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Code Issues Activity

Added NFC plugin; Some parser (#3335)

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* Add parser
* Fix microel.c
* Fix NFC parser positive return
* fix mizip
* Fix NFC parser positive return
* Add parse to hi! tag
* fix false positive reading and kdf
* hi formatting
* fix oom in kdf
* nfc app: fix types in hi plugin
* nfc app: fix return in function body in microel plugin

Co-authored-by: gornekich <n.gorbadey@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Alessandro Rossi
2024-02-09 09:16:14 +01:00
committed by GitHub
parent 6bc63b7734
commit ebd09a1981
4 changed files with 738 additions and 0 deletions
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257
applications/main/nfc/plugins/supported_cards/mizip.c Normal file
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#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 "MiZIP"
#define KEY_LENGTH 6
#define MIZIP_KEY_TO_GEN 5
#define UID_LENGTH 4
typedef struct {
uint64_t a;
uint64_t b;
} MfClassicKeyPair;
typedef struct {
MfClassicKeyPair* keys;
uint32_t verify_sector;
} MizipCardConfig;
static MfClassicKeyPair mizip_1k_keys[] = {
{.a = 0xa0a1a2a3a4a5, .b = 0xb4c132439eef}, // 000
{.a = 0x000000000000, .b = 0x000000000000}, // 001
{.a = 0x000000000000, .b = 0x000000000000}, // 002
{.a = 0x000000000000, .b = 0x000000000000}, // 003
{.a = 0x000000000000, .b = 0x000000000000}, // 004
{.a = 0x0222179AB995, .b = 0x13321774F9B5}, // 005
{.a = 0xB25CBD76A7B4, .b = 0x7571359B4274}, // 006
{.a = 0xDA857B4907CC, .b = 0xD26B856175F7}, // 007
{.a = 0x16D85830C443, .b = 0x8F790871A21E}, // 008
{.a = 0x88BD5098FC82, .b = 0xFCD0D77745E4}, // 009
{.a = 0x983349449D78, .b = 0xEA2631FBDEDD}, // 010
{.a = 0xC599F962F3D9, .b = 0x949B70C14845}, // 011
{.a = 0x72E668846BE8, .b = 0x45490B5AD707}, // 012
{.a = 0xBCA105E5685E, .b = 0x248DAF9D674D}, // 013
{.a = 0x4F6FE072D1FD, .b = 0x4250A05575FA}, // 014
{.a = 0x56438ABE8152, .b = 0x59A45912B311}, // 015
};
static MfClassicKeyPair mizip_mini_keys[] = {
{.a = 0xa0a1a2a3a4a5, .b = 0xb4c132439eef}, // 000
{.a = 0x000000000000, .b = 0x000000000000}, // 001
{.a = 0x000000000000, .b = 0x000000000000}, // 002
{.a = 0x000000000000, .b = 0x000000000000}, // 003
{.a = 0x000000000000, .b = 0x000000000000}, // 004
};
//KDF
void mizip_generate_key(uint8_t* uid, uint8_t keyA[5][KEY_LENGTH], uint8_t keyB[5][KEY_LENGTH]) {
// Static XOR table for key generation
static const uint8_t xor_table_keyA[4][6] = {
{0x09, 0x12, 0x5A, 0x25, 0x89, 0xE5},
{0xAB, 0x75, 0xC9, 0x37, 0x92, 0x2F},
{0xE2, 0x72, 0x41, 0xAF, 0x2C, 0x09},
{0x31, 0x7A, 0xB7, 0x2F, 0x44, 0x90}};
static const uint8_t xor_table_keyB[4][6] = {
{0xF1, 0x2C, 0x84, 0x53, 0xD8, 0x21},
{0x73, 0xE7, 0x99, 0xFE, 0x32, 0x41},
{0xAA, 0x4D, 0x13, 0x76, 0x56, 0xAE},
{0xB0, 0x13, 0x27, 0x27, 0x2D, 0xFD}};
// Permutation table for rearranging elements in uid
static const uint8_t xorOrderA[6] = {0, 1, 2, 3, 0, 1};
static const uint8_t xorOrderB[6] = {2, 3, 0, 1, 2, 3};
// Generate key based on uid and XOR table
for(uint8_t j = 1; j < 5; j++) {
for(uint8_t i = 0; i < 6; i++) {
keyA[j][i] = uid[xorOrderA[i]] ^ xor_table_keyA[j - 1][i];
keyB[j][i] = uid[xorOrderB[i]] ^ xor_table_keyB[j - 1][i];
}
}
}
static bool mizip_get_card_config(MizipCardConfig* config, MfClassicType type) {
bool success = true;
if(type == MfClassicType1k) {
config->verify_sector = 0;
config->keys = mizip_1k_keys;
} else if(type == MfClassicTypeMini) {
config->verify_sector = 0;
config->keys = mizip_mini_keys;
} else {
success = false;
}
return success;
}
static bool mizip_verify_type(Nfc* nfc, MfClassicType type) {
bool verified = false;
do {
MizipCardConfig cfg = {};
if(!mizip_get_card_config(&cfg, type)) break;
const uint8_t block_num = mf_classic_get_first_block_num_of_sector(cfg.verify_sector);
FURI_LOG_D(TAG, "Verifying sector %li", cfg.verify_sector);
MfClassicKey key = {0};
nfc_util_num2bytes(cfg.keys[cfg.verify_sector].b, COUNT_OF(key.data), key.data);
MfClassicAuthContext auth_context;
MfClassicError error =
mf_classic_poller_sync_auth(nfc, block_num, &key, MfClassicKeyTypeB, &auth_context);
if(error != MfClassicErrorNone) {
FURI_LOG_D(
TAG, "Failed to read block %u: %d, this is not a MiZIP card", block_num, error);
break;
}
FURI_LOG_D(TAG, "Found a MiZIP Card");
verified = true;
} while(false);
return verified;
}
static bool mizip_verify(Nfc* nfc) {
return mizip_verify_type(nfc, MfClassicType1k) || mizip_verify_type(nfc, MfClassicTypeMini);
}
static bool mizip_read(Nfc* nfc, NfcDevice* device) {
FURI_LOG_D(TAG, "Entering MiZIP 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 = MfClassicTypeMini;
MfClassicError error = mf_classic_poller_sync_detect_type(nfc, &type);
if(error != MfClassicErrorNone) break;
//temp fix but fix mf_classic_poller_sync_detect_type because view type mfclassic1k and not verify mfmini
data->type = MfClassicTypeMini;
MizipCardConfig cfg = {};
if(!mizip_get_card_config(&cfg, data->type)) break;
uint8_t uid[UID_LENGTH];
memcpy(uid, data->iso14443_3a_data->uid, UID_LENGTH);
uint8_t keyA[MIZIP_KEY_TO_GEN][KEY_LENGTH];
uint8_t keyB[MIZIP_KEY_TO_GEN][KEY_LENGTH];
mizip_generate_key(uid, keyA, keyB);
for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
if(cfg.keys[i].a == 0x000000000000 && cfg.keys[i].b == 0x000000000000) {
cfg.keys[i].a = nfc_util_bytes2num(keyA[i], KEY_LENGTH);
cfg.keys[i].b = nfc_util_bytes2num(keyB[i], KEY_LENGTH);
}
}
MfClassicDeviceKeys keys = {};
for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
nfc_util_num2bytes(cfg.keys[i].a, sizeof(MfClassicKey), keys.key_a[i].data);
FURI_BIT_SET(keys.key_a_mask, i);
nfc_util_num2bytes(cfg.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 != MfClassicErrorNone) {
FURI_LOG_W(TAG, "Failed to read data");
break;
}
nfc_device_set_data(device, NfcProtocolMfClassic, data);
is_read = mf_classic_is_card_read(data);
} while(false);
mf_classic_free(data);
return is_read;
}
static bool mizip_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 {
// Verify card type
MizipCardConfig cfg = {};
if(!mizip_get_card_config(&cfg, data->type)) break;
// Verify key
MfClassicSectorTrailer* sec_tr =
mf_classic_get_sector_trailer_by_sector(data, cfg.verify_sector);
uint64_t key = nfc_util_bytes2num(sec_tr->key_b.data, 6);
if(key != cfg.keys[cfg.verify_sector].b) return false;
//Get UID
uint8_t uid[UID_LENGTH];
memcpy(uid, data->iso14443_3a_data->uid, UID_LENGTH);
//Get credit
uint8_t credit_pointer = 0x08;
uint8_t previus_credit_pointer = 0x09;
if(data->block[10].data[0] == 0x55) {
credit_pointer = 0x09;
previus_credit_pointer = 0x08;
}
uint16_t balance = (data->block[credit_pointer].data[2] << 8) |
(data->block[credit_pointer].data[1]);
uint16_t previus_balance = (data->block[previus_credit_pointer].data[2] << 8) |
(data->block[previus_credit_pointer].data[1]);
//parse data
furi_string_cat_printf(parsed_data, "\e#MiZIP 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 mizip_plugin = {
.protocol = NfcProtocolMfClassic,
.verify = mizip_verify,
.read = mizip_read,
.parse = mizip_parse,
};
/* Plugin descriptor to comply with basic plugin specification */
static const FlipperAppPluginDescriptor mizip_plugin_descriptor = {
.appid = NFC_SUPPORTED_CARD_PLUGIN_APP_ID,
.ep_api_version = NFC_SUPPORTED_CARD_PLUGIN_API_VERSION,
.entry_point = &mizip_plugin,
};
/* Plugin entry point - must return a pointer to const descriptor */
const FlipperAppPluginDescriptor* mizip_plugin_ep() {
return &mizip_plugin_descriptor;
}