$ brew install openssl
==> Downloading http://openssl.org/source/openssl-1.0.1e.tar.gz
Already downloaded: /Library/Caches/Homebrew/openssl-1.0.1e.tar.gz
==> perl ./Configure --prefix=/usr/local/Cellar/openssl/1.0.1e --openssldir=/usr/local/etc/openssl zlib-dynamic shared darwin64-x86_64-cc
==> make