Android Question OKHttp TLS1.2 Android4.0

InitializeAcceptAll will not help if your device doesn't support the server chosen algorithm.

You can update the supported security provider as explained here: https://www.b4x.com/android/forum/threads/ssl-websocket-client.88472/page-2#post-560044

It will be simpler to use an Android 5+ device.

Erel said:

InitializeAcceptAll will not help if your device doesn't support the server chosen algorithm.

You can update the supported security provider as explained here: https://www.b4x.com/android/forum/threads/ssl-websocket-client.88472/page-2#post-560044

It will be simpler to use an Android 5+ device.

Click to expand...

Thanks. After using .InitializeAcceptAll, the httpjob works fine. According to your explanation the device does support the chosen algorithm.

Should I look for an incorrect installation of the certificate? My device with android 8 and 9 are working fine with standaard library of OKHttp.

I will try using the update of the security provider.

Best regards,
André

You haven't provided enough information for us to help you. Where is the error message?

Erel said:

You haven't provided enough information for us to help you. Where is the error message?

Click to expand...

Of course, sorry. The message is:
ResponseError. Reason: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.

Best regards,
André

The question in the first post and this error are not related. This error happens because the certificate authority is not recognized by the device.