bash script to encrypt data using a users ssh public key.
./sshenc.sh -s ~/.ssh/id_rsa < file-containing-the-encrypted-text.txt
wget https://sshenc.sh/sshenc.sh
chmod +x sshenc.sh
./sshenc.sh -p ~/.ssh/id_rsa.pub < plain-text-file.txt > encrypted.txt
./sshencdec.sh -p ~/.ssh/id_rsa.pub -p id_rsa-alice.pub -p id_rsa-bob.pub < plain-text-file.txt > encrypted.txt
./sshencdec.sh -p <(curl -sf "https://github.com/S2-.keys" | grep ssh-rsa | tail -n1) < plain-text-file.txt
this line fetches the first public key for the github user S2- and encrypts the file plain-text-file.txt using this key.
./sshencdec.sh -s ~/.ssh/id_rsa < encrypted.txt