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agent,ssh: Support "Use-for-ssh" flag in private key.

Browse Source 
* agent/findkey.c (public_key_from_file): Support "Use-for-ssh"
when it's in extended format.

--

GnuPG-bug-id: 5985
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2022-05-26 17:34:16 +09:00
parent 193fcc2f7a
commit d86b6c28fc
1 changed files with 22 additions and 10 deletions
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32
agent/findkey.c
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@ -1384,26 +1384,38 @@ public_key_from_file (ctrl_t ctrl, const unsigned char *grip,
if (err)
return err;
if (keymeta)
if (for_ssh)
{
/* Use-for-ssh: yes */
/* Token: <SERIALNO> <IDSTR> */
const char *p = nvc_get_string (keymeta, "Token:");
const char *p;
int is_ssh = 0;
if (!p)
if (keymeta == NULL)
return gpg_error (GPG_ERR_WRONG_KEY_USAGE);
while (*p && !spacep (p))
p++;
if ((p = nvc_get_string (keymeta, "Use-for-ssh:"))
&& !strcmp (p, "yes"))
is_ssh = 1;
if (!*p)
return gpg_error (GPG_ERR_WRONG_KEY_USAGE);
if ((p = nvc_get_string (keymeta, "Token:")))
{
while (*p && !spacep (p))
p++;
p++;
if (strcmp (p, "OPENPGP.3"))
return gpg_error (GPG_ERR_WRONG_KEY_USAGE);
if (*p)
{
p++;
if (!strcmp (p, "OPENPGP.3"))
is_ssh = 1;
}
}
nvc_release (keymeta);
keymeta = NULL;
if (!is_ssh)
return gpg_error (GPG_ERR_WRONG_KEY_USAGE);
}
for (i=0; i < DIM (array); i++)