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gpg: Improve the code to decrypt using PIV cards.

Browse source 
* g10/call-agent.c (agent_scd_keypairinfo): Add arg 'keyref'.
* g10/keygen.c (ask_algo): Adjust.
* g10/skclist.c (enum_secret_keys): Request the keyref directly.
--

This improves commit ec6a677923 to avoid
looping over all keypairinfos.  This way scdaemon does not need to
compute all the keypairinfos for all keys of a card.  This patch is
possible due the enhanced READKEY command in scdaemon.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2019-04-03 17:45:35 +02:00
parent 679b8f1c04
commit 2c9b68f28d
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GPG key ID: E3FDFF218E45B72B
4 changed files with 26 additions and 25 deletions
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2
g10/keygen.c
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@ -2254,7 +2254,7 @@ ask_algo (ctrl_t ctrl, int addmode, int *r_subkey_algo, unsigned int *r_usage,
tty_printf (_("Serial number of the card: %s\n"), serialno);
xfree (serialno);
err = agent_scd_keypairinfo (ctrl, &keypairlist);
err = agent_scd_keypairinfo (ctrl, NULL, &keypairlist);
if (err)
{
tty_printf (_("error reading the card: %s\n"),