Share your secrets securely over the wire.
Ask the person who'd recieve your secret to do the following, ask them to create a public/private key pair if they do not already have one.
curl -s https://gist.githubusercontent.com/bitsapien/bbc8cb877984f4ad5141dea0163072ba/raw/gen_pub_key.sh | bash /dev/stdin <PATH-TO-PRIVATE-KEY>