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GPG Cheatsheet 🛡️

🔑 Key Management

Generate a new GPG key pair:

gpg --full-generate-key

List all keys in your GPG keyring:

gpg --list-keys

List all the secret keys in your GPG keyring:

gpg --list-secret-keys

🔒 Message Encryption and Decryption

Encrypt a message:

gpg -e -u "your-email@example.com" -r "recipient@example.com" message.txt

Decrypt a message:

gpg -o decrypted-message.txt -d message.txt.gpg

📁 GPG Folder Encryption Cheat Sheet

Encrypting a Folder

Create a tarball from the folder you want to encrypt:

tar -czvf archive.tar.gz /path/to/folder_to_encrypt

<li><strong>Encrypt the tarball using GPG:</strong></li>
<code>gpg -e -r your-email@example.com archive.tar.gz</code>

Decrypting a Folder

Decrypt the GPG file to a tarball:

gpg -o archive.tar.gz -d archive.tar.gz.gpg

<li><strong>Extract the tarball to the original folder:</strong></li>
<code>tar -xzvf archive.tar.gz</code>

✉️ Encrypting a Message for Yourself: [Different Method]

Generate a Key Pair:

gpg --gen-key

<li><strong>Encrypt the Message:</strong></li>
<code>gpg -e -u "Your Name" -r "Your Name" message.txt</code>

<li><strong>Decrypt the Message:</strong></li>
<code>gpg -d message.txt.gpg</code>

👥 Encrypting a Message for Someone Else:

Import Their Public Key:

gpg --import theirkey.gpg

<li><strong>Encrypt the Message:</strong></li>
<code>gpg -e -u "Your Name" -r "Their Name" message.txt</code>

🔄 Exporting & Importing Keys

Exporting Your Public Key:

List your keys to find the one you want to export: