# Install homebrew if you don't have it, see https://brew.sh/
#
# Then use brew to install p7zip
brew install p7zip

# Zip with no compression, just a password.
7z a -p'myPassword!!' -tzip -mem=AES256 -mm=Copy -mx=0 -mmt=8 ~/Desktop/myStuff.zip ~/Desktop/myFolder

# if you want to test, delete ~/Desktop/myFolder

# Unzip with a password.
7z x ~/Desktop/myStuff.zip -p'myPassword!!'  
open myFolder