This is emerSSL support site. You can create and maintain your emerSSL certificate within Emercoin core wallet GUI, tab "Manage Names/SSL". Also, you can create and maintain certificate with set of shell-scripts, available on project Github repository.Wallet GUI does not support InfoCard yet, InfoCard can be created with shell scripts only.
There is several echo-tests. You can test your emerSSL certificate with these echo programs, or use their sources as examples for implement emerSSL on your WEB-server.
Note: By default, emerSSL GUI and scripts generates certificates with ECDSA signature. However, some OSes
(for instance MacOS 10.10.5) cannot work with ECDSA, and you unable upload this certificate to Safari or
Chrome on MacOS (details).
If so, you can generate old style RSA certificate by using optional paremeter 2 in gen_crt.sh:
$ ./gen_crt.sh your_template.tpl RSA
Where is used emerSSL: