Adding CACert root certificates to your Slackware
Long before the “letsencrypt” initiative, we already had another free and open Certificate Authority, called CACert.org. CACert is community driven, and uses ‘assurers’ who personally verify users’ identities, thereby building a “web of trust”. Unfortunately, the big players on the Internet (Google, Mozilla, Microsoft) have always refused to accept and incorporate the CACert root certificate into their browsers. Instead, after many years of imploring these companies to add CACert as a trusted Certificate Authority without any success, they spat in the face of the community and launched their own alternative for free SSL certificates: letsencrypt.
And therefore, even today, a site that uses a CACert-issued SSL certificate is flagged by browsers as untrustworthy. In my opinion. this refusal to accept a community-driven security initiative is nothing short of bullying.
My own server, bear.alienbase.nl, uses a CACert-issued certificate. Folks, it is secure to use https on it! Even when Chrome or Firefox says it is not. So, how to fix that bogus warning message?
For Firefox, just add an exception for the SSL certificate. For Chrome and for the OS in general: import the CACert certificates as follows:
Add the CACert root and class3 certificates to your Linux system. As the root user you download the two .crt files, copy them to /etc/ssl/certs and generate openssl hashes (I used backslashes to indicate that some lines are wrapping because the text would otherwise not be visible on this page):
# cd /tmp # mkdir CACert # cd CACert/ # wget -O cacert-root.crt http://www.cacert.org/certs/root.crt # wget -O cacert-class3.crt http://www.cacert.org/certs/class3.crt # cp -ia cacert-*.crt /etc/ssl/certs/ # cd /etc/ssl/certs/ # ln -s cacert-root.crt \ `openssl x509 -noout -hash -in cacert-root.crt`.0 # ln -s cacert-class3.crt \ `openssl x509 -noout -hash -in cacert-class3.crt`.0
Then add the CACert root certificate to your Chromium browser. Do the following as your regular user account in addition to the steps you just took under the root account (see also http://wiki.cacert.org/FAQ/BrowserClients#Linux)
$ cd /tmp/CACert/ $ certutil -d sql:$HOME/.pki/nssdb \ -A -t TC -n "CAcert.org" -i cacert-root.crt $ certutil -d sql:$HOME/.pki/nssdb \ -A -t TC -n "CAcert.org Class 3" -i cacert-class3.crt
And you’ll end up with a trusted site next time you visit my ‘bear’ server: