GMSSL是一款支持国密算法的openssl替代库，官方网站：http://gmssl.org/
MacOS上的安装方法如下
brew install wget
wget https://github.com/guanzhi/GmSSL/archive/master.zip
unzip master.zip
cd GMSSL-master
sed -i '' 's%qw/glob%qw/:glob%g' Configure
sed -i '' 's%qw/glob%qw/:glob%g' test/build.info
make
sudo make install
ln -s /usr/local/gmssl/bin/gmssl /usr/local/bin/gmssl