This site provides public certificate authority files used for certificate validation and revocation checking.
http://pki.thelightsource.com/pki/TLS-Root-CA-2026.cer
http://pki.thelightsource.com/pki/TLS-Sub-CA-2026.cer
http://pki.thelightsource.com/pki/TLS-Root-CA-2026.crl
http://pki.thelightsource.com/pki/TLS-Sub-CA-2026.crl