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Merge branch 'dev' of https://github.com/DarkFlippers/unleashed-firmware into xfw-dev --nobuild

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Willy-JL
2024-02-10 18:20:39 +00:00
parent 365afa8007 8a86571068
commit 49cb42fa70
5 changed files with 240 additions and 276 deletions
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454
applications/main/nfc/plugins/supported_cards/microel.c
View File

@@ -1,228 +1,228 @@
#include "nfc_supported_card_plugin.h"
#include <flipper_application/flipper_application.h>
#include <nfc/nfc_device.h>
#include <nfc/helpers/nfc_util.h>
#include <nfc/protocols/mf_classic/mf_classic_poller_sync.h>
#include <stdint.h>
#define TAG "Microel"
#define KEY_LENGTH 6
#define UID_LENGTH 4
typedef struct {
uint64_t a;
uint64_t b;
} MfClassicKeyPair;
static MfClassicKeyPair microel_1k_keys[] = {
{.a = 0x000000000000, .b = 0x000000000000}, // 000
{.a = 0x000000000000, .b = 0x000000000000}, // 001
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 002
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 003
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 004
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 005
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 006
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 007
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 008
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 009
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 010
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 011
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 012
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 013
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 014
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 015
};
const uint8_t verify_sector = 1;
void calculateSumHex(const uint8_t* uid, size_t uidSize, uint8_t sumHex[]) {
const uint8_t xorKey[] = {0x01, 0x92, 0xA7, 0x75, 0x2B, 0xF9};
int sum = 0;
for(size_t i = 0; i < uidSize; i++) {
sum += uid[i];
}
int sumTwoDigits = sum % 256;
if(sumTwoDigits % 2 == 1) {
sumTwoDigits += 2;
}
for(size_t i = 0; i < sizeof(xorKey); i++) {
sumHex[i] = sumTwoDigits ^ xorKey[i];
}
}
void generateKeyA(const uint8_t* uid, uint8_t uidSize, uint8_t keyA[]) {
uint8_t sumHex[6];
calculateSumHex(uid, uidSize, sumHex);
uint8_t firstCharacter = (sumHex[0] >> 4) & 0xF;
if(firstCharacter == 0x2 || firstCharacter == 0x3 || firstCharacter == 0xA ||
firstCharacter == 0xB) {
// XOR WITH 0x40
for(size_t i = 0; i < sizeof(sumHex); i++) {
keyA[i] = 0x40 ^ sumHex[i];
}
} else if(
firstCharacter == 0x6 || firstCharacter == 0x7 || firstCharacter == 0xE ||
firstCharacter == 0xF) {
// XOR WITH 0xC0
for(size_t i = 0; i < sizeof(sumHex); i++) {
keyA[i] = 0xC0 ^ sumHex[i];
}
} else {
//Key a is the same as sumHex
for(size_t i = 0; i < sizeof(sumHex); i++) {
keyA[i] = sumHex[i];
}
}
}
void generateKeyB(uint8_t keyA[], size_t keyASize, uint8_t keyB[]) {
for(size_t i = 0; i < keyASize; i++) {
keyB[i] = 0xFF ^ keyA[i];
}
}
static bool microel_read(Nfc* nfc, NfcDevice* device) {
FURI_LOG_D(TAG, "Entering Microel KDF");
furi_assert(nfc);
furi_assert(device);
bool is_read = false;
MfClassicData* data = mf_classic_alloc();
nfc_device_copy_data(device, NfcProtocolMfClassic, data);
do {
MfClassicType type = MfClassicType1k;
MfClassicError error = mf_classic_poller_sync_detect_type(nfc, &type);
if(error != MfClassicErrorNone) break;
//Get UID and check if it is 4 bytes
size_t uid_len;
const uint8_t* uid = mf_classic_get_uid(data, &uid_len);
FURI_LOG_D(TAG, "UID identified: %02X%02X%02X%02X", uid[0], uid[1], uid[2], uid[3]);
if(uid_len != UID_LENGTH) break;
// Generate keys
uint8_t keyA[KEY_LENGTH];
uint8_t keyB[KEY_LENGTH];
generateKeyA(uid, UID_LENGTH, keyA);
generateKeyB(keyA, KEY_LENGTH, keyB);
// Check key 0a to verify if it is a microel card
MfClassicKey key = {0};
nfc_util_num2bytes(nfc_util_bytes2num(keyA, KEY_LENGTH), COUNT_OF(key.data), key.data);
const uint8_t block_num = mf_classic_get_first_block_num_of_sector(0); // This is 0
MfClassicAuthContext auth_context;
error =
mf_classic_poller_sync_auth(nfc, block_num, &key, MfClassicKeyTypeA, &auth_context);
if(error != MfClassicErrorNone) {
break;
}
// Save keys generated to stucture
for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
if(microel_1k_keys[i].a == 0x000000000000) {
microel_1k_keys[i].a = nfc_util_bytes2num(keyA, KEY_LENGTH);
}
if(microel_1k_keys[i].b == 0x000000000000) {
microel_1k_keys[i].b = nfc_util_bytes2num(keyB, KEY_LENGTH);
}
}
MfClassicDeviceKeys keys = {};
for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
nfc_util_num2bytes(microel_1k_keys[i].a, sizeof(MfClassicKey), keys.key_a[i].data);
FURI_BIT_SET(keys.key_a_mask, i);
nfc_util_num2bytes(microel_1k_keys[i].b, sizeof(MfClassicKey), keys.key_b[i].data);
FURI_BIT_SET(keys.key_b_mask, i);
}
error = mf_classic_poller_sync_read(nfc, &keys, data);
if(error == MfClassicErrorNotPresent) {
FURI_LOG_W(TAG, "Failed to read data");
break;
}
nfc_device_set_data(device, NfcProtocolMfClassic, data);
is_read = (error == MfClassicErrorNone);
} while(false);
mf_classic_free(data);
return is_read;
}
static bool microel_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device);
furi_assert(parsed_data);
const MfClassicData* data = nfc_device_get_data(device, NfcProtocolMfClassic);
bool parsed = false;
do {
//Get UID
size_t uid_len;
const uint8_t* uid = mf_classic_get_uid(data, &uid_len);
if(uid_len != UID_LENGTH) break;
// Generate key from uid
uint8_t keyA[KEY_LENGTH];
generateKeyA(uid, UID_LENGTH, keyA);
// Verify key
MfClassicSectorTrailer* sec_tr =
mf_classic_get_sector_trailer_by_sector(data, verify_sector);
uint64_t key = nfc_util_bytes2num(sec_tr->key_a.data, 6);
uint64_t key_for_check_from_array = nfc_util_bytes2num(keyA, KEY_LENGTH);
if(key != key_for_check_from_array) break;
//Get credit in block number 8
const uint8_t* temp_ptr = data->block[4].data;
uint16_t balance = (temp_ptr[6] << 8) | (temp_ptr[5]);
uint16_t previus_balance = (data->block[5].data[6] << 8) | (data->block[5].data[5]);
furi_string_cat_printf(parsed_data, "\e#Microel Card\n");
furi_string_cat_printf(parsed_data, "UID:");
for(size_t i = 0; i < UID_LENGTH; i++) {
furi_string_cat_printf(parsed_data, " %02X", uid[i]);
}
furi_string_cat_printf(
parsed_data, "\nCurrent Credit: %d.%02d E \n", balance / 100, balance % 100);
furi_string_cat_printf(
parsed_data,
"Previus Credit: %d.%02d E \n",
previus_balance / 100,
previus_balance % 100);
parsed = true;
} while(false);
return parsed;
}
/* Actual implementation of app<>plugin interface */
static const NfcSupportedCardsPlugin microel_plugin = {
.protocol = NfcProtocolMfClassic,
.verify =
NULL, // the verification I need is based on verifying the keys generated via uid and try to authenticate not like on mizip that there is default b0 but added verify in read function
.read = microel_read,
.parse = microel_parse,
};
/* Plugin descriptor to comply with basic plugin specification */
static const FlipperAppPluginDescriptor microel_plugin_descriptor = {
.appid = NFC_SUPPORTED_CARD_PLUGIN_APP_ID,
.ep_api_version = NFC_SUPPORTED_CARD_PLUGIN_API_VERSION,
.entry_point = &microel_plugin,
};
/* Plugin entry point - must return a pointer to const descriptor */
const FlipperAppPluginDescriptor* microel_plugin_ep() {
return &microel_plugin_descriptor;
#include "nfc_supported_card_plugin.h"
#include <flipper_application/flipper_application.h>
#include <nfc/nfc_device.h>
#include <nfc/helpers/nfc_util.h>
#include <nfc/protocols/mf_classic/mf_classic_poller_sync.h>
#include <stdint.h>
#define TAG "Microel"
#define KEY_LENGTH 6
#define UID_LENGTH 4
typedef struct {
uint64_t a;
uint64_t b;
} MfClassicKeyPair;
static MfClassicKeyPair microel_1k_keys[] = {
{.a = 0x000000000000, .b = 0x000000000000}, // 000
{.a = 0x000000000000, .b = 0x000000000000}, // 001
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 002
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 003
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 004
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 005
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 006
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 007
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 008
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 009
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 010
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 011
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 012
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 013
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 014
{.a = 0xffffffffffff, .b = 0xffffffffffff}, // 015
};
const uint8_t verify_sector = 1;
void calculateSumHex(const uint8_t* uid, size_t uidSize, uint8_t sumHex[]) {
const uint8_t xorKey[] = {0x01, 0x92, 0xA7, 0x75, 0x2B, 0xF9};
int sum = 0;
for(size_t i = 0; i < uidSize; i++) {
sum += uid[i];
}
int sumTwoDigits = sum % 256;
if(sumTwoDigits % 2 == 1) {
sumTwoDigits += 2;
}
for(size_t i = 0; i < sizeof(xorKey); i++) {
sumHex[i] = sumTwoDigits ^ xorKey[i];
}
}
void generateKeyA(const uint8_t* uid, uint8_t uidSize, uint8_t keyA[]) {
uint8_t sumHex[6];
calculateSumHex(uid, uidSize, sumHex);
uint8_t firstCharacter = (sumHex[0] >> 4) & 0xF;
if(firstCharacter == 0x2 || firstCharacter == 0x3 || firstCharacter == 0xA ||
firstCharacter == 0xB) {
// XOR WITH 0x40
for(size_t i = 0; i < sizeof(sumHex); i++) {
keyA[i] = 0x40 ^ sumHex[i];
}
} else if(
firstCharacter == 0x6 || firstCharacter == 0x7 || firstCharacter == 0xE ||
firstCharacter == 0xF) {
// XOR WITH 0xC0
for(size_t i = 0; i < sizeof(sumHex); i++) {
keyA[i] = 0xC0 ^ sumHex[i];
}
} else {
//Key a is the same as sumHex
for(size_t i = 0; i < sizeof(sumHex); i++) {
keyA[i] = sumHex[i];
}
}
}
void generateKeyB(uint8_t keyA[], size_t keyASize, uint8_t keyB[]) {
for(size_t i = 0; i < keyASize; i++) {
keyB[i] = 0xFF ^ keyA[i];
}
}
static bool microel_read(Nfc* nfc, NfcDevice* device) {
FURI_LOG_D(TAG, "Entering Microel KDF");
furi_assert(nfc);
furi_assert(device);
bool is_read = false;
MfClassicData* data = mf_classic_alloc();
nfc_device_copy_data(device, NfcProtocolMfClassic, data);
do {
MfClassicType type = MfClassicType1k;
MfClassicError error = mf_classic_poller_sync_detect_type(nfc, &type);
if(error != MfClassicErrorNone) break;
//Get UID and check if it is 4 bytes
size_t uid_len;
const uint8_t* uid = mf_classic_get_uid(data, &uid_len);
FURI_LOG_D(TAG, "UID identified: %02X%02X%02X%02X", uid[0], uid[1], uid[2], uid[3]);
if(uid_len != UID_LENGTH) break;
// Generate keys
uint8_t keyA[KEY_LENGTH];
uint8_t keyB[KEY_LENGTH];
generateKeyA(uid, UID_LENGTH, keyA);
generateKeyB(keyA, KEY_LENGTH, keyB);
// Check key 0a to verify if it is a microel card
MfClassicKey key = {0};
nfc_util_num2bytes(nfc_util_bytes2num(keyA, KEY_LENGTH), COUNT_OF(key.data), key.data);
const uint8_t block_num = mf_classic_get_first_block_num_of_sector(0); // This is 0
MfClassicAuthContext auth_context;
error =
mf_classic_poller_sync_auth(nfc, block_num, &key, MfClassicKeyTypeA, &auth_context);
if(error != MfClassicErrorNone) {
break;
}
// Save keys generated to stucture
for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
if(microel_1k_keys[i].a == 0x000000000000) {
microel_1k_keys[i].a = nfc_util_bytes2num(keyA, KEY_LENGTH);
}
if(microel_1k_keys[i].b == 0x000000000000) {
microel_1k_keys[i].b = nfc_util_bytes2num(keyB, KEY_LENGTH);
}
}
MfClassicDeviceKeys keys = {};
for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
nfc_util_num2bytes(microel_1k_keys[i].a, sizeof(MfClassicKey), keys.key_a[i].data);
FURI_BIT_SET(keys.key_a_mask, i);
nfc_util_num2bytes(microel_1k_keys[i].b, sizeof(MfClassicKey), keys.key_b[i].data);
FURI_BIT_SET(keys.key_b_mask, i);
}
error = mf_classic_poller_sync_read(nfc, &keys, data);
if(error == MfClassicErrorNotPresent) {
FURI_LOG_W(TAG, "Failed to read data");
break;
}
nfc_device_set_data(device, NfcProtocolMfClassic, data);
is_read = (error == MfClassicErrorNone);
} while(false);
mf_classic_free(data);
return is_read;
}
static bool microel_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device);
furi_assert(parsed_data);
const MfClassicData* data = nfc_device_get_data(device, NfcProtocolMfClassic);
bool parsed = false;
do {
//Get UID
size_t uid_len;
const uint8_t* uid = mf_classic_get_uid(data, &uid_len);
if(uid_len != UID_LENGTH) break;
// Generate key from uid
uint8_t keyA[KEY_LENGTH];
generateKeyA(uid, UID_LENGTH, keyA);
// Verify key
MfClassicSectorTrailer* sec_tr =
mf_classic_get_sector_trailer_by_sector(data, verify_sector);
uint64_t key = nfc_util_bytes2num(sec_tr->key_a.data, 6);
uint64_t key_for_check_from_array = nfc_util_bytes2num(keyA, KEY_LENGTH);
if(key != key_for_check_from_array) break;
//Get credit in block number 8
const uint8_t* temp_ptr = data->block[4].data;
uint16_t balance = (temp_ptr[6] << 8) | (temp_ptr[5]);
uint16_t previus_balance = (data->block[5].data[6] << 8) | (data->block[5].data[5]);
furi_string_cat_printf(parsed_data, "\e#Microel Card\n");
furi_string_cat_printf(parsed_data, "UID:");
for(size_t i = 0; i < UID_LENGTH; i++) {
furi_string_cat_printf(parsed_data, " %02X", uid[i]);
}
furi_string_cat_printf(
parsed_data, "\nCurrent Credit: %d.%02d E \n", balance / 100, balance % 100);
furi_string_cat_printf(
parsed_data,
"Previus Credit: %d.%02d E \n",
previus_balance / 100,
previus_balance % 100);
parsed = true;
} while(false);
return parsed;
}
/* Actual implementation of app<>plugin interface */
static const NfcSupportedCardsPlugin microel_plugin = {
.protocol = NfcProtocolMfClassic,
.verify =
NULL, // the verification I need is based on verifying the keys generated via uid and try to authenticate not like on mizip that there is default b0 but added verify in read function
.read = microel_read,
.parse = microel_parse,
};
/* Plugin descriptor to comply with basic plugin specification */
static const FlipperAppPluginDescriptor microel_plugin_descriptor = {
.appid = NFC_SUPPORTED_CARD_PLUGIN_APP_ID,
.ep_api_version = NFC_SUPPORTED_CARD_PLUGIN_API_VERSION,
.entry_point = &microel_plugin,
};
/* Plugin entry point - must return a pointer to const descriptor */
const FlipperAppPluginDescriptor* microel_plugin_ep() {
return &microel_plugin_descriptor;
}

7
applications/main/nfc/scenes/nfc_scene_exit_confirm.c
View File

@@ -31,6 +31,13 @@ bool nfc_scene_exit_confirm_on_event(void* context, SceneManagerEvent event) {
if(scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneSelectProtocol)) {
consumed = scene_manager_search_and_switch_to_previous_scene(
nfc->scene_manager, NfcSceneSelectProtocol);
} else if(
scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneMfClassicDictAttack) &&
(scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneReadMenu) ||
scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneSavedMenu))) {
const uint32_t possible_scenes[] = {NfcSceneReadMenu, NfcSceneSavedMenu};
consumed = scene_manager_search_and_switch_to_previous_scene_one_of(
nfc->scene_manager, possible_scenes, COUNT_OF(possible_scenes));
} else {
consumed = scene_manager_search_and_switch_to_previous_scene(
nfc->scene_manager, NfcSceneStart);

6
applications/main/nfc/scenes/nfc_scene_retry_confirm.c
View File

@@ -31,8 +31,10 @@ bool nfc_scene_retry_confirm_on_event(void* context, SceneManagerEvent event) {
if(scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneSlixUnlock)) {
consumed = scene_manager_search_and_switch_to_previous_scene(
nfc->scene_manager, NfcSceneSlixUnlock);
} else if(scene_manager_has_previous_scene(
nfc->scene_manager, NfcSceneMfClassicDictAttack)) {
} else if(
scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneMfClassicDictAttack) &&
(scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneReadMenu) ||
scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneSavedMenu))) {
consumed = scene_manager_search_and_switch_to_previous_scene(
nfc->scene_manager, NfcSceneMfClassicDictAttack);
} else if(scene_manager_has_previous_scene(

23
applications/main/nfc/scenes/nfc_scene_set_type.c
View File

@@ -32,20 +32,10 @@ void nfc_scene_set_type_on_enter(void* context) {
nfc_protocol_support_common_submenu_callback,
instance);
FuriString* str = furi_string_alloc();
for(size_t i = 0; i < NfcDataGeneratorTypeNum; i++) {
furi_string_cat_str(str, nfc_data_generator_get_name(i));
furi_string_replace_str(str, "Mifare", "MIFARE");
submenu_add_item(
submenu,
furi_string_get_cstr(str),
i,
nfc_protocol_support_common_submenu_callback,
instance);
furi_string_reset(str);
const char* name = nfc_data_generator_get_name(i);
submenu_add_item(submenu, name, i, nfc_protocol_support_common_submenu_callback, instance);
}
furi_string_free(str);
view_dispatcher_switch_to_view(instance->view_dispatcher, NfcViewMenu);
}
@@ -63,15 +53,6 @@ bool nfc_scene_set_type_on_event(void* context, SceneManagerEvent event) {
nfc_scene_set_type_init_edit_data(instance->iso14443_3a_edit_data, 4);
scene_manager_next_scene(instance->scene_manager, NfcSceneSetSak);
consumed = true;
} else if(
(event.event == NfcDataGeneratorTypeMfClassic1k_4b) ||
(event.event == NfcDataGeneratorTypeMfClassic1k_7b) ||
(event.event == NfcDataGeneratorTypeMfClassic4k_4b) ||
(event.event == NfcDataGeneratorTypeMfClassic4k_7b) ||
(event.event == NfcDataGeneratorTypeMfClassicMini)) {
nfc_data_generator_fill_data(event.event, instance->nfc_device);
scene_manager_next_scene(instance->scene_manager, NfcSceneSetUid);
consumed = true;
} else {
nfc_data_generator_fill_data(event.event, instance->nfc_device);
scene_manager_set_scene_state(

26
applications/main/nfc/scenes/nfc_scene_set_uid.c
View File

@@ -2,29 +2,6 @@
#include "../helpers/protocol_support/nfc_protocol_support_gui_common.h"
// Sync UID from #UID to block 0 data
void mfclassic_sync_uid(NfcDevice* instance) {
size_t uid_len;
const uint8_t* uid = nfc_device_get_uid(instance, &uid_len);
MfClassicData* mfc_data = (MfClassicData*)nfc_device_get_data(instance, NfcProtocolMfClassic);
uint8_t* block = mfc_data->block[0].data;
// Sync UID
for(uint8_t i = 0; i < (uint8_t)uid_len; i++) {
block[i] = uid[i];
}
if(uid_len == 4) {
// Calculate BCC
block[uid_len] = 0;
for(uint8_t i = 0; i < (uint8_t)uid_len; i++) {
block[uid_len] ^= block[i];
}
}
}
static void nfc_scene_set_uid_byte_input_changed_callback(void* context) {
NfcApp* instance = context;
// Retrieve previously saved UID length
@@ -72,9 +49,6 @@ bool nfc_scene_set_uid_on_event(void* context, SceneManagerEvent event) {
instance->scene_manager, NfcSceneReadMenu);
consumed = true;
} else {
if(nfc_device_get_protocol(instance->nfc_device) == NfcProtocolMfClassic)
mfclassic_sync_uid(instance->nfc_device);
scene_manager_next_scene(instance->scene_manager, NfcSceneSaveName);
consumed = true;
}