_components/espressif__esp_wifi_remote/examples/test_certs/generate_test_certs.sh espressif.local

Which doesn't explain the error above, though. This ESP_ERR_MBEDTLS_PK_PARSE_KEY_FAILED means that mbedTLS just doesn't understand the key format. Did you copy the keys correctly, no whitespaces, properly quoted, do they appear in the generated sdkconfig.h? Maybe try cat sdkcofnig.h | grep 'CONFIG_ESP_WIFI_REMOTE_EPPP_' and compare with the generated output?

I'm also working on IDF example in !26469, here's a draft of the README from it: README.md

[leeebo]

@david-cermak The strings in sdkconfig.h are same with generated output.

❯ cat ./build/config/sdkconfig.h | grep 'CONFIG_ESP_WIFI_REMOTE_EPPP_'
#define CONFIG_ESP_WIFI_REMOTE_EPPP_UART_TX_PIN 16
#define CONFIG_ESP_WIFI_REMOTE_EPPP_UART_RX_PIN 50
#define CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CA "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"
#define CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CRT "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"
#define CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_KEY "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"
#define CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CA "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"
#define CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CRT "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"
#define CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_KEY "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"

[leeebo]

I got the same result after changing the name to "espressif.local" esp-tls-mbedtls: mbedtls_pk_parse_keyfile returned -0x3D00

[david-cermak]

I wonder why the ESP32-C6 (server) log: uses the tag esp_mqtt_demo and tries to connect to MQTT ? should be just this project: https://github.com/espressif/esp-protocols/tree/master/components/esp_wifi_remote/examples/server

[david-cermak]

I got the same result after changing the name to "espressif.local" esp-tls-mbedtls: mbedtls_pk_parse_keyfile returned -0x3D00

must be some copy-paste error. I'll try to repeat the steps from above line by line, to check if we're not missing something.

PS: You can also generate the keys and certs manually.

[leeebo]

I wonder why the ESP32-C6 (server) log: uses the tag esp_mqtt_demo and tries to connect to MQTT ? should be just this project: https://github.com/espressif/esp-protocols/tree/master/components/esp_wifi_remote/examples/server

Please ignore the previous comment (deleted now), I burned the wrong bin on Slave.

[david-cermak]

Just checked with freshly generated keys:

1) idf.py create-project-from-example "espressif/esp_wifi_remote:server"

• cd server 2) idf.py set-target esp32c6 3) ./managed_components/espressif__esp_wifi_remote/examples/test_certs/generate_test_certs.sh espressif.local 4) Open local sdkconfig and Edit:
• CONFIG_ESP_WIFI_REMOTE_EPPP_UART_* Rx, Tx from sdkconfig.ci.c6
• CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_* from step `3)
• CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_* from step 3) 5)idf.py build flash monitor 6)idf.py create-project-from-example "espressif/esp_wifi_remote:mqtt"`
• cd mqtt 7) idf.py set-target esp32p4 8) Open local sdkconfig and Edit:
• CONFIG_ESP_WIFI_REMOTE_EPPP_UART_* Rx, Tx from sdkconfig.ci.p4
• CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_* from step `3)
• CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_* from step 3) 9)idf.py menuconfig-- Setup WiFi ssid and password 10)idf.py build flash monitor`

[david-cermak]

One possible issue might be the key type, as I've set them to RSA directly in the code:

https://github.com/espressif/esp-protocols/blob/8f19c60c1998fb6234f881fd101c0064e37cbd8b/components/esp_wifi_remote/eppp/wifi_remote_rpc_client.cpp#L28

if you print out the generated key file (for example cat client.key) what is the first line? Is it:

-----BEGIN RSA PRIVATE KEY-----

---

PS: this is not very convenient, I'll probably fix it and use the entire PEM format in the configuration

[leeebo]

@david-cermak it is -----BEGIN PRIVATE KEY-----

[david-cermak]

it is -----BEGIN PRIVATE KEY-----

Oh, understand now why it doesnt' understand the format, thanks. Will fix!