How do I install OpenSSL in ElCaptain if my HomeBrew it's broken?
You can curl without SSL by removing the ‘s’ from ‘https’:

ruby -e "$(curl -fsSL http://raw.githubusercontent.com/Homebrew/install/master/install)"


Additionally, you could just point a web browser to the page, http://raw.githubusercontent.com/Homebrew/install/master/install and save the code to /tmp/brew.rb as a text file and then run it

ruby -e /tmp/brew.rb