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gpg: Extend --quick-gen-key for creating keys from a card.

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* g10/keygen.c (parse_key_parameter_part): Add arg R_KEYGRIP and
support the special algo "card".
(parse_key_parameter_string): Add args R_KEYGRIP and R_SUBKEYGRIP.
Handle the "card" algo.  Adjust callers.
(parse_algo_usage_expire): Add arg R_KEYGRIP.
(quickgen_set_para): Add arg KEYGRIP and put it into the parameter
list.
(quick_generate_keypair): Handle algo "card".
(generate_keypair): Also handle the keygrips as returned by
parse_key_parameter_string.
(ask_algo): Support ed25519 from a card.
--

Note that this allows to create a new OpenPGP key from an initialized
OpenPGP card or from any other supported cards.  It has been tested
with the TCOS Netkey card.  Right now a stub file for the cards might
be needed; this can be achieved by running "gpgsm --learn" with the
card plugged in.

Example:

  gpg --quick-gen-key foo@example.org card

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2019-08-22 16:37:31 +02:00
parent b3226d91d0
commit d3f5d8544f
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
2 changed files with 270 additions and 58 deletions
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9
doc/gpg.texi
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@ -683,6 +683,15 @@ supplied passphrase is used for the new key and the agent does not ask
for it. To create a key without any protection @code{--passphrase ''}
may be used.
To create an OpenPGP key from the keys available on the currently
inserted smartcard, the special string ``card'' can be used for
@var{algo}. If the card features an encryption and a signing key, gpg
will figure them out and creates an OpenPGP key consisting of the
usual primary key and one subkey. This works only with certain
smartcards. Note that the interactive @option{--full-gen-key} command
allows to do the same but with greater flexibility in the selection of
the smartcard keys.
Note that it is possible to create a primary key and a subkey using
non-default algorithms by using ``default'' and changing the default
parameters using the option @option{--default-new-key-algo}.