If this is not the case (eg. you have a self-signed or some other custom certificate on the server), you really need to install the certificate on your client system before the mentioned classes can validate server certificate properly. You can read about certificates and how they are used in SSL here.
He reads the digital signature (from the certificate) He knows which algorithm used to create this signature, and he runs the hash again over my certificate data; Client uses his public key (in his store) of Verisign to decode (not decrypt) the digital signature; if there is a match - all fine. How Much Does a SSL Certificate Cost? | HowMuchIsIt.org Aug 09, 2018 Symantec Root Certificate Licensing, Use and Download Root 1. VeriSign Class 3 Public Primary CA – G3 Description: This 2048 bit root CA is not used in present days and should be included in the root store.It is used for secure client certificates, but it is expected to be utilized in the future for SSL and Code Signing Service for certain applications. CA files for Verisign SSL certificate on ITS MYSQL servers From the beginning of its existence, the CAT1 service was configured to use Verisign SSL certificates. The published method for connecting to our MySQL service requires that the server and the client have matching Certificate Authority files referenced in the config file of the mysql instance and in the connection string of the client.
Update VeriSign Web Server Certificates Now for IIS: An
When your device or other client attempts to connect to AWS IoT Core, the AWS IoT Core server will send an X.509 certificate that your device uses to authenticate the server. Authentication takes place at the TLS layer through validation of the X.509 certificate chain This is the same method used by your browser when you visit an HTTPS URL.
Installing an S/MIME Certificate and Sending Secure Email
Server authentication - AWS IoT