gpg: Allow shortcut algo string "pqc" for --quick-gen-key.

* g10/keygen.c (PQC_STD_KEY_PARAM): New.
(quickgen_set_para): Always store the provided NBITS.
(parse_key_parameter_string): Detect the special value "pqc".
(quick_generate_keypair): Ditto.
--

With this change we can finally do a

  gpg --quick-gen-key --batch --passphrase='' foo@example.org  pqc

and get a full key.  Currently with a brainpoolp386r1 primary key and
a Kyber768_brainpoolp256 subkey.

1 files changed, 8 insertions, 6 deletions

diff --git a/doc/gpg.texi b/doc/gpg.texi
index 203f3339f..b69f39fe9 100644
--- a/doc/gpg.texi
+++ b/doc/gpg.texi
@@ -686,12 +686,14 @@ force the creation of the key will show up.
 
 If @var{algo} or @var{usage} are given, only the primary key is
 created and no prompts are shown.  To specify an expiration date but
-still create a primary and subkey use ``default'' or
-``future-default'' for @var{algo} and ``default'' for @var{usage}.
-For a description of these optional arguments see the command
-@code{--quick-add-key}.  The @var{usage} accepts also the value
-``cert'' which can be used to create a certification only primary key;
-the default is to a create certification and signing key.
+still create a primary and a subkey use ``default'',
+``future-default'', or ``pqc'' for @var{algo} and ``default'' for
+@var{usage}.  For a description of these optional arguments see the
+command @code{--quick-add-key}; the value ``pqc'' create a key with a
+quantum-resistant encryption encryption subkey.  The @var{usage}
+accepts also the value ``cert'' which can be used to create a
+certification only primary key; the default is to a create
+certification and signing key.
 
 The @var{expire} argument can be used to specify an expiration date
 for the key.  Several formats are supported; commonly the ISO formats