Skip to content

Instantly share code, notes, and snippets.

@ourobouros
Forked from pkirkovsky/yubikey-reset.sh
Created September 21, 2021 16:33
Show Gist options
  • Save ourobouros/87a95cbb163545ba5b94275f34bd6cf0 to your computer and use it in GitHub Desktop.
Save ourobouros/87a95cbb163545ba5b94275f34bd6cf0 to your computer and use it in GitHub Desktop.
Utility for resetting a Yubikey to factory defaults using gpg-connect-agent. This will wipe out any stored keys and reset PINs to default values.
gpg-connect-agent <<EOF
/hex
scd serialno
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 e6 00 00
scd apdu 00 44 00 00
/echo Yubikey has been successfully reset.
/echo The factory default PINs are 123456 (user) and 12345678 (admin).
EOF
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment