QUICK INFO:

• Asymmetric encryption: key pair (Private, Public); the recipient sends his Public key to the sender

• Command to import a Public Key:

  • gpg --import KEY_FILE

• Command to encrypt a file for a recipient:

  • gpg  --sign --local-user KEY_ID --encrypt --armor --recipient  EMAIL_OF_RECIPIENT --recipient SENDER_EMAIL --output  NAME_ENCRYPTED_FILE.txt.asc NAME_DECRYPTED_FILE.txt

• Command to read the encrypted file on screen:

  • cat NAME_ENCRYPTED_FILE.txt.asc

• To decrypt a file encrypted with our Public Key:

  • gpg --decrypt NAME_ENCRYPTED_FILE.txt.asc > NAME_DECRYPTED_FILE.txt

• Command to read the decrypted file on screen:

  • cat NAME_DECRYPTED_FILE.txt