GPG Commands

how2gpg.md

Generate your keys

Prereqs

• gpg

Create your keys with your email.

Execute following commands:

Create your keys

gpg --full-generate-key

Export your keys

gpg --output ./my_pub_key.pub --armor --export email@example.com

Import your dev friends keys

gpg --import ~/my_friend.pub

Sign a message

gpg --encrypt --sign --armor -r first.recipient@example.com -r second.recipient@example.com  ./path_to_file

or

gpg -o ./encrypted_output_file --symmetric --cipher-algo AES256 ./file_to_encrypt

Decrypt a message

gpg my_secret_message.asc

Decrypt multifiles

Deal with multifiles: encrypt: ls | gpg --multifile --encrypt or ls | gpg --encrypt-files -r <recipient>

decrypt: ls | gpg --multifile --decrypt or ls | gpg --decrypt-files

for more info gpg cheat sheet

Renew expired keys

• List keys to find expired gpg --list-keys
• Get id and edit gpg --edit-key $KEY_ID
• In gpg edit list your keys list
• Select Keys key 1 or key 0
• Renew key expire
• Save and exit save