I am new to certificate formats. I have (PKCS8) certificate file with pem format and extension (I believe it is full chain, please keep me honest here). I want to generate .crt cert file along with .pub public key.This will be installed on the Apache server.I have searched on how to do this but it seems like most people have/use DER. How do I achieve this? Thank you in advance. Here is how the downloaded certificate looks.
subject=CN=dibdib.dubdub.com, OU=Client01, O=Company Incorporated, L=Newyork, C=BE
issuer=CN=Entrust Certification Authority - L1K, OU="(c) 2012 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
-----BEGIN CERTIFICATE-----
***********************************************
-----END CERTIFICATE-----
subject=CN=Entrust Certification Authority - L1K, OU="(c) 2012 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
issuer=CN=Entrust Root Certification Authority - G2, OU="(c) 2009 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
-----BEGIN CERTIFICATE-----
*****************************************************
-----END CERTIFICATE-----
subject=CN=Entrust Root Certification Authority - G2, OU="(c) 2009 Entrust, Inc. - for authorized use only", OU=See www.entrust.net/legal-terms, O="Entrust, Inc.", C=US
issuer=CN=Entrust Root Certification Authority, OU="(c) 2006 Entrust, Inc.", OU=www.entrust.net/CPS is incorporated by reference, O="Entrust, Inc.", C=US
-----BEGIN CERTIFICATE-----
*****************************************************
-----END CERTIFICATE-----
subject=CN=Entrust Root Certification Authority, OU="(c) 2006 Entrust, Inc.", OU=www.entrust.net/CPS is incorporated by reference, O="Entrust, Inc.", C=US
issuer=CN=Entrust Root Certification Authority, OU="(c) 2006 Entrust, Inc.", OU=www.entrust.net/CPS is incorporated by reference, O="Entrust, Inc.", C=US
-----BEGIN CERTIFICATE-----
*****************************************************
-----END CERTIFICATE-----