After looking more, I found that the code I had looked at in the CHUID on the PIV card should work for properly-issued cards. (I.E. demo cards may or may not work, depending on the manufacturer - but real cards should work fine.)
Unfortunately, I can not get to Subversion from work (I get a PROPFIND
error, even through https), so I can't easily get the latest code to
generate a patch. I've included the main method below, and I'll try to
get the patch made next week if no-one else does.
int piv_get_serial_nr_from_CHUI(sc_card_t* card, sc_serial_number_t*
serial)
{
int r;
u8 *rbuf = NULL;
u8 *body, *fascn;
size_t rbuflen = 0, bodylen, fascnlen;
u8 temp[2000];
size_t templen = sizeof(temp);
SC_FUNC_CALLED(card->ctx, 1);
/* ensure we've got the PIV selected, and nothing else is in
process */
/* This fixes several problems due to previous incomplete APDUs
during card detection */
/* Note: We need the temp because (some?) Oberthur cards don't
like selecting an applet without response data */
piv_select_aid(card, piv_aids[0].value, piv_aids[0].len_short,
temp, &templen);
r = piv_get_data(card, piv_find_obj_by_enum(card, PIV_OBJ_CHUI),
&rbuf, &rbuflen);
SC_TEST_RET(card->ctx, r, "Failure retrieving CHUI");
r = SC_ERROR_INTERNAL;
if (rbuflen != 0) {
body = (u8 *)sc_asn1_find_tag(card->ctx, rbuf, rbuflen,
0x53, &bodylen); /* Pass the outer wrapper asn1 */
if (body != NULL && bodylen != 0) {
fascn = (u8 *)sc_asn1_find_tag(card->ctx, body,
bodylen, 0x30, &fascnlen); /* Find the FASC-N data */
if (fascn != NULL && fascnlen != 0) {
serial->len = fascnlen < SC_MAX_SERIALNR
? fascnlen : SC_MAX_SERIALNR;
memcpy (serial->value, fascn,
serial->len);
r = SC_SUCCESS;
}
}
}
if (rbuf != NULL)
free (rbuf);
SC_FUNC_RETURN(card->ctx, 1, r);
}
Russell Larner| Senior Software Engineer| +1781-515-7112| e-Mail
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
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