http://bkg5ofjslnbyqvu55sjonpdyp3wmfsgq23u7vpk3wxn7ewgdeocpgwid.onion?page=article&article=Secure+Collaboration%3A+Encrypting+Group+Communication+with+GPG.html
Step 1: Ensure All Public Keys are Imported First, ensure that you’ve imported the public keys of everyone you want to send an encrypted message to. For example, to import Alice's, Bob's, and Charlie’s keys: gpg --import alice_public_key.asc
gpg --import bob_public_key.asc
gpg --import charlie_public_key.asc Step 2: Encrypting the Message for Multiple Recipients Now, when you want to encrypt a message for these three users, specify each recipient’s public key with the --recipient flag: gpg...