Overview

Tested procedure for recovery of GPG keys. This is for GnuPG version 2.

Procedure

1. Preparation

   Remove all existing keyrings

    rm -rf ~/.gnupg

2. Retrieve private key from secret place, copy contents into a new file ~/restore-key.asc

3. Import the keys

   Use GnuPG version 2

    gpg --import ~/restore-key.asc

   Make sure the keys are installed

    gpg --list-keys
    gpg --list-secret-keys

4. Delete the key that was imported

     rm -rf ~/restore-key.asc

5. Test the recovery

   1. Clone the blackbox demo

      cd /tmp && rm -rf blackbox-demo \
      && git clone https://github.com/deepeeess/blackbox-demo.git && cd blackbox-demo

   2. Test the ability to decrypt the file

       blackbox_decrypt_all_files
       blackbox_shred_all_files

Reference

blackbox-demo