apo/PollDesfire
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Lynn Ochs 2022-11-22 17:13:44 +01:00
parent 084866dbbc
commit 3499cde3f8
3 changed files with 195 additions and 178 deletions
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36
poll_desfire.c
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@ -69,7 +69,12 @@ int main(int argc, char **argv) {
res = mifare_desfire_authenticate(tag, 0, key_master);
if (res >= 0) {
warnx("Old tag detected: %s", tag_uid);
res = mifare_desfire_change_key(tag, 0, key_master, key_null);
res =
mifare_desfire_change_key(tag, 0, key_null, key_master);
if (res < 0) {
warnx("Could not change key: %d", res);
goto next_tag;
}
}
// Card needs to have default null key as master
@ -80,7 +85,8 @@ int main(int argc, char **argv) {
}
// create application
res = mifare_desfire_create_application_aes(tag, aid, MDAPP_SETTINGS(0, 1, 0, 0, 1), 1);
res = mifare_desfire_create_application_aes(
tag, aid, MDAPP_SETTINGS(0, 1, 0, 0, 1), 1);
if (res < 0) {
warnx("Could not create application: %d", res);
goto next_tag;
@ -96,26 +102,36 @@ int main(int argc, char **argv) {
// Key should be null
res = mifare_desfire_authenticate_aes(tag, 0, key_null);
if (res < 0) {
warnx("Could not authenticate new application with default key: %d", res);
warnx(
"Could not authenticate new application with default "
"key: %d",
res);
goto next_tag;
}
// Update to our key
res = mifare_desfire_change_key(tag, 0, key_master, key_null);
if (res < 0) {
warnx("Could not change key of new application to master key: %d", res);
warnx(
"Could not change key of new application to master "
"key: %d",
res);
goto next_tag;
}
// Authenticate with new key
res = mifare_desfire_authenticate_aes(tag, 0, key_master);
if (res < 0) {
warnx("Could not authenticate new application with our key: %d", res);
warnx(
"Could not authenticate new application with our key: "
"%d",
res);
goto next_tag;
}
// Create file
res = mifare_desfire_create_std_data_file(tag, 0, 0, MDAR(0, 0, 0, 0), RANDOM_UID_SIZE);
res = mifare_desfire_create_std_data_file(
tag, 0, 0, MDAR(0, 0, 0, 0), RANDOM_UID_SIZE);
if (res < 0) {
warnx("Could not create data file: %d", res);
goto next_tag;
@ -130,7 +146,8 @@ int main(int argc, char **argv) {
goto next_tag;
}
if (RANDOM_UID_SIZE != read(fd, &uid_data[0], RANDOM_UID_SIZE)) {
if (RANDOM_UID_SIZE !=
read(fd, &uid_data[0], RANDOM_UID_SIZE)) {
warnx("Could not read data from /dev/random");
goto next_tag;
}
@ -138,7 +155,8 @@ int main(int argc, char **argv) {
}
// Write data
res = mifare_desfire_write_data(tag, 0, 0, RANDOM_UID_SIZE, &uid_data[0]);
res = mifare_desfire_write_data(tag, 0, 0, RANDOM_UID_SIZE,
&uid_data[0]);
if (res < 0) {
warnx("Could not write UID data to tag: %d", res);
goto next_tag;
@ -168,7 +186,7 @@ int main(int argc, char **argv) {
fprintf(out, "\n");
fflush(out);
next_tag:
next_tag:
free(tag_uid);
mifare_desfire_disconnect(tag);

1
poll_desfire.h
View File

@ -3,4 +3,3 @@
int init(nfc_context **context, nfc_device **device);
void poll_target(nfc_device *device);