gpg: New option --default-new-key-algo.

* common/openpgp-oid.c (openpgp_is_curve_supported): Add optional arg
R_ALGO and change all callers.
* common/util.h (GPG_ERR_UNKNOWN_FLAG): New error code.
* g10/options.h (struct opt): Add field DEF_NEW_KEY_ALGO.
* g10/gpg.c (oDefaultNewKeyAlgo): New enum.
(opts): New option "--default-new-key-algo".
(main): Set the option.
* g10/keygen.c: Remove DEFAULT_STD_ FUTURE_STD_ constants and replace
them by ...
(DEFAULT_STD_KEY_PARAM, FUTURE_STD_KEY_PARAM): new string constants.
(get_keysize_range): Remove arg R_DEF and return that value instead.
Change all callers.
(gen_rsa): Use get_keysize_range instead of the removed
DEFAULT_STD_KEYSIZE.
(parse_key_parameter_part): New function.
(parse_key_parameter_string): New function.
(quick_generate_keypair): Refactor using parse_key_parameter_string.
(generate_keypair): Ditto.
(parse_algo_usage_expire): Ditto.
--

This new option is intended to be used in the forthcoming
--set-profile command of gpgconf.  It allows to provide a gpg
configuration with custom defaults for a new key using the simple
commands which use the default algorithm set.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 12 insertions, 1 deletions

diff --git a/doc/gpg.texi b/doc/gpg.texi
index e3756e91f..b01d0a353 100644
--- a/doc/gpg.texi
+++ b/doc/gpg.texi
@@ -1159,7 +1159,11 @@ filename given on the command line, gpg might still need to read from
 STDIN (in particular if gpg figures that the input is a
 detached signature and no data file has been specified).  Thus if you
 do not want to feed data via STDIN, you should connect STDIN to
-@file{/dev/null}.
+g@file{/dev/null}.
+
+It is highly recommended to use this option along with the options
+@option{--status-fd} and @option{--with-colons} for any unattended of
+@command{gpg}.
 
 @item --no-tty
 @opindex no-tty
@@ -3162,6 +3166,13 @@ letter d (for days), w (for weeks), m (for months), or y (for years)
 (for example "2m" for two months, or "5y" for five years), or an
 absolute date in the form YYYY-MM-DD. Defaults to "0".
 
+@item --default-new-key-algo @var{string}
+@opindex default-new-key-algo @var{string}
+This option can be used to change the default algorithms for key
+generation.  Note that the advanced key generation commands can always
+be used to specify a key algorithm directly.  Please consult the
+source code to learn the syntax of @var{string}.
+
 @item --allow-secret-key-import
 @opindex allow-secret-key-import
 This is an obsolete option and is not used anywhere.