Openfire 3.8.2 and wildcard domain certificate

Openfire Openfire Support
1

Hi,

I installed latest stable Openfire 3.8.2 in Debian 6.0.7 amd64 Linux. I make initial server configuration with self-signed certificates, but now i wish to add wildcard domain certificate to openfire server.

I read documentation (http://www.igniterealtime.org/builds/openfire/docs/latest/documentation/ssl-guid e.html), and want use internal web interface to add certificate.

Now in openfire control pannel i see 2 self-signed certs:

*.mydomain.com (mydomain.com_rsa) Jun 26, 2018 Self-signed certificates should be signed by a Certificate Authority to be trusted and accepted by clients and other servers. Self signed RSA
2.
*.mydomain.com (mydomain.com_dsa) Jun 26, 2018 Self-signed certificates should be signed by a Certificate Authority to be trusted and accepted by clients and other servers. Self signed DSA

I have files:

mydomain.com.ca

mydomain.com.crt

mydomain.com.csr

mydomain.com.key

mydomain.com.pem

Which files i should use to add certs in OpenFire control pannel? (Server Settings - Server Certificates)