Hi Peter, I've added support for EdDSA to paperkey (it's a one-line fix - EdDSA and ECDSA have the same representation), so that's simple enough.
The segfault is more troubling though - not supporting an algorithm (yet) is one thing, but paperkey should never segfault. Unfortunately, I can't reproduce the segfault with various ed25519 keys, both as themselves and in combinations like RSA primary and ed25519 subkey. Can you send me a test key that reproduces the issue for you? David > On Oct 22, 2017, at 10:05 AM, Peter Palfrader <wea...@debian.org> wrote: > > 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/ >
