ESP32 Forum

Posted: **Wed Jun 22, 2022 1:18 pm**

The https_request example that is supplied works with the provided certificate even though it has expired. I retrieved the latest certificate file for https://www.howsmyssl.com/a/check using a browser and replaced the old one.
Now, the first of the 3 requests works but the last two fail with the following errors:

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I (18265) example: https_request using cacert_buf
E (18925) esp-tls-mbedtls: mbedtls_ssl_handshake returned -0x2700
I (18925) esp-tls-mbedtls: Failed to verify peer certificate!I (18925) esp-tls-mbedtls: verification info:   ! The certificate is not correctly signed by the trusted CA
 
E (18935) esp-tls: Failed to open new connection
E (18945) example: Connection failed...
 
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I (29955) example: https_request using global ca_store
W (30205) wifi:<ba-add>idx:2 (ifx:0, 94:53:30:e2:c1:b0), tid:3, ssn:0, winSize:64
E (30495) esp-tls-mbedtls: mbedtls_ssl_handshake returned -0x2700
I (30495) esp-tls-mbedtls: Failed to verify peer certificate!I (30505) esp-tls-mbedtls: verification info:   ! The certificate is not correctly signed by the trusted CA
 
E (30515) esp-tls: Failed to open new connection
E (30515) example: Connection failed...

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Retrieved Certificate for https://www.howsmyssl.com/a/check:

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I get similar behavior when trying to access our AWS servers. The OTA example also fails when I attempt to retrieve the binary from our AWS servers. It works if I spin up a Debian VM and generate a certificate file with openssl as per the instructions.

ESP32 Forum

https_request example fails with updated certificate.

https_request example fails with updated certificate.