/* Return the key ID from the given packet.
If this is not possible, 0 is returned */
u32
_cdk_pkt_get_keyid (cdk_packet_t pkt, u32 * keyid)
{
u32 lowbits;
if (!pkt)
return 0;
switch (pkt->pkttype)
{
case CDK_PKT_PUBLIC_KEY:
case CDK_PKT_PUBLIC_SUBKEY:
lowbits = cdk_pk_get_keyid (pkt->pkt.public_key, keyid);
break;
case CDK_PKT_SECRET_KEY:
case CDK_PKT_SECRET_SUBKEY:
lowbits = cdk_sk_get_keyid (pkt->pkt.secret_key, keyid);
break;
case CDK_PKT_SIGNATURE:
lowbits = cdk_sig_get_keyid (pkt->pkt.signature, keyid);
break;
default:
lowbits = 0;
break;
}
return lowbits;
}
static int
xml_add_sig (gnutls_string * xmlkey, int ext, cdk_pkt_signature_t sig)
{
const char *algo, *s;
char tmp[32], keyid[16];
unsigned int kid[2];
int rc = 0;
if (!xmlkey || !sig)
{
gnutls_assert ();
return GNUTLS_E_INVALID_REQUEST;
}
s = " <SIGNATURE>\n";
_gnutls_string_append_str (xmlkey, s);
sprintf (tmp, "%d", sig->version);
rc = xml_add_tag (xmlkey, "VERSION", tmp);
if (rc)
return rc;
if (ext)
{
sprintf (tmp, "%d", sig->sig_class);
rc = xml_add_tag (xmlkey, "SIGCLASS", tmp);
if (rc)
return rc;
}
sprintf (tmp, "%d", sig->flags.expired);
rc = xml_add_tag (xmlkey, "EXPIRED", tmp);
if (rc)
return rc;
if (ext)
{
switch (sig->pubkey_algo)
{
case GCRY_PK_DSA:
algo = "DSA";
break;
case GCRY_PK_ELG:
case GCRY_PK_ELG_E:
algo = "ELG";
break;
case GCRY_PK_RSA:
case GCRY_PK_RSA_E:
case GCRY_PK_RSA_S:
algo = "RSA";
break;
default:
algo = "???"; /* unknown algorithm */
}
rc = xml_add_tag (xmlkey, "PKALGO", algo);
if (rc)
return rc;
switch (sig->digest_algo)
{
case GCRY_MD_SHA1:
algo = "SHA1";
break;
case GCRY_MD_RMD160:
algo = "RMD160";
break;
case GCRY_MD_MD5:
algo = "MD5";
break;
default:
algo = "???";
}
rc = xml_add_tag (xmlkey, "MDALGO", algo);
if (rc)
return rc;
}
sprintf (tmp, "%lu", sig->timestamp);
rc = xml_add_tag (xmlkey, "CREATED", tmp);
if (rc)
return rc;
cdk_sig_get_keyid (sig, kid);
snprintf (keyid, 16, "%08lX%08lX", kid[0], kid[1]);
rc = xml_add_tag (xmlkey, "KEYID", keyid);
if (rc)
return rc;
s = " </SIGNATURE>\n";
_gnutls_string_append_str (xmlkey, s);
return 0;
}
