The certificate is not correctly signed by the trusted CA

kubera
Posts: 8
Joined: Wed May 20, 2020 10:21 am

The certificate is not correctly signed by the trusted CA

Postby kubera » Fri May 22, 2020 12:59 pm

Hi iam trying to implement native ota example to azre iot hub. I generated ca certificate from https://www.sslforfree.com/

but iam stucked with this error.

..........................................................................................................................................................
E (9482) esp-tls: mbedtls_ssl_handshake returned -0x2700
I (9482) esp-tls: Failed to verify peer certificate!
I (9482) esp-tls: verification info: ! The certificate is not correctly signed
by the trusted CA

E (9492) esp-tls: Failed to open new connection
E (9492) TRANS_SSL: Failed to open a new connection
E (9502) HTTP_CLIENT: Connection failed, sock < 0
E (9502) native_ota_example: Failed to open HTTP connection: ESP_ERR_HTTP_CONNEC
T
E (9512) native_ota_example: Exiting task due to fatal error...

...............................................................................................................................................................

What iam doing wrong?
Is there anything to do with cipher suits?

kubera
Posts: 8
Joined: Wed May 20, 2020 10:21 am

Re: The certificate is not correctly signed by the trusted CA

Postby kubera » Sat May 23, 2020 8:28 am

a small correction I have been testing with azure app services not with specific device. i have a get url in the app services from where iam trying to download the bin file. But certficate is not gettng verfied.


kubera
Posts: 8
Joined: Wed May 20, 2020 10:21 am

Re: The certificate is not correctly signed by the trusted CA

Postby kubera » Fri May 29, 2020 7:34 am

I tried to check the ca-cert file using the link provided by you. It has gone well. but when I tried to verify the cert using OpenSSL verify ca_cert.pem in the OpenSSL command-line it got failed.
It shows ----
"
error 18 at 0 depth lookup: self-signed certificate.
error ca_cert.pem: verification failed.

"

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