I checked SSL support for all BOINC projects yesterday in the following thread:
The users in the thread suggested reaching out to all affected projects, so here I am!
Csgrid.org has no SSL/HTTPS support: https://www.ssllabs.com/ssltest/analyze.html?d=csgrid.org
Are there any plans to implement SSL/HTTPS support?
I used letsencrypt on my own website & received an A+ rating. It was free and took an hour max to setup a valid HTTPS certificate. https://letsencrypt.org/