Create your own Certificate Authority
A certificate authority (CA) is an entity that signs digital certificates. Many websites need to let their users know that the connection is secure, so they pay an internationally trusted CA to sign a certificate for their domain. In some cases it may make more sense to act as your own CA. Common use cases include securing an intranet website, or for issuing certificates to clients to allow them to authenticate to a server (eg, Postgresql, OpenVPN).
Using your choice of Certstrap, Easy RSA or OpenSSL, create your own Certificate Authority. The name of your CA must include your GCI username.
Download and sign the Certificate Signing Request (CSR) here
Validate both your ca.crt and the .crt you generated against the CSR by pasting the contents of each file to https://ssldecoder.org/. Upload each link to the saved results (provided at the top of the page) to the GCI system.