I can't to use ca.crt, client.crt, client.key (X509 certificate) to connect mqtt broker.

[jamwu1991]

Hi everyone

I want to use ca.crt, client.crt, client.key to connect mqtt broker.

My code like following:

    client = MQTTClient(clientId)
    print("Before ", client.is_connected)
    contextInstance = ssl.SSLContext(ssl.PROTOCOL_TLSv1_2)
    contextInstance.load_default_certs()
    contextInstance.load_verify_locations(cafile=tls_CERT_PATH, cadata=None, capath=None)
    contextInstance.verify_mode =ssl.CERT_REQUIRED
    contextInstance.load_cert_chain(certfile=tls_CLIENT_PATH, keyfile=tls_CLIENTKEY_PATH)
    contextInstance.check_hostname=False
    result = await client.connect(host=broker,port=port,ssl=contextInstance)
    print("Result ", result)
    print("client.is_connected ", client.is_connected)

And the execute result is:

Before  False

The execute is stop at the following line code

result = await client.connect(host=broker,port=port,ssl=contextInstance)

Can someone tell me how to fix it?

Thanks for your watching and any idea.

The X509 certificate file content is: ca.crt -> Just a ca certificate. Content as following

-----BEGIN CERTIFICATE-----
content message
-----END CERTIFICATE-----

client.crt -> Just a client certificate. Content as following

-----BEGIN CERTIFICATE-----
content message
-----END CERTIFICATE-----

client.key -> Just a client key. Content as following

-----BEGIN PRIVATE KEY-----
content message
-----END PRIVATE KEY------

[Mixser]

Hi, thanks for the issue. Please clarify your env (os, broker version).

By the way we have already faced with a same issue in the past, please try to read and may be it will help you https://github.com/wialon/gmqtt/issues/122#issuecomment-762448887