secrets-recovery
I've been using PGP for a long time, before it was even called OpenPGP. The first PGP key I can find dates from 2000, and I have had multiple keys since then.
paperkey extracts only the secret bits of an OpenPGP secret key and therefore allows you to make a smaller backup of secret key material.
Since QR codes can only store about 3KB of data, we need
something more than "just tweak the qrencode settings". Something
like qr-backup.
include text: https://github.com/za3k/qr-backup/issues/48 remove imagemagick dep: https://github.com/za3k/qr-backup/issues/47
qr-backup just fails to print, because of missing margins: https://github.com/za3k/qr-backup/issues/49
https://github.com/za3k/qr-backup/issues?q=involves%3Aanarcat+sort%3Aupdated-desc monospace: https://github.com/za3k/qr-backup/pull/51
https://github.com/jmlemetayer/gpg2qr only does pgp, less interesting.
https://github.com/intra2net/paperbackup is interesting as well, as it has a text copy of the backup, something which qr-backup doesn't do.
paperbackup crashes because python-qrencode is desperately out of date:
https://github.com/Arachnid/pyqrencode/issues/13
but also fails to verify because of same bug as qrbackup: https://github.com/intra2net/paperbackup/issues/17
it also doesn't include good instructions in the restore:
https://github.com/intra2net/paperbackup/issues/16
nmu'd python-qrencode
https://github.com/intra2net/paperbackup/pull/18
printed first batch with paperbackup, mostly because of #49
... but could not actually recover, so going back to qr-backup.
https://sites.google.com/view/chewkeanho/guides/gnupg/delete-primary-key-master-key#h.p_N3yQQH0lmXxd
17:53:28 TIL you can specify a successor in GH account settings for when you die :-O qr-backup ITP https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1021089