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gpgsm: Allow specification of an AuthorityKeyIdentifier.

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* sm/certreqgen.c (pAUTHKEYID): New.
(read_parameters): Add keyword Authority-Key-Id.
(proc_parameters): Check its value.
(create_request): Insert an Authority-Key-Id.
This commit is contained in:
Werner Koch 2011-12-06 21:43:18 +01:00
parent 5cdad8ff00
commit 596b84a4de
1 changed files with 56 additions and 0 deletions
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56
sm/certreqgen.c
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@ -85,6 +85,7 @@ enum para_name
pNOTAFTER,
pSIGNINGKEY,
pHASHALGO,
pAUTHKEYID,
pSUBJKEYID,
pEXTENSION
};
@ -107,6 +108,7 @@ struct reqgen_ctrl_s
};
static const char oidstr_authorityKeyIdentifier[] = "2.5.29.35";
static const char oidstr_subjectKeyIdentifier[] = "2.5.29.14";
static const char oidstr_keyUsage[] = "2.5.29.15";
static const char oidstr_basicConstraints[] = "2.5.29.19";
@ -247,6 +249,7 @@ read_parameters (ctrl_t ctrl, estream_t fp, estream_t out_fp)
{ "Not-After", pNOTAFTER },
{ "Signing-Key", pSIGNINGKEY },
{ "Hash-Algo", pHASHALGO },
{ "Authority-Key-Id", pAUTHKEYID },
{ "Subject-Key-Id", pSUBJKEYID },
{ "Extension", pEXTENSION, 1 },
{ NULL, 0 }
@ -618,6 +621,21 @@ proc_parameters (ctrl_t ctrl, struct para_data_s *para,
}
}
/* Check the optional AuthorityKeyId. */
string = get_parameter_value (para, pAUTHKEYID, 0);
if (string)
{
for (s=string, i=0; hexdigitp (s); s++, i++)
;
if (*s || (i&1))
{
r = get_parameter (para, pAUTHKEYID, 0);
log_error (_("line %d: invalid authority-key-id\n"), r->lnr);
xfree (cardkeyid);
return gpg_error (GPG_ERR_INV_PARAMETER);
}
}
/* Check the optional SubjectKeyId. */
string = get_parameter_value (para, pSUBJKEYID, 0);
if (string)
@ -1095,6 +1113,44 @@ create_request (ctrl_t ctrl,
}
}
/* Insert the AuthorityKeyId. */
string = get_parameter_value (para, pAUTHKEYID, 0);
if (string)
{
char *hexbuf;
/* Allocate a buffer for in-place conversion. We also add 4
extra bytes space for the tags and lengths fields. */
hexbuf = xtrymalloc (4 + strlen (string) + 1);
if (!hexbuf)
{
err = gpg_error_from_syserror ();
goto leave;
}
strcpy (hexbuf+4, string);
for (p=hexbuf+4, len=0; p[0] && p[1]; p += 2)
((unsigned char*)hexbuf)[4+len++] = xtoi_2 (p);
if (len > 125)
{
err = gpg_error (GPG_ERR_TOO_LARGE);
xfree (hexbuf);
goto leave;
}
hexbuf[0] = 0x30; /* Tag for a Sequence. */
hexbuf[1] = len+2;
hexbuf[2] = 0x80; /* Context tag for an implicit Octet string. */
hexbuf[3] = len;
err = ksba_certreq_add_extension (cr, oidstr_authorityKeyIdentifier,
0,
hexbuf, 4+len);
xfree (hexbuf);
if (err)
{
log_error ("error setting the authority-key-id: %s\n",
gpg_strerror (err));
goto leave;
}
}
/* Insert the SubjectKeyId. */
string = get_parameter_value (para, pSUBJKEYID, 0);