MifareDESFireKey generate_rand_aes_key()
{
uint8_t rand_key[16];
RAND_bytes(rand_key, 16);
MifareDESFireKey nkey = mifare_desfire_aes_key_new (rand_key);
return nkey;
}
int
explain_tag (MifareTag tag)
{
bool aborting = false;
mifare_desfire_connect (tag);
MifareDESFireAID ucard_info_aid = mifare_desfire_aid_new (UCARD_INFO_AID);
if (mifare_desfire_select_application (tag, ucard_info_aid) < 0) {
freefare_perror (tag, "mifare_desfire_select_application");
return -1;
}
free (ucard_info_aid);
MifareDESFireKey key = mifare_desfire_aes_key_new (admin_key_data);
if (mifare_desfire_authenticate_aes (tag, 0, key) < 0) {
freefare_perror (tag, "mifare_desfire_authenticate_aes");
return -1;
}
uint8_t records[(3+16)*32];
int records_length;
records_length = mifare_desfire_read_records_ex (tag, USER_KEYRING_FILENO, 0, 0, records, USER_KEYRING_COMMUNICATION_MODE);
if (records_length < 0) {
if (BOUNDARY_ERROR == mifare_desfire_last_picc_error (tag)) {
warnx ("Card is empty");
return 0;
}
freefare_perror (tag, "mifare_desfire_read_records_ex");
return -1;
}
for (int i = 0; (!aborting) && (i < records_length); i += (3+16)) {
uint32_t raw_aid = records[i] << 16 | records[i+1] << 8 | records[i+2];
MifareDESFireAID aid = mifare_desfire_aid_new (raw_aid);
MifareDESFireKey key = mifare_desfire_des_key_new (records + i + 3);
if (explain_application (tag, aid, key) < 0)
aborting = true;
mifare_desfire_key_free (key);
free (aid);
}
mifare_desfire_disconnect (tag);
return (aborting) ? -1 : 0;
}
void
test_mifare_desfire_ev1_aes2 (void)
{
int res;
MifareDESFireKey key;
mifare_desfire_auto_authenticate (tag, 0);
// Setup the AES key
key = mifare_desfire_aes_key_new_with_version (key_data_aes, key_data_aes_version);
res = mifare_desfire_change_key (tag, 0x80, key, NULL);
cut_assert_success ("mifare_desfire_change_key");
mifare_desfire_key_free (key);
// Authenticate with the AES key
key = mifare_desfire_aes_key_new_with_version (key_data_aes, key_data_aes_version);
res = mifare_desfire_authenticate_aes (tag, 0, key);
cut_assert_success ("mifare_desfire_authenticate");
mifare_desfire_key_free (key);
res = mifare_desfire_format_picc (tag);
cut_assert_success ("mifare_desfire_format_picc()");
key = mifare_desfire_aes_key_new_with_version (key_data_aes, key_data_aes_version);
res = mifare_desfire_authenticate_aes (tag, 0, key);
cut_assert_success ("mifare_desfire_authenticate");
mifare_desfire_key_free (key);
uint32_t size;
res = mifare_desfire_free_mem (tag, &size);
cut_assert_success ("mifare_desfire_free_mem");
// Do some commands to check CMAC is properly handled
res = mifare_desfire_free_mem (tag, &size);
cut_assert_success ("mifare_desfire_free_mem");
struct mifare_desfire_version_info info;
res = mifare_desfire_get_version (tag, &info);
cut_assert_success ("mifare_desfire_get_version");
res = mifare_desfire_change_key_settings (tag, 0x0F);
cut_assert_success ("mifare_desfire_change_key_settings");
res = mifare_desfire_free_mem (tag, &size);
cut_assert_success ("mifare_desfire_free_mem");
MifareDESFireAID aid = mifare_desfire_aid_new (0x112233);
mifare_desfire_delete_application (tag, aid);
res = mifare_desfire_create_application (tag, aid, 0xff, 0x81);
cut_assert_success ("mifare_desfire_create_application");
res = mifare_desfire_select_application (tag, aid);
cut_assert_success ("mifare_desfire_select_application");
key = mifare_desfire_aes_key_new (key_data_aes);
res = mifare_desfire_authenticate_aes (tag, 0, key);
cut_assert_success ("mifare_desfire_authenticate");
free (key);
key = mifare_desfire_aes_key_new_with_version (key_data_aes, key_data_aes_version);
res = mifare_desfire_change_key (tag, 0x00, key, NULL);
cut_assert_success ("mifare_desfire_change_key");
mifare_desfire_key_free (key);
key = mifare_desfire_aes_key_new (key_data_aes);
res = mifare_desfire_authenticate_aes (tag, 0, key);
cut_assert_success ("mifare_desfire_authenticate");
free (key);
res = mifare_desfire_create_std_data_file (tag, 1, MDCM_MACED, 0x0000, 512);
if ((mifare_desfire_last_picc_error (tag) != DUPLICATE_ERROR) && (mifare_desfire_last_picc_error(tag) != OPERATION_OK))
cut_assert_success ("mifare_desfire_create_std_data_file");
char sample_data[] = "Hello World! I'm a string that is probably too long "
"to feet in a single frame. For this reason, it will be split and like"
"ly, some failure in the algorirthm should trigger an error in this uni"
"t test.";
res = mifare_desfire_write_data_ex (tag, 1, 0, strlen (sample_data), sample_data, MDCM_MACED);
cut_assert_success ("mifare_desfire_write_data");
char buffer[1024];
res = mifare_desfire_read_data_ex (tag, 1, 0, 27, buffer, MDCM_MACED);
cut_assert_success ("mifare_desfire_read_data");
cut_assert_equal_memory (buffer, res, sample_data, 27, cut_message ("AES crypto failed"));
uint8_t s, c;
res = mifare_desfire_get_key_settings (tag, &s, &c);
cut_assert_success ("mifare_desfire_get__key_settings");
res = mifare_desfire_read_data_ex (tag, 1, 27, 27, buffer, MDCM_MACED);
cut_assert_success ("mifare_desfire_read_data");
cut_assert_equal_memory (buffer, res, sample_data + 27, 27, cut_message ("AES crypto failed"));
res = mifare_desfire_read_data_ex (tag, 1, 0, 0, buffer, MDCM_MACED);
cut_assert_success ("mifare_desfire_read_data");
cut_assert_equal_memory (buffer, strlen (buffer), sample_data, strlen (sample_data), cut_message ("AES crypto failed"));
// Revert to the default DES key
res = mifare_desfire_select_application (tag, NULL);
cut_assert_success ("mifare_desfire_select_application");
key = mifare_desfire_aes_key_new_with_version (key_data_aes, key_data_aes_version);
res = mifare_desfire_authenticate_aes (tag, 0, key);
cut_assert_success ("mifare_desfire_authenticate");
mifare_desfire_key_free (key);
key = mifare_desfire_des_key_new (key_data_null);
res = mifare_desfire_change_key (tag, 0x00, key, NULL);
cut_assert_success ("mifare_desfire_change_key");
mifare_desfire_key_free (key);
}
int
main (void)
{
uint8_t issuer_key_data[16];
nfc_connstring nfc_devices[8];
size_t nfc_device_count;
nfc_device_count = nfc_list_devices (NULL, nfc_devices, 8);
for (size_t n = 0; n < nfc_device_count; n++) {
nfc_device *nfc_device = nfc_open (NULL, nfc_devices[n]);
MifareTag *tags = freefare_get_tags (nfc_device);
for (int i = 0; tags[i]; i++) {
MifareTag tag = tags[i];
if (DESFIRE == freefare_get_tag_type (tag)) {
printf ("Fond Mifare DESFire with UID: %s\n", freefare_get_tag_uid (tag));
printf ("Issuer private key: ");
char buffer[BUFSIZ];
system ("stty -echo");
fgets (buffer, BUFSIZ, stdin);
system ("stty echo");
char *p;
if ((p = strchr (buffer, '\n')))
*p = '\0';
ucard_derivate_password (buffer, strlen (buffer), 16, issuer_key_data);
memset (buffer, '\0', strlen (buffer));
MifareDESFireKey key = mifare_desfire_aes_key_new (issuer_key_data);
MifareDESFireAID ucard_info_aid = mifare_desfire_aid_new (UCARD_INFO_AID);
int res = mifare_desfire_connect (tag);
res = mifare_desfire_select_application (tag, ucard_info_aid);
if (res < 0) {
freefare_perror (tag, "mifare_desfire_select_application");
goto end;
}
res = mifare_desfire_authenticate_aes (tag, 1, key);
if (res < 0) {
freefare_perror (tag, "mifare_desfire_authenticate_aes");
goto end;
}
char owner_info[BUFSIZ];
res = mifare_desfire_read_data_ex (tag, 10, 0, 0, owner_info, MDCM_ENCIPHERED);
if (res < 0) {
freefare_perror (tag, "mifare_desfire_read_data");
goto end;
}
owner_info[res] = '\0';
printf ("Owner: %s\n", owner_info);
end:
mifare_desfire_disconnect (tag);
mifare_desfire_key_free (key);
free (ucard_info_aid);
}
}
nfc_close (nfc_device);
}
exit(EXIT_SUCCESS);
}
int
main (int argc, char *argv[])
{
/*
* Collect information
*/
bool f_flag = false;
char *p;
char ch;
while ((ch = getopt (argc, argv, "f")) != -1) {
switch (ch) {
case 'f':
f_flag = true;
break;
default:
usage (argv[0]);
exit (EXIT_FAILURE);
break;
}
}
char issuer_address[BUFSIZ];
fprintf (stderr, "Card issuer address: ");
fgets (issuer_address, BUFSIZ, stdin);
if ((p = strchr (issuer_address, '\n')))
*p = '\0';
char issuer_password[BUFSIZ];
read_password ("Issuer password", issuer_password, BUFSIZ);
fprintf (stderr, "\n");
uint8_t issuer_password_data[16];
ucard_derivate_password (issuer_password, strlen (issuer_password), 16, issuer_password_data);
memset (issuer_password, '\0', strlen (issuer_password));
MifareDESFireKey card_issuer_key = mifare_desfire_aes_key_new (issuer_password_data);
char owner_full_name[BUFSIZ];
fprintf (stderr, "Card owner full user name: ");
fgets (owner_full_name, BUFSIZ, stdin);
if ((p = strchr (owner_full_name, '\n')))
*p = '\0';
char user_password[BUFSIZ];
read_password ("User password", user_password, BUFSIZ);
fprintf (stderr, "\n");
uint8_t user_key_data[16];
ucard_derivate_password (user_password, strlen (user_password), 16, user_key_data);
memset (user_password, '\0', strlen (user_password));
MifareDESFireKey user_key = mifare_desfire_aes_key_new_with_version (user_key_data, UCARD_AES_KEY_VERSION);
char admin_password[BUFSIZ];
read_password ("Admin password", admin_password, BUFSIZ);
fprintf (stderr, "\n");
uint8_t admin_key_data[16];
ucard_derivate_password (admin_password, strlen (admin_password), 16, admin_key_data);
memset (admin_password, '\0', strlen (admin_password));
MifareDESFireKey admin_key = mifare_desfire_aes_key_new_with_version (admin_key_data, UCARD_AES_KEY_VERSION);
uint8_t null_key_data[16] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
MifareDESFireKey null_des_key = mifare_desfire_des_key_new (null_key_data);
MifareDESFireKey null_aes_key = mifare_desfire_aes_key_new (null_key_data);
nfc_connstring nfc_devices[8];
size_t nfc_device_count;
nfc_device_count = nfc_list_devices (NULL, nfc_devices, 8);
for (size_t n = 0; n < nfc_device_count; n++) {
nfc_device *nfc_device = nfc_open(NULL, nfc_devices[n]);
MifareTag *tags = freefare_get_tags (nfc_device);
for (int i = 0; tags[i]; i++) {
MifareTag tag = tags[i];
if (DESFIRE == freefare_get_tag_type (tag)) {
/* Actually setup the card */
printf ("Fond Mifare DESFire with UID: %s\n", freefare_get_tag_uid (tag));
/*
* Master Application
*
* Key 0: Card owner 'user' private key
*/
MifareDESFireAID ucard_info_aid = mifare_desfire_aid_new (UCARD_INFO_AID);
int res = mifare_desfire_connect (tag);
if (f_flag) {
if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, user_key);
if (0 == res) res = mifare_desfire_format_picc (tag);
} else {
if (0 == res) res = mifare_desfire_authenticate (tag, 0, null_des_key);
if (0 == res) res = mifare_desfire_change_key (tag, 0, user_key, NULL);
if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, user_key);
}
if (0 == res) res = mifare_desfire_create_application (tag, ucard_info_aid, 0x0F, 0x83);
if (!f_flag) {
if (0 == res) res = mifare_desfire_change_key_settings (tag, 0x01);
}
/*
* Card information application
*
* Key 0: Card owner 'admin' private key
* Key 1: Card issuer private key
* Key 2: Anonymous access public key
*
* File 9: Card issuer information
* File 10: Card owner information
* File 11: Keyring
*/
if (0 == res) res = mifare_desfire_select_application (tag, ucard_info_aid);
if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, null_aes_key);
if (0 == res) res = mifare_desfire_change_key (tag, 0, admin_key, NULL);
if (0 == res) res = mifare_desfire_authenticate_aes (tag, 0, admin_key);
if (0 == res) res = mifare_desfire_change_key (tag, 1, card_issuer_key, NULL);
if (0 == res) res = mifare_desfire_create_std_data_file (tag, 9, MDCM_ENCIPHERED, 0x0000, strlen (issuer_address));
if (0 == res) res = mifare_desfire_write_data (tag, 9, 0, strlen (issuer_address), issuer_address);
if (strlen (issuer_address) == (size_t) res) res = mifare_desfire_change_file_settings (tag, 9, MDCM_ENCIPHERED, 0x2F11);
if (0 == res) res = mifare_desfire_create_std_data_file (tag, 10, MDCM_ENCIPHERED, 0x0000, strlen (owner_full_name));
if (0 == res) res = mifare_desfire_write_data (tag, 10, 0, strlen (owner_full_name), owner_full_name);
if (strlen (owner_full_name) == (size_t) res) res = mifare_desfire_change_file_settings (tag, 10, MDCM_ENCIPHERED, 0x0F11);
if (0 == res) res = mifare_desfire_create_linear_record_file (tag, 11, MDCM_ENCIPHERED, 0xF20F, 3 + 16, 24);
if (0 == res) res = mifare_desfire_change_key_settings (tag, 0x01);
if (res < 0) {
fprintf (stderr, "Oops, something went wrong! (%s)\n", freefare_strerror (tag));
}
mifare_desfire_disconnect (tag);
free (ucard_info_aid);
}
}
nfc_close (nfc_device);
}
mifare_desfire_key_free (admin_key);
mifare_desfire_key_free (user_key);
mifare_desfire_key_free (card_issuer_key);
mifare_desfire_key_free (null_aes_key);
mifare_desfire_key_free (null_des_key);
exit(EXIT_SUCCESS);
}
