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scd: Extend KEYPAIRINFO with an algorithm string.

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* scd/app-openpgp.c (send_keypair_info): Emit the algo string as part
of a KEYPAIRINFO.
* scd/command.c (do_readkey): Ditto.
* scd/app-piv.c (do_readkey): Ditto.
* scd/app-nks.c (do_learn_status_core): Ditto.
(struct fid_cache_s): Add field algostr.
(flush_fid_cache): Release it.
(keygripstr_from_pk_file): Fill it and add it to the cache.  Use a
single exit label.
* scd/app-help.c (app_help_get_keygrip_string_pk): Add new arg
r_algostr.  Change all callers.
--

This is helpful so that callers do not need to parse the key for this
basic information.  Use "scd readkey --info-only" to return the info
status line instead of the key material; using just --info returns the
info in addition to the key material.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-09-21 14:47:53 +02:00
parent babd87f2da
commit 26da47ae53
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GPG key ID: E3FDFF218E45B72B
8 changed files with 104 additions and 27 deletions
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2
agent/call-scd.c
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@ -677,7 +677,7 @@ readkey_status_cb (void *opaque, const char *line)
&& !parm->keyref)
{
/* The format of such a line is:
* KEYPAIRINFO <hexgrip> <keyref> [usage] [keytime]
* KEYPAIRINFO <hexgrip> <keyref> [usage] [keytime] [algostr]
*
* Here we only need the keyref. We use only the first received
* KEYPAIRINFO; it is possible to receive several if there are