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opensc/src/libopensc/card-oberthur.c

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Very basic and untested oberthur driver. Could possibly work, as only non-essential parts stripped (or at least that was the plan). Written by Viktor Tarasov of idealx. All bugs by Andreas Jellinghaus, please don't blame anyone else. git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@1793 c6295689-39f2-0310-b995-f0e70906c6a9
2004-06-16 20:59:59 +00:00
/*
* card-oberthur.c: Support for Oberthur smart cards
* CosmopolIC v5;
*
* Copyright (C) 2001, 2002 Juha Yrj<EFBFBD>l<EFBFBD> <juha.yrjola@iki.fi>
* Copyright (C) 2003 Viktor Tarasov <vtarasov@idealx.com>, idealx <www.idealx.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* best view with tabstop=4
*/
#include "internal.h"
#include "cardctl.h"
#include "pkcs15.h"
#ifdef HAVE_OPENSSL
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <openssl/des.h>
#include "log.h"
#include "pkcs15.h"
#include "card-oberthur.h"
NTLV_t oberthur_atrs[] = {
the older generation of oberthur card is not supported by the current driver. better not detect them at all. git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@1798 c6295689-39f2-0310-b995-f0e70906c6a9
2004-06-20 13:37:04 +00:00
/* not jet supported
* { "Oberthur 32k", ATR_OBERTHUR_32K, 20,
* "\x3B\x7F\x18\x00\x00\x00\x31\xC0\x73\x9E\x01\x0B\x64\x52\xD9\x04\x00\x82\x90\x00"
* },
* { "Oberthur 32k BIO", ATR_OBERTHUR_32K_BIO, 20,
* "\x3B\x7F\x18\x00\x00\x00\x31\xC0\x73\x9E\x01\x0B\x64\x52\xD9\x05\x00\x82\x90\x00"
* }, */
Very basic and untested oberthur driver. Could possibly work, as only non-essential parts stripped (or at least that was the plan). Written by Viktor Tarasov of idealx. All bugs by Andreas Jellinghaus, please don't blame anyone else. git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@1793 c6295689-39f2-0310-b995-f0e70906c6a9
2004-06-16 20:59:59 +00:00
{ "Oberthur 64k v4/2.1.1", ATR_OBERTHUR_64K, 18,
"\x3B\x7D\x18\x00\x00\x00\x31\x80\x71\x8E\x64\x77\xE3\x01\x00\x82\x90\x00"
},
{ "Oberthur 64k v5", ATR_OBERTHUR_64K, 18,
"\x3B\x7D\x11\x00\x00\x00\x31\x80\x71\x8E\x64\x77\xE3\x01\x00\x82\x90\x00"
},
{ "Oberthur 64k v5/2.2.0", ATR_OBERTHUR_64K, 18,
"\x3B\x7D\x11\x00\x00\x00\x31\x80\x71\x8E\x64\x77\xE3\x02\x00\x82\x90\x00"
},
{ NULL, 0, 0, NULL }
};
NTLV_t oberthur_aids[] = {
/*
{ "AuthentIC v2", AID_OBERTHUR_V2, 14,
"\xA0\x00\x00\x00\x77\x58\x35\x30\x39\x23\x56\x32\x2E\x30"
},
{ "AuthentIC v4", AID_OBERTHUR_V4, 16,
"\xA0\x00\x00\x00\x77\x01\x03\x03\x00\x20\x03\xF1\x00\x00\x00\x02"
},
*/
{ "AuthentIC v5", AID_OBERTHUR_V5, 16,
"\xA0\x00\x00\x00\x77\x01\x03\x03\x00\x00\x00\xF1\x00\x00\x00\x02"
},
{ NULL, 0, 0, NULL }
};
static unsigned char rsa_der[PUBKEY_2048_ASN1_SIZE];
static int rsa_der_len = 0;
static struct sc_file last_selected_file;
static struct sc_card_operations auth_ops;
static struct sc_card_operations *iso_ops;
static struct sc_card_driver auth_drv = {
"Oberthur AuthentIC.v2/CosmopolIC.v4",
"oberthur",
&auth_ops
};
static int auth_get_pin_reference (struct sc_card *card,
int type, int reference, int cmd, int *out_ref);
static int auth_read_component(sc_card_t *card,
enum SC_CARDCTL_OBERTHUR_KEY_TYPE type, int num,
unsigned char *out, size_t outlen);
static int auth_verify(struct sc_card *card, unsigned int type,
int ref, const u8 *data, size_t data_len, int *tries_left);
static int auth_create_reference_data (struct sc_card *card,
struct sc_cardctl_oberthur_createpin_info *args);
static int
auth_finish(struct sc_card *card)
{
free(card->drv_data);
return 0;
}
static int
auth_select_aid(struct sc_card *card)
{
struct sc_apdu apdu;
unsigned char apdu_resp[SC_MAX_APDU_BUFFER_SIZE];
struct auth_private_data *data = card->drv_data;
int rv, ii;
unsigned char cm[7] = {0xA0,0x00,0x00,0x00,0x03,0x00,0x00};
// Select Card Manager (to deselect previously selected application)
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xA4, 0x04, 0x00);
apdu.lc = sizeof(cm);
apdu.le = sizeof(cm)+4;
apdu.data = cm;
apdu.datalen = sizeof(cm);
apdu.resplen = sizeof(apdu.resp);
apdu.resp = apdu_resp;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
// Get smart card serial number
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xCA, 0x9F, 0x7F);
apdu.cla = 0x80;
apdu.le = 0x2D;
apdu.resplen = 0x30;
apdu.resp = apdu_resp;
sc_transmit_apdu(card, &apdu);
if (apdu.sw1==0x90) {
sc_debug(card->ctx, "serial number %li\n",
*(apdu.resp+15)*0x1000000 + *(apdu.resp+16)*0x10000 +
*(apdu.resp+17)*0x100 + *(apdu.resp+18));
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xA4, 0x04, 0x00);
apdu.resp = apdu_resp;
// Try to select known AID
for (ii = 0; oberthur_aids[ii].value != NULL; ii++) {
size_t len = oberthur_aids[ii].len;
unsigned char *ptr;
ptr = oberthur_aids[ii].value;
apdu.lc = len;
apdu.le = len + 4;
apdu.data = oberthur_aids[ii].value;
apdu.datalen = len;
apdu.resplen = SC_MAX_AID_SIZE + 8;
rv = sc_transmit_apdu(card, &apdu);
if (rv < 0)
continue;
if (apdu.sw1!=0x90 || apdu.sw2!=0x00)
continue;
if (!memcmp(oberthur_aids[ii].value, apdu.resp+4, len)) {
memcpy(data->aid.value, oberthur_aids[ii].value, len);
data->aid.len = len;
data->aid.tag = oberthur_aids[ii].tag;
card->name = oberthur_aids[ii].name;
break;
}
}
return oberthur_aids[ii].value == NULL ? -1 : 0;
}
static int
auth_match_card(struct sc_card *card)
{
int ii;
for (ii = 0; oberthur_atrs[ii].value != NULL; ii++) {
if (oberthur_atrs[ii].len != card->atr_len)
continue;
else if (!memcmp(card->atr, oberthur_atrs[ii].value, oberthur_atrs[ii].len))
return 1;
}
return 0;
}
static int
auth_init(struct sc_card *card)
{
unsigned long flags;
struct auth_private_data *data;
data = (struct auth_private_data *) malloc(sizeof(struct auth_private_data));
if (!data)
return SC_ERROR_OUT_OF_MEMORY;
else
memset(data, 0, sizeof(struct auth_private_data));
card->cla = 0x00;
card->drv_data = data;
/* State that we have an RNG */
card->caps |= SC_CARD_CAP_RNG;
if (auth_select_aid(card)) {
sc_error(card->ctx, "Failed to initialize %s\n", card->name);
return SC_ERROR_INVALID_CARD;
}
flags = SC_ALGORITHM_RSA_PAD_PKCS1 | SC_ALGORITHM_RSA_PAD_ISO9796;
flags |= SC_ALGORITHM_RSA_HASH_NONE;
flags |= SC_ALGORITHM_ONBOARD_KEY_GEN;
_sc_card_add_rsa_alg(card, 512, flags, 0);
_sc_card_add_rsa_alg(card, 1024, flags, 0);
_sc_card_add_rsa_alg(card, 2048, flags, 0);
#if 0
flags = SC_ALGORITHM_SKEY_CBC | SC_ALGORITHM_SKEY_ECB;
memset(&info, 0, sizeof(info));
info.algorithm = SC_ALGORITHM_DES;
info.flags = flags;
info.key_length = 64;
_sc_card_add_algorithm(card, &info);
flags = SC_ALGORITHM_SKEY_CBC | SC_ALGORITHM_SKEY_ECB;
info.algorithm = SC_ALGORITHM_3DES;
info.flags = flags;
info.key_length = 192;
_sc_card_add_algorithm(card, &info);
#endif
return 0;
}
static void
add_acl_entry(struct sc_card *card, struct sc_file *file, unsigned int op,
u8 acl_byte)
{
struct auth_private_data *data = card->drv_data;
switch (data->aid.tag) {
case AID_OBERTHUR_V5 :
switch (acl_byte) {
case 0x00:
sc_file_add_acl_entry(file, op, SC_AC_NONE, SC_AC_KEY_REF_NONE);
break;
case 0x21:
sc_file_add_acl_entry(file, op, SC_AC_CHV, 1);
break;
case 0x24:
case 0x0F:
sc_file_add_acl_entry(file, op, SC_AC_CHV, 2);
break;
case 0x25:
sc_file_add_acl_entry(file, op, SC_AC_CHV, 3);
break;
case 0xFF:
sc_file_add_acl_entry(file, op, SC_AC_NEVER, SC_AC_KEY_REF_NONE);
break;
default:
sc_file_add_acl_entry(file, op, SC_AC_UNKNOWN, SC_AC_KEY_REF_NONE);
break;
}
break;
default:
break;
}
}
int
tlv_get(unsigned char *msg, unsigned char tag, unsigned char *ret, int *ret_len)
{
int len = *(msg+1);
int cur = 2;
if (*msg != 0x6F || len > 0x1A)
return SC_ERROR_INCORRECT_PARAMETERS;
while (cur < len) {
if (*(msg+cur)==tag) {
int ii, ln = *(msg+cur+1);
if (ln > *ret_len)
return SC_ERROR_WRONG_LENGTH;
for (ii=0; ii<ln; ii++)
*(ret + ii) = *(msg+cur+2+ii);
*ret_len = ln;
return 0;
}
cur += 2 + *(msg+cur+1);
}
return SC_ERROR_INCORRECT_PARAMETERS;
}
static int
decode_file_structure_V5 (struct sc_card *card, unsigned char *buf, int buflen,
struct sc_file *file)
{
u8 type, attr[SC_OBERTHUR_MAX_ATTR_SIZE];
int attr_len = sizeof(attr);
attr_len = sizeof(attr);
if (tlv_get(buf, 0x82, attr, &attr_len))
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
type = attr[0];
attr_len = sizeof(attr);
if (tlv_get(buf, 0x83, attr, &attr_len))
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
file->id = attr[0]*0x100 + attr[1];
attr_len = sizeof(attr);
if (tlv_get(buf, type==0x01 ? 0x80 : 0x85, attr, &attr_len))
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
if (attr_len<2 && type != 0x04)
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
switch (type) {
case 0x01:
file->type = SC_FILE_TYPE_WORKING_EF;
file->ef_structure = SC_FILE_EF_TRANSPARENT;
file->size = attr[0]*0x100 + attr[1];
break;
case 0x04:
file->type = SC_FILE_TYPE_WORKING_EF;
file->ef_structure = SC_FILE_EF_LINEAR_VARIABLE;
file->size = attr[0];
attr_len = sizeof(attr);
if (tlv_get(buf, 0x82, attr, &attr_len))
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
if (attr_len!=5)
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
file->record_length = attr[2]*0x100+attr[3];
file->record_count = attr[4];
break;
case 0x11:
file->type = SC_FILE_TYPE_INTERNAL_EF;
file->ef_structure = SC_CARDCTL_OBERTHUR_KEY_DES;
file->size = attr[0]*0x100 + attr[1];
file->size /= 8;
break;
case 0x12:
file->type = SC_FILE_TYPE_INTERNAL_EF;
file->ef_structure = SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC;
file->size = attr[0]*0x100 + attr[1];
if (file->size==512)
file->size = PUBKEY_512_ASN1_SIZE;
else if (file->size==1024)
file->size = PUBKEY_1024_ASN1_SIZE;
else if (file->size==2048)
file->size = PUBKEY_2048_ASN1_SIZE;
else {
sc_error(card->ctx, "Not supported public key size: %i\n", file->size);
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
}
break;
case 0x14:
file->type = SC_FILE_TYPE_INTERNAL_EF;
file->ef_structure = SC_CARDCTL_OBERTHUR_KEY_RSA_CRT;
file->size = attr[0]*0x100 + attr[1];
break;
case 0x38:
file->type = SC_FILE_TYPE_DF;
file->size = attr[0];
sc_file_set_type_attr(file,attr,attr_len);
break;
default:
sc_error(card->ctx, "invalid file type: 0x%02X\n", type);
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
}
attr_len = sizeof(attr);
if (tlv_get(buf, 0x86, attr, &attr_len))
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
if (attr_len<8)
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
if (file->type == SC_FILE_TYPE_DF) {
add_acl_entry(card, file, SC_AC_OP_CREATE, attr[0]);
add_acl_entry(card, file, SC_AC_OP_CRYPTO, attr[1]);
add_acl_entry(card, file, SC_AC_OP_LIST_FILES, attr[2]);
add_acl_entry(card, file, SC_AC_OP_DELETE, attr[3]);
#if 0
add_acl_entry(card, file, SC_AC_OP_CHANGE_REFERENCE, attr[4]);
add_acl_entry(card, file, SC_AC_OP_SET_REFERENCE, attr[5]);
add_acl_entry(card, file, SC_AC_OP_RESET_COUNTER, attr[6]);
#endif
}
else if (file->type == SC_FILE_TYPE_INTERNAL_EF) { /* EF */
switch (file->ef_structure) {
case SC_CARDCTL_OBERTHUR_KEY_DES:
add_acl_entry(card, file, SC_AC_OP_UPDATE, attr[0]);
#if 0
add_acl_entry(card, file, SC_AC_OP_DECRYPT, attr[1]);
add_acl_entry(card, file, SC_AC_OP_ENCRYPT, attr[2]);
add_acl_entry(card, file, SC_AC_OP_CHECKSUM, attr[3]);
add_acl_entry(card, file, SC_AC_OP_VERIFY, attr[4]);
#else
add_acl_entry(card, file, SC_AC_OP_READ, attr[1]);
#endif
break;
case SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC:
add_acl_entry(card, file, SC_AC_OP_UPDATE, attr[0]);
#if 0
add_acl_entry(card, file, SC_AC_OP_ENCRYPT, attr[2]);
add_acl_entry(card, file, SC_AC_OP_VERIFY, attr[4]);
#else
add_acl_entry(card, file, SC_AC_OP_READ, attr[2]);
#endif
break;
case SC_CARDCTL_OBERTHUR_KEY_RSA_CRT:
add_acl_entry(card, file, SC_AC_OP_UPDATE, attr[0]);
#if 0
add_acl_entry(card, file, SC_AC_OP_DECRYPT, attr[1]);
add_acl_entry(card, file, SC_AC_OP_SIGN, attr[3]);
#else
add_acl_entry(card, file, SC_AC_OP_READ, attr[1]);
#endif
break;
}
}
else {
switch (file->ef_structure) {
case SC_FILE_EF_TRANSPARENT:
add_acl_entry(card, file, SC_AC_OP_WRITE, attr[0]);
add_acl_entry(card, file, SC_AC_OP_UPDATE, attr[1]);
add_acl_entry(card, file, SC_AC_OP_READ, attr[2]);
add_acl_entry(card, file, SC_AC_OP_ERASE, attr[3]);
break;
case SC_FILE_EF_LINEAR_VARIABLE:
add_acl_entry(card, file, SC_AC_OP_WRITE, attr[0]);
add_acl_entry(card, file, SC_AC_OP_UPDATE, attr[1]);
add_acl_entry(card, file, SC_AC_OP_READ, attr[2]);
add_acl_entry(card, file, SC_AC_OP_ERASE, attr[3]);
break;
}
}
file->status = SC_FILE_STATUS_ACTIVATED;
file->magic = SC_FILE_MAGIC;
return 0;
}
static int
check_path(struct sc_card *card, const u8 **pathptr, size_t *pathlen,
int need_info)
{
const u8 *curptr = card->cache.current_path.value;
const u8 *ptr = *pathptr;
size_t curlen = card->cache.current_path.len;
size_t len = *pathlen;
if (curlen < 2 || len < 2)
return 0;
if (memcmp(ptr, "\x3F\x00", 2) != 0) {
/* Skip the MF id */
curptr += 2;
curlen -= 2;
}
if (len == curlen && memcmp(ptr, curptr, len) == 0) {
if (need_info)
return 0;
*pathptr = ptr + len;
*pathlen = 0;
return 1;
}
if (curlen < len && memcmp(ptr, curptr, curlen) == 0) {
*pathptr = ptr + curlen;
*pathlen = len - curlen;
return 1;
}
return 0;
}
void
auth_cache_path(struct sc_card *card, const struct sc_path *path)
{
struct sc_path *curpath = &card->cache.current_path;
switch (path->type) {
case SC_PATH_TYPE_FILE_ID:
if (path->value[0] == 0x3F && path->value[1] == 0x00)
sc_format_path("3F00", curpath);
else {
if (curpath->len + 2 > SC_MAX_PATH_SIZE) {
curpath->len = 0;
return;
}
memcpy(curpath->value + curpath->len, path->value, 2);
curpath->len += 2;
}
break;
case SC_PATH_TYPE_PATH:
curpath->len = 0;
if (path->value[0] != 0x3F || path->value[1] != 0)
sc_format_path("3F00", curpath);
if (curpath->len + path->len > SC_MAX_PATH_SIZE) {
curpath->len = 0;
return;
}
memcpy(curpath->value + curpath->len, path->value, path->len);
curpath->len += path->len;
break;
case SC_PATH_TYPE_DF_NAME:
/* All bets are off */
curpath->len = 0;
break;
}
}
static int
select_parent(struct sc_card *card, struct sc_file **file_out)
{
int rv;
struct sc_apdu apdu;
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
struct sc_file *file;
struct sc_path *cache_path = &card->cache.current_path;
struct auth_private_data *prv = card->drv_data;
last_selected_file.magic = 0;
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xA4, 0x03, 0);
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
apdu.le = 0x18;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
if (apdu.resplen < 14) {
sc_error(card->ctx, "invalid response length\n");
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
}
else if (apdu.resp[0] != 0x6F) {
sc_error(card->ctx, "unsupported: card returned FCI\n");
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
}
if (cache_path->len > 2)
cache_path->len -= 2;
file = sc_file_new();
if (prv->aid.tag == AID_OBERTHUR_V5)
rv = decode_file_structure_V5(card, apdu.resp, apdu.resplen, file);
else {
sc_file_free(file);
return SC_ERROR_INVALID_CARD;
}
if (rv) {
sc_file_free(file);
return rv;
}
memcpy(&last_selected_file, file, sizeof(struct sc_file));
if (file_out)
*file_out = file;
else
sc_file_free(file);
return 0;
}
static int
select_mf(struct sc_card *card, struct sc_file **file_out)
{
int ii,rv;
struct sc_file *file = NULL;
struct sc_path *cache_path = &card->cache.current_path;
last_selected_file.magic = 0;
for(ii=0;;ii++) {
rv = select_parent(card, &file);
SC_TEST_RET(card->ctx, rv, "Select parent failed");
if (file->id==0x3F00)
break;
else
sc_file_free(file);
if (ii>5)
return SC_ERROR_CARD_CMD_FAILED;
}
memcpy(cache_path->value, "\x3F\x00", 2);
cache_path->len = 2;
memcpy(&last_selected_file, file, sizeof(struct sc_file));
if (file && file_out)
*file_out = file;
else if (file)
sc_file_free(file);
return 0;
}
static int
select_file_id(struct sc_card *card, const u8 *buf, size_t buflen,
u8 p1, struct sc_file **file_out)
{
int rv;
struct sc_apdu apdu;
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
struct sc_file *file;
struct auth_private_data *prv = card->drv_data;
last_selected_file.magic = 0;
if (buflen==2 && memcmp(buf,"\x3F\x00",2)==0) {
rv = select_mf(card,file_out);
SC_TEST_RET(card->ctx, rv, "Select MF failed");
return rv;
}
if (!memcmp(buf,"\x00\x00",2) || !memcmp(buf,"\xFF\xFF",2) ||
!memcmp(buf,"\x3F\xFF",2))
return SC_ERROR_INCORRECT_PARAMETERS;
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xA4, p1, 0);
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
apdu.datalen = buflen;
apdu.data = buf;
apdu.lc = buflen;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
if (apdu.resplen < 14)
return SC_ERROR_UNKNOWN_DATA_RECEIVED;
if (apdu.resp[0] != 0x6F) {
sc_error(card->ctx, "unsupported: card returned FCI\n");
return SC_ERROR_UNKNOWN_DATA_RECEIVED; /* FIXME */
}
file = sc_file_new();
if (prv->aid.tag == AID_OBERTHUR_V5)
rv = decode_file_structure_V5(card, apdu.resp, apdu.resplen, file);
else {
sc_file_free(file);
return SC_ERROR_INVALID_CARD;
}
if (rv) {
sc_file_free(file);
return rv;
}
memcpy(&last_selected_file, file, sizeof(struct sc_file));
if (file->type == SC_FILE_TYPE_DF) {
struct sc_path *cache_path = &card->cache.current_path;
int len = cache_path->len;
if (len < sizeof(cache_path->value)) {
memcpy(&cache_path->value[len], buf, 2);
cache_path->len += 2;
}
}
sc_debug(card->ctx, "selected %04X\n",file->id);
if (file_out)
*file_out = file;
else
sc_file_free(file);
return rv;
}
static int
auth_select_file(struct sc_card *card, const struct sc_path *path,
struct sc_file **file_out)
{
int rv;
const u8 *pathptr = path->value;
size_t pathlen = path->len;
int locked = 0, magic_done;
u8 p1 = 0;
sc_debug(card->ctx, "path; type=%d, path=%s\n",
path->type, sc_print_path(path));
sc_debug(card->ctx, "cache; type=%d, path=%s\n",
card->cache.current_path.type, sc_print_path(&card->cache.current_path));
switch (path->type) {
case SC_PATH_TYPE_PATH:
if ((pathlen & 1) != 0) /* not divisible by 2 */
return SC_ERROR_INVALID_ARGUMENTS;
magic_done = check_path(card, &pathptr, &pathlen, file_out != NULL);
if (pathlen == 0)
return 0;
if (pathlen != 2 || memcmp(pathptr, "\x3F\x00", 2) != 0) {
locked = 1;
rv = sc_lock(card);
SC_TEST_RET(card->ctx, rv, "sc_lock() failed");
if (!magic_done && memcmp(pathptr, "\x3F\x00", 2) != 0) {
rv = select_file_id(card, (const u8 *) "\x3F\x00", 2, 0, NULL);
if (rv)
sc_unlock(card);
SC_TEST_RET(card->ctx, rv, "Unable to select Master File (MF)");
}
while (pathlen > 2) {
rv = select_file_id(card, pathptr, 2, 0, NULL);
if (rv)
sc_unlock(card);
SC_TEST_RET(card->ctx, rv, "Unable to select DF");
pathptr += 2;
pathlen -= 2;
}
}
break;
case SC_PATH_TYPE_DF_NAME:
p1 = 0x01;
break;
case SC_PATH_TYPE_FILE_ID:
p1 = 0x02;
if (pathlen != 2)
return SC_ERROR_INVALID_ARGUMENTS;
break;
}
rv = select_file_id(card, pathptr, pathlen, p1, file_out);
if (locked)
sc_unlock(card);
// if (!rv)
// auth_cache_path(card, path);
sc_debug(card->ctx, "return %i\n",rv);
return rv;
}
static int
auth_list_files(struct sc_card *card, u8 *buf, size_t buflen)
{
struct sc_apdu apdu;
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
int rv;
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0x34, 0, 0);
apdu.cla = 0x80;
apdu.le = 0x40;
apdu.resplen = sizeof(rbuf);
apdu.resp = rbuf;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
buflen = buflen < apdu.resplen ? buflen : apdu.resplen;
memcpy(buf, rbuf, buflen);
return buflen;
}
static int
auth_delete_file(struct sc_card *card, const struct sc_path *path)
{
int rv;
u8 sbuf[2];
struct sc_apdu apdu;
sc_debug(card->ctx, "path; type=%d, path=%s\n", path->type, sc_print_path(path));
SC_FUNC_CALLED(card->ctx, 1);
if (path->len < 2) {
sc_error(card->ctx, "Invalid path length\n");
SC_FUNC_RETURN(card->ctx, 1, SC_ERROR_INVALID_ARGUMENTS);
}
if (path->len > 2) {
struct sc_path parent = *path;
parent.len -= 2;
parent.type = SC_PATH_TYPE_PATH;
rv = auth_select_file(card, &parent, NULL);
SC_TEST_RET(card->ctx, rv, "select parent failed ");
}
sbuf[0] = path->value[path->len - 2];
sbuf[1] = path->value[path->len - 1];
if (memcmp(sbuf,"\x00\x00",2)==0 || (memcmp(sbuf,"\xFF\xFF",2)==0) ||
memcmp(sbuf,"\x3F\xFF",2)==0)
return SC_ERROR_INCORRECT_PARAMETERS;
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xE4, 0x02, 0x00);
apdu.lc = 2;
apdu.datalen = 2;
apdu.data = sbuf;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
if (apdu.sw1==0x6A && apdu.sw2==0x82) {
/* Clean the DF contents.*/
// struct sc_file *file;
u8 lbuf[SC_MAX_APDU_BUFFER_SIZE];
int ii, len;
// if (!(file = sc_file_new()))
// SC_FUNC_RETURN(card->ctx, 0, SC_ERROR_OUT_OF_MEMORY);
// rv = select_file_id(card, sbuf, 2, 0x01, &file);
rv = select_file_id(card, sbuf, 2, 0x01, NULL);
SC_TEST_RET(card->ctx, rv, "select DF failed");
len = auth_list_files(card, lbuf, sizeof(lbuf));
SC_TEST_RET(card->ctx, len, "list DF failed");
for (ii=0; ii<len/2; ii++) {
sc_path_t path;
path.value[0] = *(lbuf + ii*2);
path.value[1] = *(lbuf + ii*2 + 1);
path.len = 2;
rv = auth_delete_file(card, &path);
SC_TEST_RET(card->ctx, rv, "delete failed");
}
// rv = select_parent(card, &file);
rv = select_parent(card, NULL);
SC_TEST_RET(card->ctx, rv, "select parent DF failed");
apdu.p1 = 1;
rv = sc_transmit_apdu(card, &apdu);
}
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card return error");
return rv;
}
static int
acl_to_ac_byte(struct sc_card *card, const struct sc_acl_entry *e)
{
struct auth_private_data *data = card->drv_data;
if (e == NULL)
return -1;
switch (data->aid.tag) {
case AID_OBERTHUR_V5 :
switch (e->method) {
case SC_AC_NONE:
return 0x00;
case SC_AC_CHV:
if (e->key_ref == 1)
return 0x21;
else if (e->key_ref == 2)
return 0x24;
else if (e->key_ref == 3)
return 0x25;
else
return -1;
case SC_AC_NEVER:
return 0xff;
}
break;
}
sc_error(card->ctx, "unknown method or aid %i; tag %X\n",e->method, data->aid.tag);
return SC_ERROR_INCORRECT_PARAMETERS;
}
static int
encode_file_structure_V5(struct sc_card *card, const struct sc_file *file,
u8 *buf, size_t *buflen)
{
u8 *p = buf;
int rv=0, ii, size;
unsigned char ops[8] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
sc_debug(card->ctx, ": id %04X; size %i; type %i/%i\n",
file->id, file->size, file->type, file->ef_structure);
if (*buflen < 0x18) {
sc_error(card->ctx, "Insifficient buffer size.\n");
return SC_ERROR_INCORRECT_PARAMETERS;
}
p[0] = 0x62, p[1] = 0x16;
p[2] = 0x82, p[3] = 0x02;
rv = 0;
if (file->type == SC_FILE_TYPE_DF) {
p[4] = 0x38;
p[5] = 0x00;
}
else if (file->type == SC_FILE_TYPE_WORKING_EF) {
switch (file->ef_structure) {
case SC_FILE_EF_TRANSPARENT:
p[4] = 0x01;
p[5] = 0x01;
break;
case SC_FILE_EF_LINEAR_VARIABLE:
p[4] = 0x04;
p[5] = 0x01;
break;
default:
rv = -1;
break;
}
}
else if (file->type == SC_FILE_TYPE_INTERNAL_EF) {
switch (file->ef_structure) {
case SC_CARDCTL_OBERTHUR_KEY_DES:
p[4] = 0x11;
p[5] = 0x00;
break;
case SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC:
p[4] = 0x12;
p[5] = 0x00;
break;
case SC_CARDCTL_OBERTHUR_KEY_RSA_CRT:
p[4] = 0x14;
p[5] = 0x00;
break;
default:
rv = -1;
break;
}
}
else
rv = -1;
if (rv) {
sc_error(card->ctx, "Invalid EF structure %i/%i\n",
file->type, file->ef_structure);
return -1;
}
p[6] = 0x83;
p[7] = 0x02;
p[8] = file->id >> 8;
p[9] = file->id & 0xFF;
p[10] = 0x85;
p[11] = 0x02;
size = file->size;
if (file->type == SC_FILE_TYPE_DF) {
size &= 0xFF;
}
else if (file->type == SC_FILE_TYPE_INTERNAL_EF &&
file->ef_structure == SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC) {
/*
* Legal sizes corresponds to 512/1024/2048 key size
* and 3 bytes exponent.
*/
sc_debug(card->ctx, "ef %s\n","SC_FILE_EF_RSA_PUBLIC");
if (file->size == PUBKEY_512_ASN1_SIZE || file->size == 512)
size = 512;
else if (file->size == PUBKEY_1024_ASN1_SIZE || file->size == 1024)
size = 1024;
else if (file->size == PUBKEY_2048_ASN1_SIZE || file->size == 2048)
size = 2048;
else {
sc_error(card->ctx, "incorrect RSA size %X\n", file->size);
return SC_ERROR_INCORRECT_PARAMETERS;
}
}
else if (file->type == SC_FILE_TYPE_INTERNAL_EF &&
file->ef_structure == SC_CARDCTL_OBERTHUR_KEY_DES) {
if (file->size == 8 || file->size == 64)
size = 64;
else if (file->size == 16 || file->size == 128)
size = 128;
else if (file->size == 24 || file->size == 192)
size = 192;
else {
sc_error(card->ctx, "incorrect DES size %X\n", file->size);
return SC_ERROR_INCORRECT_PARAMETERS;
}
}
p[12] = (size >> 8) & 0xFF;
p[13] = size & 0xFF;
p[14] = 0x86;
p[15] = 0x08;
if (file->type == SC_FILE_TYPE_DF) {
ops[0] = SC_AC_OP_CREATE;
ops[1] = SC_AC_OP_CRYPTO;
ops[2] = SC_AC_OP_LIST_FILES;
ops[3] = SC_AC_OP_DELETE;
ops[4] = SC_AC_OP_LIST_FILES; // SC_AC_OP_SET_REFERENCE
ops[5] = SC_AC_OP_LIST_FILES; // SC_AC_OP_CHANGE_REFERENCE
ops[6] = SC_AC_OP_LIST_FILES; // SC_AC_OP_RESET_COUNTER
}
else if (file->type == SC_FILE_TYPE_WORKING_EF) {
if (file->ef_structure == SC_FILE_EF_TRANSPARENT) {
sc_debug(card->ctx, "SC_FILE_EF_TRANSPARENT\n");
ops[0] = SC_AC_OP_WRITE;
ops[1] = SC_AC_OP_UPDATE;
ops[2] = SC_AC_OP_READ;
ops[3] = SC_AC_OP_ERASE;
}
else if (file->ef_structure == SC_FILE_EF_LINEAR_VARIABLE) {
sc_debug(card->ctx, "SC_FILE_EF_LINEAR_VARIABLE\n");
ops[0] = SC_AC_OP_WRITE;
ops[1] = SC_AC_OP_UPDATE;
ops[2] = SC_AC_OP_READ;
ops[3] = SC_AC_OP_ERASE;
}
}
else if (file->type == SC_FILE_TYPE_INTERNAL_EF) {
if (file->ef_structure == SC_CARDCTL_OBERTHUR_KEY_DES) {
sc_debug(card->ctx, "EF_DES\n");
ops[0] = SC_AC_OP_UPDATE;
ops[1] = SC_AC_OP_READ; // SC_AC_OP_DECRYPT
ops[2] = SC_AC_OP_READ; // SC_AC_OP_ENCRYPT
ops[3] = SC_AC_OP_READ; // SC_AC_OP_CHECKSUM
ops[4] = SC_AC_OP_READ; // SC_AC_OP_CHECKSUM
}
else if (file->ef_structure == SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC) {
sc_debug(card->ctx, "EF_RSA_PUBLIC\n");
ops[0] = SC_AC_OP_UPDATE;
ops[2] = SC_AC_OP_READ; // SC_AC_OP_ENCRYPT
ops[4] = SC_AC_OP_READ; // SC_AC_OP_SIGN
}
else if (file->ef_structure == SC_CARDCTL_OBERTHUR_KEY_RSA_CRT) {
sc_debug(card->ctx, "EF_RSA_PRIVATE\n");
ops[0] = SC_AC_OP_UPDATE;
ops[1] = SC_AC_OP_READ; // SC_AC_OP_ENCRYPT
ops[3] = SC_AC_OP_READ; // SC_AC_OP_SIGN
}
}
for (ii = 0; ii < sizeof(ops); ii++) {
const struct sc_acl_entry *entry;
p[16+ii] = 0xFF;
if (ops[ii]==0xFF)
continue;
entry = sc_file_get_acl_entry(file, ops[ii]);
rv = acl_to_ac_byte(card,entry);
SC_TEST_RET(card->ctx, rv, "Invalid ACL value");
p[16+ii] = rv;
}
*buflen = 0x18;
return 0;
}
static int
auth_create_file(struct sc_card *card, struct sc_file *file)
{
u8 sbuf[0x18];
size_t sendlen = sizeof(sbuf);
int rv, rec_nr;
struct sc_apdu apdu;
struct sc_path path;
struct auth_private_data *prv = card->drv_data;
sc_debug(card->ctx, " create path=%s\n", sc_print_path(&file->path));
sc_debug(card->ctx,"id %04X; size %i; type %i; ef %i\n",
file->id, file->size, file->type, file->ef_structure);
if (file->id==0x0000 || file->id==0xFFFF || file->id==0x3FFF)
return SC_ERROR_INVALID_ARGUMENTS;
sc_debug(card->ctx, " cache path=%s\n",
sc_print_path(&card->cache.current_path));
if (file->path.len) {
memcpy(&path, &file->path, sizeof(path));
if (path.len>2)
path.len -= 2;
if (auth_select_file(card, &path, NULL)) {
sc_error(card->ctx, "Cannot select parent DF.\n");
return SC_ERROR_INVALID_ARGUMENTS;
}
}
if (prv->aid.tag == AID_OBERTHUR_V5)
rv = encode_file_structure_V5(card, file, sbuf, &sendlen);
else
return SC_ERROR_INVALID_CARD;
if (rv) {
sc_error(card->ctx, "File structure encoding failed.\n");
return SC_ERROR_INVALID_ARGUMENTS;
}
if (file->type != SC_FILE_TYPE_DF && file->ef_structure != SC_FILE_EF_TRANSPARENT)
rec_nr = file->record_count;
else
rec_nr = 0;
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xE0, 0x00, rec_nr);
apdu.data = sbuf;
apdu.datalen = sendlen;
apdu.lc = sendlen;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
/* select created DF. */
if (file->type == SC_FILE_TYPE_DF) {
u8 file_id[2] = {file->id >> 8, file->id & 0xFF};
if (select_file_id(card, file_id, 2, 0x01, NULL))
return SC_ERROR_CARD_CMD_FAILED;
if (card->cache_valid) {
u8 file_id[2];
file_id[0] = file->id >> 8;
file_id[1] = file->id & 0xFF;
if (card->cache.current_path.len != 0)
sc_append_path_id(&card->cache.current_path, file_id, 2);
}
}
return 0;
}
static int
auth_set_security_env(struct sc_card *card,
const struct sc_security_env *env, int se_num)
{
auth_senv_t *senv = &((struct auth_private_data *) card->drv_data)->senv;
long unsigned pads = env->algorithm_flags & SC_ALGORITHM_RSA_PADS;
long unsigned supported_pads =
SC_ALGORITHM_RSA_PAD_PKCS1 | SC_ALGORITHM_RSA_PAD_ISO9796;
struct sc_file *key_file = NULL;
struct sc_apdu apdu;
u8 rsa_sbuf[7] = {0x80, 0x01, 0xFF, 0x81, 0x02, 0xFF, 0xFF};
int des_buf_len;
u8 des_sbuf[17] = {0x80, 0x01, 0x01, 0x81, 0x02, 0xFF, 0xFF,
0x87, 0x08, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF};
struct auth_private_data *prv = card->drv_data;
int rv;
sc_debug(card->ctx, "op %i\n", env->operation);
memset(senv,0,sizeof(auth_senv_t));
rv = auth_select_file(card, &env->file_ref, &key_file);
if (rv)
return rv;
switch (env->algorithm) {
case SC_ALGORITHM_DES:
case SC_ALGORITHM_3DES:
sc_debug(card->ctx, "algo SC_ALGORITHM_xDES: ref %X, flags %X\n",
env->algorithm_ref, env->flags);
if (key_file->ef_structure != SC_CARDCTL_OBERTHUR_KEY_DES ||
key_file->type != SC_FILE_TYPE_INTERNAL_EF)
return SC_ERROR_INVALID_ARGUMENTS;
des_buf_len = 3;
if (env->flags & SC_SEC_ENV_FILE_REF_PRESENT) {
des_sbuf[5] = (key_file->id>>8) & 0xFF;
des_sbuf[6] = key_file->id & 0xFF;
des_buf_len += 4;
}
if (env->operation == SC_SEC_OPERATION_DECIPHER) {
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x22, 0x41, 0xB8);
apdu.lc = des_buf_len;
apdu.data = des_sbuf;
apdu.datalen = des_buf_len;
}
else {
sc_error(card->ctx, "Invalid crypto operation: %X\n", env->operation);
return SC_ERROR_NOT_SUPPORTED;
}
break;
case SC_ALGORITHM_RSA:
sc_debug(card->ctx, "algo SC_ALGORITHM_RSA\n");
if (env->algorithm_flags & SC_ALGORITHM_RSA_HASHES) {
sc_error(card->ctx, "Not support for hashes.\n");
return SC_ERROR_NOT_SUPPORTED;
}
if (pads & (~supported_pads)) {
sc_error(card->ctx, "No support for this PAD: %X\n",pads);
return SC_ERROR_NOT_SUPPORTED;
}
if (key_file->type != SC_FILE_TYPE_INTERNAL_EF ||
key_file->ef_structure != SC_CARDCTL_OBERTHUR_KEY_RSA_CRT)
return SC_ERROR_INVALID_ARGUMENTS;
rsa_sbuf[5] = (key_file->id>>8) & 0xFF;
rsa_sbuf[6] = key_file->id & 0xFF;
if (env->operation == SC_SEC_OPERATION_SIGN) {
rsa_sbuf[2] = prv->aid.tag == AID_OBERTHUR_V5 ? 0x11 : 0x11;
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x22, 0x41, 0xB6);
apdu.lc = sizeof(rsa_sbuf);
apdu.datalen = sizeof(rsa_sbuf);
apdu.data = rsa_sbuf;
}
else if (env->operation == SC_SEC_OPERATION_DECIPHER) {
rsa_sbuf[2] = prv->aid.tag == AID_OBERTHUR_V5 ? 0x11 : 0x02;
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x22, 0x41, 0xB8);
apdu.lc = sizeof(rsa_sbuf);
apdu.datalen = sizeof(rsa_sbuf);
apdu.data = rsa_sbuf;
}
else {
sc_error(card->ctx, "Invalid crypto operation: %X\n", env->operation);
return SC_ERROR_NOT_SUPPORTED;
}
break;
default:
sc_error(card->ctx, "Invalid crypto algorithm supplied.\n");
return SC_ERROR_NOT_SUPPORTED;
}
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
senv->algorithm = env->algorithm;
senv->key_file_id = key_file->id;
senv->key_size = key_file->size;
if (key_file)
sc_file_free(key_file);
return 0;
}
static int
auth_restore_security_env(struct sc_card *card, int se_num)
{
return 0;
}
static int
auth_compute_signature(struct sc_card *card,
const u8 *in, size_t ilen, u8 * out, size_t olen)
{
auth_senv_t *senv = &((struct auth_private_data *) card->drv_data)->senv;
struct sc_apdu apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
int rv;
sc_debug(card->ctx, " inlen %i, outlen %i, algo %i\n", ilen, olen, senv->algorithm);
if (!senv->key_file_id)
return SC_ERROR_INVALID_DATA;
switch (senv->algorithm) {
case SC_ALGORITHM_RSA:
sc_debug(card->ctx, "algorithm SC_ALGORITHM_RSA\n");
if (ilen > 96) {
sc_error(card->ctx, "Illegal input length for CosmopolIC v4: %d\n", ilen);
return SC_ERROR_INVALID_ARGUMENTS;
}
else if (olen < ilen) {
sc_error(card->ctx, "Output buffer too small.\n");
return SC_ERROR_BUFFER_TOO_SMALL;
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x2A, 0x9E, 0x9A);
apdu.lc = ilen;
apdu.datalen = ilen;
apdu.data = sbuf;
memcpy(sbuf, in, ilen);
apdu.le = senv->key_size/8;
apdu.resp = malloc(senv->key_size/8+8);
if (apdu.resp==NULL)
SC_FUNC_RETURN(card->ctx, 0, SC_ERROR_OUT_OF_MEMORY);
apdu.resplen = senv->key_size/8;
break;
default:
sc_error(card->ctx, "Invalid crypto algorithm supplied.\n");
return SC_ERROR_NOT_SUPPORTED;
}
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
if (apdu.resplen != senv->key_size/8) {
sc_error(card->ctx, "Signature failed: invalide response length %i\n",
apdu.resplen);
return SC_ERROR_CARD_CMD_FAILED;
}
memcpy(out, apdu.resp, apdu.resplen);
if (card->ctx->debug >= 5) {
char debug_buf[2048];
debug_buf[0] = 0;
if (!apdu.sensitive || card->ctx->debug >= 6)
sc_hex_dump(card->ctx, in, ilen, debug_buf, sizeof(debug_buf));
sc_debug(card->ctx, "auth_compute_signature in %d bytes :\n%s",
ilen, apdu.sensitive ? ", sensitive" : "", debug_buf);
debug_buf[0] = 0;
if (!apdu.sensitive || card->ctx->debug >= 6)
sc_hex_dump(card->ctx, out, apdu.resplen, debug_buf, sizeof(debug_buf));
sc_debug(card->ctx, "auth_compute_signature out %d bytes :\n%s",
apdu.resplen,
apdu.sensitive ? ", sensitive" : "", debug_buf);
}
sc_debug(card->ctx, "Signature Template return %i\n", apdu.resplen);
return apdu.resplen;
}
static int
auth_decipher(struct sc_card *card, const u8 * crgram, size_t crgram_len,
u8 * out, size_t outlen)
{
auth_senv_t *senv = &((struct auth_private_data *) card->drv_data)->senv;
struct auth_private_data *prv = card->drv_data;
struct sc_apdu apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
int rv;
sc_debug(card->ctx,": crgram_len %i; outlen %i\n", crgram_len, outlen);
if (!out || !outlen || crgram_len > SC_MAX_APDU_BUFFER_SIZE)
return SC_ERROR_INVALID_ARGUMENTS;
if (!senv->key_file_id)
return SC_ERROR_INVALID_DATA;
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x2A, 0x80, 0x86);
apdu.data = sbuf;
apdu.resp = malloc(SC_MAX_APDU_BUFFER_SIZE);
if (!apdu.resp)
return SC_ERROR_OUT_OF_MEMORY;
apdu.resplen = SC_MAX_APDU_BUFFER_SIZE;
switch (senv->algorithm) {
case SC_ALGORITHM_RSA:
sc_debug(card->ctx, "algorithm SC_ALGORITHM_RSA\n");
if (crgram_len != 64 && crgram_len != 128 && crgram_len != 256) {
rv = SC_ERROR_INVALID_ARGUMENTS;
goto done;
}
if (senv->key_size==2048) {
int nn;
if (prv->aid.tag == AID_OBERTHUR_V5)
nn = 8;
else
nn = 1;
apdu.cla |= 0x10;
memcpy(sbuf, crgram, nn);
apdu.lc = nn;
apdu.datalen = nn;
apdu.le = outlen;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
crgram_len -= nn;
crgram += nn;
apdu.cla &= ~0x10;
}
break;
case SC_ALGORITHM_DES:
case SC_ALGORITHM_3DES:
sc_debug(card->ctx,"algorithm SC_ALGORITHM_DES\n");
if (crgram_len == 0 || (crgram_len%8) != 0) {
rv = SC_ERROR_INVALID_ARGUMENTS;
goto done;
}
break;
default:
sc_error(card->ctx, "Invalid crypto algorithm supplied.\n");
rv = SC_ERROR_NOT_SUPPORTED;
goto done;
}
apdu.data = sbuf;
memcpy(sbuf, crgram, crgram_len);
apdu.lc = crgram_len;
apdu.datalen = crgram_len;
apdu.le = outlen;
apdu.resplen = SC_MAX_APDU_BUFFER_SIZE;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
if (apdu.resplen > outlen) {
sc_error(card->ctx, "invalide response length %i\n", apdu.resplen);
rv = SC_ERROR_CARD_CMD_FAILED;
goto done;
}
memcpy(out, apdu.resp, apdu.resplen);
rv = apdu.resplen;
done:
if (apdu.resp)
free(apdu.resp);
sc_debug(card->ctx, "return decipher len %i\n", rv);
return rv;
}
/* Return the default AAK for this type of card */
static int
auth_get_default_key(struct sc_card *card, struct sc_cardctl_default_key *data)
{
return SC_ERROR_NO_DEFAULT_KEY;
}
static int
auth_encode_exponent(unsigned long exponent, u8 *buff, size_t buff_len)
{
int ii, shift;
for (shift=0; exponent >> (shift+8); shift += 8)
;
for (ii = 0; ii<buff_len && shift>=0 ; ii++, shift-=8)
*(buff + ii) = (exponent >> shift) & 0xFF;
if (ii==buff_len)
return 0;
else
return ii;
}
/* Generate key on-card */
static int
auth_generate_key(sc_card_t *card, struct sc_cardctl_oberthur_genkey_info *data)
{
struct sc_apdu apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
int rv = 0;
sc_debug(card->ctx, " %i bits\n",data->key_bits);
if (data->key_bits < 512 || data->key_bits > 2048 ||
(data->key_bits%0x20)!=0) {
sc_error(card->ctx, "Illegal key length: %d\n", data->key_bits);
return SC_ERROR_INVALID_ARGUMENTS;
}
sbuf[0] = (data->id_pub >> 8) & 0xFF;
sbuf[1] = data->id_pub & 0xFF;
sbuf[2] = (data->id_prv >> 8) & 0xFF;
sbuf[3] = data->id_prv & 0xFF;
if (data->exponent != 0x10001) {
rv = auth_encode_exponent(data->exponent, &sbuf[5],SC_MAX_APDU_BUFFER_SIZE-6);
if (!rv) {
sc_error(card->ctx, "Cannot encode exponent\n");
return SC_ERROR_INVALID_ARGUMENTS;
}
sbuf[4] = rv;
rv++;
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x46, 0x00, 0x00);
if (!(apdu.resp = malloc(data->key_bits/8+8))) {
sc_error(card->ctx, "Cannot allocate memory\n");
return SC_ERROR_OUT_OF_MEMORY;
}
apdu.resplen = data->key_bits/8+8;
apdu.lc = rv + 4;
apdu.le = data->key_bits/8;
apdu.data = sbuf;
apdu.datalen = rv + 4;;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
if (apdu.resplen == 0) {
struct auth_private_data *prv = card->drv_data;
rv = auth_read_component(card, SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC,
prv->aid.tag == AID_OBERTHUR_V5 ? 1 : 2,
apdu.resp, data->key_bits/8);
SC_TEST_RET(card->ctx, rv, "auth_read_component() returned error");
if (rv<0)
return rv;
apdu.resplen = rv;
}
if (data->pubkey) {
if (data->pubkey_len < apdu.resplen)
return SC_ERROR_INVALID_ARGUMENTS;
memcpy(data->pubkey,apdu.resp,apdu.resplen);
}
data->pubkey_len = apdu.resplen;
free(apdu.resp);
sc_debug(card->ctx, "resulted public key len %i\n", apdu.resplen);
return 0;
}
static int
auth_update_component(sc_card_t *card, struct sc_cardctl_oberthur_updatekey_info *args)
{
struct sc_apdu apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE + 0x10];
u8 ins, p1, p2;
int rv, len;
struct auth_private_data *prv = card->drv_data;
sc_debug(card->ctx, ": nn %i; len %i\n", args->component, args->len);
if (args->len > sizeof(sbuf) || args->len > 0x100)
return SC_ERROR_INVALID_ARGUMENTS;
sc_debug(card->ctx, "nn %i; len %i\n", args->component, args->len);
ins = 0xD8;
p1 = args->component;
p2 = 0x04;
len = 0;
if (prv->aid.tag == AID_OBERTHUR_V5) {
sc_debug(card->ctx, "nn %i; len %i\n", args->component, args->len);
sbuf[len++] = args->type;
sbuf[len++] = args->len;
memcpy(sbuf + len, args->data, args->len);
len += args->len;
if (args->type == SC_CARDCTL_OBERTHUR_KEY_DES) {
unsigned char in[8];
unsigned char out[8];
DES_cblock kk;
DES_key_schedule ks;
assert(DES_KEY_SZ==8);
if (args->len!=8 && args->len!=24)
return SC_ERROR_INVALID_ARGUMENTS;
p2 = 0;
memset(in, 0, sizeof(in));
memcpy(&kk, args->data, 8);
DES_set_key_unchecked(&kk,&ks);
DES_ecb_encrypt((DES_cblock *)in, (DES_cblock *)out, &ks, DES_ENCRYPT);
if (args->len==24) {
sc_debug(card->ctx, "nn %i; len %i\n", args->component, args->len);
memcpy(&kk, args->data + 8, 8);
DES_set_key_unchecked(&kk,&ks);
memcpy(in, out, 8);
DES_ecb_encrypt((DES_cblock *)in, (DES_cblock *)out, &ks, DES_DECRYPT);
sc_debug(card->ctx, "nn %i; len %i\n", args->component, args->len);
memcpy(&kk, args->data + 16, 8);
DES_set_key_unchecked(&kk,&ks);
memcpy(in, out, 8);
DES_ecb_encrypt((DES_cblock *)in, (DES_cblock *)out, &ks, DES_ENCRYPT);
}
sbuf[len++] = 0x03;
memcpy(sbuf + len, out, 3);
len += 3;
}
else {
sbuf[len++] = 0;
}
}
else {
ins = 0xDC;
memcpy(sbuf + len, args->data, args->len);
len += args->len;
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, ins, p1, p2);
apdu.cla |= 0x80;
apdu.data = sbuf;
apdu.datalen = len;
apdu.lc = len;
apdu.sensitive = 1;
if (args->len == 0x100) {
if (prv->aid.tag == AID_OBERTHUR_V5) {
sbuf[0] = args->type;
sbuf[1] = 0x20;
memcpy(sbuf + 2, args->data, 0x20);
sbuf[0x22] = 0;
apdu.cla |= 0x10;
apdu.data = sbuf;
apdu.datalen = 0x23;
apdu.lc = 0x23;
rv = sc_transmit_apdu(card, &apdu);
apdu.cla &= ~0x10;
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
sbuf[0] = args->type;
sbuf[1] = 0xE0;
memcpy(sbuf + 2, args->data + 0x20, 0xE0);
sbuf[0xE2] = 0;
apdu.data = sbuf;
apdu.datalen = 0xE3;
apdu.lc = 0xE3;
}
else {
apdu.cla |= 0x10;
apdu.datalen = 1;
apdu.lc = 1;
rv = sc_transmit_apdu(card, &apdu);
apdu.cla &= ~0x10;
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
apdu.data = sbuf + 1;
apdu.datalen = 255;
apdu.lc = 255;
}
}
rv = sc_transmit_apdu(card, &apdu);
memset(sbuf, 0, sizeof(sbuf));
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card return error");
return rv;
}
static int
auth_card_ctl(struct sc_card *card, unsigned long cmd, void *ptr)
{
switch (cmd) {
case SC_CARDCTL_GET_DEFAULT_KEY:
return auth_get_default_key(card,
(struct sc_cardctl_default_key *) ptr);
case SC_CARDCTL_OBERTHUR_GENERATE_KEY:
return auth_generate_key(card,
(struct sc_cardctl_oberthur_genkey_info *) ptr);
case SC_CARDCTL_OBERTHUR_UPDATE_KEY:
return auth_update_component(card,
(struct sc_cardctl_oberthur_updatekey_info *) ptr);
case SC_CARDCTL_OBERTHUR_CREATE_PIN:
return auth_create_reference_data(card,
(struct sc_cardctl_oberthur_createpin_info *) ptr);
default:
return SC_ERROR_NOT_SUPPORTED;
}
}
static int
auth_read_component(sc_card_t *card, enum SC_CARDCTL_OBERTHUR_KEY_TYPE type,
int num, unsigned char *out, size_t outlen)
{
int rv;
struct sc_apdu apdu;
struct auth_private_data *prv = card->drv_data;
unsigned char resp[SC_MAX_APDU_BUFFER_SIZE];
sc_debug(card->ctx, ": num %i, outlen %i, type %i\n", num, outlen, type);
if (type!=SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC)
return SC_ERROR_NO_CARD_SUPPORT;
else if (!outlen)
return SC_ERROR_INCORRECT_PARAMETERS;
if (prv->aid.tag == AID_OBERTHUR_V5) {
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xB4, num, 0x00);
apdu.cla |= 0x80;
apdu.le = outlen;
apdu.resp = resp;
apdu.resplen = sizeof(resp);
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
if (outlen < apdu.resplen)
return SC_ERROR_WRONG_LENGTH;
memcpy(out, apdu.resp, apdu.resplen);
return apdu.resplen;
}
else {
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xB2, num, 0x04);
apdu.cla |= 0x80;
apdu.le = outlen;
apdu.resp = resp;
apdu.resplen = sizeof(resp);
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
if (outlen < apdu.resplen)
return SC_ERROR_WRONG_LENGTH;
memcpy(out, apdu.resp, apdu.resplen);
return apdu.resplen;
}
}
static int auth_get_pin_reference (struct sc_card *card,
int type, int reference, int cmd, int *out_ref)
{
struct auth_private_data *prv = card->drv_data;
if (!card || !out_ref)
return SC_ERROR_INVALID_ARGUMENTS;
switch (prv->aid.tag) {
case AID_OBERTHUR_V5 :
switch (type) {
case SC_AC_CHV:
if (reference == 1) {
if (cmd==SC_PIN_CMD_VERIFY)
*out_ref = 0x81;
else
*out_ref = 0x01;
}
else if (reference == 2)
*out_ref = 0x04;
else
return SC_ERROR_INVALID_PIN_REFERENCE;
break;
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
break;
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
return 0;
}
static void
auth_init_pin_info(struct sc_card *card, struct sc_pin_cmd_pin *pin,
unsigned int type)
{
struct auth_private_data *data = card->drv_data;
pin->offset = 0;
pin->pad_char = 0xFF;
pin->encoding = SC_PIN_ENCODING_ASCII;
switch (data->aid.tag) {
case AID_OBERTHUR_V5 :
if (type==AUTH_PIN) {
pin->max_length = 64;
pin->pad_length = 64;
}
else {
pin->max_length = 16;
pin->pad_length = 16;
}
break;
}
}
static int
auth_verify(struct sc_card *card, unsigned int type,
int ref, const u8 *data, size_t data_len, int *tries_left)
{
sc_apdu_t apdu;
int rv, pin_ref;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
struct sc_pin_cmd_pin pinfo;
sc_debug(card->ctx,": type %i; ref %i, data_len %i\n", type, ref, data_len);
if (ref == 3) {
rv = auth_get_pin_reference (card, type, 1, SC_PIN_CMD_VERIFY, &pin_ref);
if (rv)
return rv;
sc_format_apdu(card, &apdu, SC_APDU_CASE_1, 0x20, 0x00, pin_ref);
apdu.lc = 0x0;
apdu.le = 0x0;
apdu.resplen = 0;
apdu.resp = NULL;
apdu.p2 = pin_ref;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
if (apdu.sw1 != 0x90 || apdu.sw2 != 0x00) {
rv = auth_get_pin_reference (card, type, 2, SC_PIN_CMD_VERIFY, &pin_ref);
if (rv)
return rv;
apdu.p2 = pin_ref;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
}
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
if (apdu.sw1 != 0x90 || apdu.sw2 != 0x00 ) {
if (data && data_len > 1 && *data!=ref && !isalnum(*data)) {
rv = auth_verify(card, type, *data,
data+1, data_len - 1, tries_left);
}
}
return rv;
}
rv = auth_get_pin_reference (card, type, ref, SC_PIN_CMD_VERIFY, &pin_ref);
if (rv)
return rv;
sc_debug(card->ctx, " pin ref %X\n", pin_ref);
auth_init_pin_info(card, &pinfo, AUTH_PIN);
if (data_len > pinfo.pad_length)
return SC_ERROR_INVALID_ARGUMENTS;
memset(sbuf, pinfo.pad_char, pinfo.pad_length);
memcpy(sbuf, data, data_len);
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x20, 0, pin_ref);
apdu.data = sbuf;
apdu.datalen = pinfo.pad_length;
apdu.lc = pinfo.pad_length;
apdu.sensitive = 1;
rv = sc_transmit_apdu(card, &apdu);
memset(sbuf, 0, sizeof(sbuf));
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
if (tries_left && apdu.sw1 == 0x63 && (apdu.sw2 & 0xF0) == 0xC0)
*tries_left = apdu.sw2 & 0x0F;
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
return rv;
}
static int
auth_change_reference_data (struct sc_card *card, unsigned int type,
int ref, const u8 *old, size_t oldlen,
const u8 *new, size_t newlen, int *tries_left)
{
sc_apdu_t apdu;
int rv, pin_ref;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
struct sc_pin_cmd_pin pinfo;
rv = auth_get_pin_reference (card, type, ref, SC_PIN_CMD_CHANGE, &pin_ref);
if (rv)
return rv;
sc_debug(card->ctx, " pin ref %X\n", pin_ref);
auth_init_pin_info(card, &pinfo, AUTH_PIN);
if (oldlen > pinfo.pad_length || newlen > pinfo.pad_length)
return SC_ERROR_INVALID_ARGUMENTS;
memset(sbuf, pinfo.pad_char, pinfo.pad_length * 2);
memcpy(sbuf, old, oldlen);
memcpy(sbuf + pinfo.pad_length, new, newlen);
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x24, 0, pin_ref);
apdu.data = sbuf;
apdu.datalen = pinfo.pad_length * 2;
apdu.lc = pinfo.pad_length * 2;
apdu.sensitive = 1;
rv = sc_transmit_apdu(card, &apdu);
memset(sbuf, 0, sizeof(sbuf));
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
if (tries_left && apdu.sw1 == 0x63 && (apdu.sw2 & 0xF0) == 0xC0)
*tries_left = apdu.sw2 & 0x0F;
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
return rv;
}
static int
auth_reset_retry_counter(struct sc_card *card, unsigned int type,
int ref, const u8 *puk, size_t puklen,
const u8 *pin, size_t pinlen)
{
sc_apdu_t apdu;
int rv, pin_ref, len;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
struct sc_pin_cmd_pin pin_info, puk_info;
rv = auth_get_pin_reference (card, type, ref, SC_PIN_CMD_UNBLOCK, &pin_ref);
if (rv)
return rv;
sc_debug(card->ctx, " pin ref %X\n", pin_ref);
auth_init_pin_info(card, &puk_info, AUTH_PUK);
auth_init_pin_info(card, &pin_info, AUTH_PIN);
if (puklen > puk_info.pad_length || pinlen > pin_info.pad_length)
return SC_ERROR_INVALID_ARGUMENTS;
memset(sbuf, puk_info.pad_char, puk_info.pad_length);
memcpy(sbuf, puk, puklen);
len = puk_info.pad_length;
if (pin && pinlen) {
memset(sbuf + len, pin_info.pad_char, pin_info.pad_length);
memcpy(sbuf + len, pin, pinlen);
len += pin_info.pad_length;
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x2C,
len == puk_info.pad_length ? 1 : 0, pin_ref);
apdu.data = sbuf;
apdu.datalen = len;
apdu.lc = len;
apdu.sensitive = 1;
rv = sc_transmit_apdu(card, &apdu);
memset(sbuf, 0, sizeof(sbuf));
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
return rv;
}
static int
auth_create_reference_data (struct sc_card *card,
struct sc_cardctl_oberthur_createpin_info *args)
{
sc_apdu_t apdu;
int rv, pin_ref, len;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
struct sc_pin_cmd_pin pin_info, puk_info;
struct auth_private_data *prv = card->drv_data;
if (args->pin_tries < 1 || !args->pin || !args->pin_len)
return SC_ERROR_INVALID_ARGUMENTS;
if (prv->aid.tag == AID_OBERTHUR_V5 && args->type == SC_AC_CHV) {
if (args->ref == 1)
pin_ref = 0x01;
else if (args->ref == 2)
pin_ref = 0x04;
else
return SC_ERROR_INVALID_PIN_REFERENCE;
}
else
return SC_ERROR_INVALID_ARGUMENTS;
sc_debug(card->ctx, " pin ref %X\n", pin_ref);
auth_init_pin_info(card, &puk_info, AUTH_PUK);
auth_init_pin_info(card, &pin_info, AUTH_PIN);
if (args->puk && args->puk_len && (args->puk_len%puk_info.pad_length))
return SC_ERROR_INVALID_ARGUMENTS;
len = 0;
sbuf[len++] = args->pin_tries;
sbuf[len++] = pin_info.pad_length;
memset(sbuf + len, pin_info.pad_char, pin_info.pad_length);
memcpy(sbuf + len, args->pin, args->pin_len);
len += pin_info.pad_length;
if (args->puk && args->puk_len) {
sbuf[len++] = args->puk_tries;
sbuf[len++] = args->puk_len / puk_info.pad_length;
memcpy(sbuf + len, args->puk, args->puk_len);
len += args->puk_len;
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x24, 1, pin_ref);
apdu.data = sbuf;
apdu.datalen = len;
apdu.lc = len;
apdu.sensitive = 1;
rv = sc_transmit_apdu(card, &apdu);
memset(sbuf, 0, sizeof(sbuf));
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
return rv;
}
static int
auth_logout(struct sc_card *card)
{
sc_apdu_t apdu;
int rv, pin_ref;
struct auth_private_data *data = card->drv_data;
int reset_flag = data->aid.tag == AID_OBERTHUR_V5 ? 0x20 : 0x00;
rv = auth_get_pin_reference (card, SC_AC_CHV, 1, SC_PIN_CMD_UNBLOCK, &pin_ref);
if (rv)
return rv;
sc_format_apdu(card, &apdu, SC_APDU_CASE_1, 0x2E, 0x00, 0x00);
apdu.cla = 0x80;
apdu.lc = 0x0;
apdu.le = 0x0;
apdu.resplen = 0;
apdu.resp = NULL;
apdu.p2 = pin_ref | reset_flag;
rv = sc_transmit_apdu(card, &apdu);
rv = auth_get_pin_reference (card, SC_AC_CHV, 2, SC_PIN_CMD_UNBLOCK, &pin_ref);
if (rv)
return rv;
apdu.p2 = pin_ref | reset_flag;
rv = sc_transmit_apdu(card, &apdu);
return rv;
}
static int
write_publickey (struct sc_card *card, unsigned int offset,
const u8 *buf, size_t count)
{
int ii, rv;
struct sc_pkcs15_pubkey_rsa key;
int len = 0, der_size = 0;
struct sc_cardctl_oberthur_updatekey_info args;
if (card->ctx->debug >= 5) {
char debug_buf[2048];
debug_buf[0] = 0;
sc_hex_dump(card->ctx, buf, count, debug_buf, sizeof(debug_buf));
sc_debug(card->ctx, "write_publickey in %d bytes :\n%s", count, debug_buf);
}
if (offset > sizeof(rsa_der))
return SC_ERROR_INVALID_ARGUMENTS;
len = offset+count > sizeof(rsa_der) ? sizeof(rsa_der) - offset : count;
memcpy(rsa_der + offset, buf, len);
rsa_der_len = offset + len;
if (rsa_der[0]==0x30) {
if (rsa_der[1] & 0x80)
for (ii=0; ii < (rsa_der[1]&0x0F); ii++)
der_size = der_size*0x100 + rsa_der[2+ii];
else
der_size = rsa_der[1];
}
sc_debug(card->ctx, " der_size %i\n",der_size);
if (offset + len < der_size + 2)
return len;
rv = sc_pkcs15_decode_pubkey_rsa(card->ctx, &key, rsa_der, rsa_der_len);
rsa_der_len = 0;
memset(rsa_der, 0, sizeof(rsa_der));
if (rv) {
sc_error(card->ctx, " cannot decode public key\n");
return SC_ERROR_INVALID_ASN1_OBJECT;
}
memset(&args, 0, sizeof(args));
args.type = SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC;
args.component = 1;
args.data = key.modulus.data;
args.len = key.modulus.len;
rv = auth_update_component(card, &args);
if (rv)
goto end;
memset(&args, 0, sizeof(args));
args.type = SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC;
args.component = 2;
args.data = key.exponent.data;
args.len = key.exponent.len;
rv = auth_update_component(card, &args);
if (rv >= 0)
rv = len;
end:
card->cla &= ~0x80;
return rv;
}
static int
auth_update_binary(struct sc_card *card, unsigned int offset,
const u8 *buf, size_t count, unsigned long flags)
{
int rv = 0;
sc_debug(card->ctx, "; offset %i; count %i\n", offset, count);
sc_debug(card->ctx, "; last selected : magic %X; ef %X\n",
last_selected_file.magic, last_selected_file.ef_structure);
if (offset & ~0x7FFF) {
sc_error(card->ctx, "Invalid file offset %u",offset);
return SC_ERROR_INVALID_ARGUMENTS;
}
if (last_selected_file.magic==SC_FILE_MAGIC &&
last_selected_file.ef_structure == SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC) {
rv = write_publickey(card, offset, buf, count);
}
else if (last_selected_file.magic==SC_FILE_MAGIC &&
last_selected_file.ef_structure == SC_CARDCTL_OBERTHUR_KEY_DES) {
struct sc_cardctl_oberthur_updatekey_info args;
memset(&args, 0, sizeof(args));
args.type = SC_CARDCTL_OBERTHUR_KEY_DES;
args.component = 0;
args.data = (unsigned char *)buf;
args.len = count;
rv = auth_update_component(card, &args);
}
else {
rv = iso_ops->update_binary(card, offset, buf, count, 0);
}
SC_TEST_RET(card->ctx, rv, "Card returned error");
return rv;
}
static int
auth_read_binary(struct sc_card *card, unsigned int offset,
u8 *buf, size_t count, unsigned long flags)
{
int rv;
struct auth_private_data *data = card->drv_data;
sc_debug(card->ctx,"; offset %i; size %i; flags 0x%lX\n", offset, count, flags);
sc_debug(card->ctx,"; last selected : magic %X; ef %X\n",
last_selected_file.magic, last_selected_file.ef_structure);
if (offset & ~0x7FFF) {
sc_error(card->ctx, "Invalid file offset %u",offset);
return SC_ERROR_INVALID_ARGUMENTS;
}
if (last_selected_file.magic==SC_FILE_MAGIC &&
last_selected_file.ef_structure == SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC) {
int jj;
unsigned char resp[0x100], *out = NULL;
size_t resp_len, out_len;
struct sc_pkcs15_bignum bn[2];
struct sc_pkcs15_pubkey_rsa key;
resp_len = sizeof(resp);
rv = auth_read_component(card, SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC,
data->aid.tag == AID_OBERTHUR_V5 ? 2 : 1,
resp, resp_len);
if (rv<0)
return rv;
for (jj=0; jj<rv && *(resp+jj)==0; jj++)
;
bn[0].data = malloc(rv - jj);
bn[0].len = rv - jj;
memcpy(bn[0].data, resp + jj, rv - jj);
rv = auth_read_component(card, SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC,
data->aid.tag == AID_OBERTHUR_V5 ? 1 : 2,
resp, resp_len);
if (rv <= 0)
return rv;
bn[1].data = malloc(rv);
bn[1].len = rv;
memcpy(bn[1].data, resp, rv);
key.exponent = bn[0];
key.modulus = bn[1];
if (sc_pkcs15_encode_pubkey_rsa(card->ctx, &key, &out, &out_len)) {
sc_error(card->ctx, "cannot decode public key\n");
rv = SC_ERROR_INVALID_ASN1_OBJECT;
}
else {
rv = out_len - offset > count ? count : out_len - offset;
memcpy(buf, out + offset, rv);
if (card->ctx->debug >= 5) {
char debug_buf[2048];
debug_buf[0] = 0;
sc_hex_dump(card->ctx, buf, rv, debug_buf, sizeof(debug_buf));
sc_debug(card->ctx, "write_publickey in %d bytes :\n%s",
count, debug_buf);
}
}
if (bn[0].data) free(bn[0].data);
if (bn[1].data) free(bn[1].data);
if (out) free(out);
}
else {
rv = iso_ops->read_binary(card, offset, buf, count, 0);
}
SC_TEST_RET(card->ctx, rv, "Card returned error");
return rv;
}
static int
auth_delete_record(struct sc_card *card, unsigned int nr_rec)
{
int rv = 0;
struct sc_apdu apdu;
sc_debug(card->ctx, "auth_delete_record(): nr_rec %i\n", nr_rec);
sc_format_apdu(card, &apdu, SC_APDU_CASE_1, 0x32, nr_rec, 0x04);
apdu.cla = 0x80;
apdu.lc = 0x0;
apdu.le = 0x0;
apdu.resplen = 0;
apdu.resp = NULL;
rv = sc_transmit_apdu(card, &apdu);
SC_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
SC_TEST_RET(card->ctx, rv, "Card returned error");
return rv;
}
static struct sc_card_driver *
sc_get_driver(void)
{
if (iso_ops == NULL)
iso_ops = sc_get_iso7816_driver()->ops;
auth_ops = *iso_ops;
auth_ops.match_card = auth_match_card;
auth_ops.init = auth_init;
auth_ops.finish = auth_finish;
auth_ops.select_file = auth_select_file;
auth_ops.list_files = auth_list_files;
auth_ops.delete_file = auth_delete_file;
auth_ops.create_file = auth_create_file;
auth_ops.read_binary = auth_read_binary;
auth_ops.update_binary = auth_update_binary;
auth_ops.delete_record = auth_delete_record;
auth_ops.card_ctl = auth_card_ctl;
auth_ops.set_security_env = auth_set_security_env;
auth_ops.restore_security_env = auth_restore_security_env;
auth_ops.compute_signature = auth_compute_signature;
auth_ops.decipher = auth_decipher;
auth_ops.pin_cmd = NULL;
auth_ops.verify = auth_verify;
auth_ops.reset_retry_counter = auth_reset_retry_counter;
auth_ops.change_reference_data = auth_change_reference_data;
auth_ops.logout = auth_logout;
return &auth_drv;
}
struct sc_card_driver *
sc_get_oberthur_driver(void)
{
return sc_get_driver();
}
#endif /* HAVE_OPENSSL */