After configuring the certificate you restart a Xampp Apache server and you get an error saying wrong tag, OLD_RSA_PRIV_DECODE, nested asn1 error, etc.
RSA Private Key Configuration Issue
When you have an Apache Server on Windows OS and after installing the private key and the SSL certificate on the Apache Server you get an error of "Unable to configure RSA server private key" or "key values mismatch"
AH02007: SSL Handshake Issue
When you face an error of SSL handshake after configuring the SSL certificate, then the error might occur due to variour reasons such as incorrect protocol setup, weak cipher setup, by keeping ssl_mod off, etc