[pkg-gnupg-maint] Bug#876968: gnupg: Improve error message when changing passwd on an "empty" card

[Santiago R.R.]

Package: gnupg
Version: 2.2.1-1
Severity: normal

Dear GnuPG Maintainers,

I have no idea if this concerns Gnuk only, so sorry it cannot be
improved in gnupg: When trying to change the passwd of my new gnuk
token (v1.2.5), I got this error message:

gpg/card> passwd
gpg: OpenPGP card no. D276000124010200FFFE870620540000 detected
Error changing the PIN: Conditions of use not satisfied

As told by gniibe-san, the "Conditions of use not satisfied" were the
lack of private key installed in the token. After importing it, I was
able to change the pass-phrase.
It would be easier to figure out the problem if the error message said
the private key was needed.

Cheers,

  -- Santiago

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.45-21.pvops.qubes.x86_64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gnupg depends on:
ii  dirmngr         2.2.1-1
ii  gnupg-l10n      2.2.1-1
ii  gnupg-utils     2.2.1-1
ii  gpg             2.2.1-1
ii  gpg-agent       2.2.1-1
ii  gpg-wks-client  2.2.1-1
ii  gpg-wks-server  2.2.1-1
ii  gpgsm           2.2.1-1
ii  gpgv            2.2.1-1

gnupg recommends no packages.

Versions of packages gnupg suggests:
pn  parcimonie  <none>
pn  xloadimage  <none>

-- no debconf information