Developer’s Guide and Usage Hints for TAPSIGNER

Setup Sequence

  1. Verify the card is legitimate (certificate check), and empty.
  2. Run new command to pick the secret.
  3. Derive your favourite path if it’s not 84h/0h/0h.
  4. Capture a backup (do not prompt for AES key, ever).
  5. Get new PIN code from user.
  6. Set the PIN.


Remember to retry sign command if you are unlucky!