Hi David!
The following issue has been reported against the Debian package of
paperkey (1.3) at https://bugs.debian.org/879512 -- paperkey 1.4 is
also affected.
It seems paperkey is unable to deal with ed25519 keys:
| weasel@orinoco:~/gnupghome$ gpg --list-key
| /home/weasel/gnupghome/pubring.kbx
| ----------------------------------
| pub ed25519 2017-10-22 [SC] [expires: 2019-10-22]
| 83EE1EE4EAA6BA37A4786292C66129D09E62C462
| uid [ultimate] test1
|
| pub rsa2048 2017-10-22 [SC] [expires: 2019-10-22]
| ABBC80F0A6340158E0E4559B42FA0478A3CC80F1
| uid [ultimate] test2
|
| weasel@orinoco:~/gnupghome$ gpg --export-secret-keys test1 | paperkey
| Unable to parse algorithm 22
| e1:weasel@orinoco:~/gnupghome$
With an ed25519 master key, no segfault happens. With an rsa master and
an ed25519 subkey, I have observed segfaults, as also reported by Osamu
Aoki.
Cheers,
----- Forwarded message from Osamu Aoki <os...@debian.org> -----
}
} Problem: paperkey causes "Segmentation fault" with ed25519 subkey.
}
} $ gpg --export-secret-key 1DD8D791 |paperkey >paper-secret-1DD8D791.txt
} Unable to parse algorithm 22
} Segmentation fault
}
} (paperkey works fine with my old rsa1024 key w/o ed25519 subkey)
}
} How to reproduce:
} * Add a ed25519 subkey with "gpg --expert".
} * Execute paperkey as above (1DD8D791 is my key)
}
} FYI:
} $ gpg --list-keys 1DD8D791
} pub rsa4096 2010-09-23 [SC]
} 3133724D6207881579E95D621E1356881DD8D791
} uid [ultimate] Osamu Aoki <os...@debian.org>
} sub rsa4096 2010-09-23 [E]
} sub ed25519 2017-10-17 [A]
} $ gpg --edit-key 1DD8D791
} gpg (GnuPG) 2.2.1; Copyright (C) 2017 Free Software Foundation, Inc.
} This is free software: you are free to change and redistribute it.
} There is NO WARRANTY, to the extent permitted by law.
}
} Secret key is available.
}
} sec rsa4096/1E1356881DD8D791
} created: 2010-09-23 expires: never usage: SC
} card-no: FFFE 67240842
} trust: ultimate validity: ultimate
} ssb rsa4096/A04CBCEEF08BEFAD
} created: 2010-09-23 expires: never usage: E
} card-no: FFFE 67240842
} ssb ed25519/56F8269DCA1C3AD3
} created: 2017-10-17 expires: never usage: A
} card-no: FFFE 67240842
} [ultimate] (1). Osamu Aoki <os...@debian.org>
}
} gpg> q
}
} Background:
} At Debconf17 gNiibe-san tempted me to use "Modern GPG" and ... I now
} have a subkey using algorithm 22 (ed25519) and Gnuk. That's why I have
} card-no in the above example and ed25519.
}
----- End forwarded message -----
--
| .''`. ** Debian **
Peter Palfrader | : :' : The universal
https://www.palfrader.org/ | `. `' Operating System
| `- https://www.debian.org/
