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scd:openpgp: Extend KEYPAIRINFO with an algorithm string.

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* scd/app-openpgp.c (retrieve_fprtime_from_card): New.
(send_keypair_info): Add more to KEYPAIRINFO.
--

This is mainly needed to sync this version with master.
This commit is contained in:
Werner Koch 2023-10-11 09:51:13 +02:00
parent 10f8bb1671
commit 9252847646
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
1 changed files with 56 additions and 7 deletions
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63
scd/app-openpgp.c
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@ -1453,6 +1453,36 @@ retrieve_fpr_from_card (app_t app, int keyno, char *fpr)
}
/* Retrieve the creation time of the fingerprint for key KEYNO from
* the card inserted in the slot of APP and store it at R_FPRTIME.
* Returns 0 on success or an error code. */
static gpg_error_t
retrieve_fprtime_from_card (app_t app, int keyno, u32 *r_fprtime)
{
gpg_error_t err = 0;
void *relptr;
unsigned char *value;
size_t valuelen;
u32 fprtime;
log_assert (keyno >=0 && keyno <= 2);
relptr = get_one_do (app, 0x00CD, &value, &valuelen, NULL);
if (relptr && valuelen >= 4*(keyno+1))
{
fprtime = buf32_to_u32 (value + 4*keyno);
if (!fprtime)
err = gpg_error (GPG_ERR_NOT_FOUND);
else
*r_fprtime = fprtime;
}
else
err = gpg_error (GPG_ERR_NOT_FOUND);
xfree (relptr);
return err;
}
/* Retrieve the public key material for the RSA key, whose fingerprint
is FPR, from gpg output, which can be read through the stream FP.
The RSA modulus will be stored at the address of M and MLEN, the
@ -2048,8 +2078,9 @@ send_keypair_info (app_t app, ctrl_t ctrl, int key)
{
int keyno = key - 1;
gpg_error_t err = 0;
char idbuf[50];
const char *usage;
u32 fprtime;
char *algostr = NULL;
err = get_public_key (app, keyno);
if (err)
@ -2061,14 +2092,32 @@ send_keypair_info (app_t app, ctrl_t ctrl, int key)
usage = get_usage_string (keyno);
sprintf (idbuf, "OPENPGP.%d", keyno+1);
send_status_info (ctrl, "KEYPAIRINFO",
app->app_local->pk[keyno].keygrip_str, 40,
idbuf, strlen (idbuf),
usage, strlen (usage),
NULL, (size_t)0);
if (retrieve_fprtime_from_card (app, keyno, &fprtime))
fprtime = 0;
{
gcry_sexp_t s_pkey;
if (gcry_sexp_new (&s_pkey, app->app_local->pk[keyno].key,
app->app_local->pk[keyno].keylen, 0))
algostr = xtrystrdup ("?");
else
{
algostr = pubkey_algo_string (s_pkey, NULL);
gcry_sexp_release (s_pkey);
}
}
if (!algostr)
{
err = gpg_error_from_syserror ();
goto leave;
}
err = send_status_printf (ctrl, "KEYPAIRINFO", "%s OPENPGP.%d %s %lu %s",
app->app_local->pk[keyno].keygrip_str,
keyno+1, usage, (unsigned long)fprtime, algostr);
leave:
xfree (algostr);
return err;
}