You can perform a quick test of your certificate using the OpenSSL.
Procedure
To test the CA certificate, execute the following command:
openssl s_client -connect kmip-interop.vormetric.com:5696 -showcerts -CAfile 1.2.3.4_CA.pem
The command output appears on the screen. Look for the following text in the last line of the output:
Verify return code: 0 (ok)
The above text confirms that the certificate file is valid.