Added Mizip & Microel support + parser to NFC

applications/main/nfc/application.fam

@@ -146,6 +146,24 @@ App(
     sources=["plugins/supported_cards/sonicare.c"],
 )
 
+App(
+    appid="mizip_parser",
+    apptype=FlipperAppType.PLUGIN,
+    entry_point="mizip_plugin_ep",
+    targets=["f7"],
+    requires=["nfc"],
+    sources=["plugins/supported_cards/mizip.c"],
+)
+
+App(
+    appid="microel_parser",
+    apptype=FlipperAppType.PLUGIN,
+    entry_point="microel_plugin_ep",
+    targets=["f7"],
+    requires=["nfc"],
+    sources=["plugins/supported_cards/microel.c"],
+)
+
 App(
     appid="nfc_start",
     targets=["f7"],

applications/main/nfc/plugins/supported_cards/microel.c

@@ -0,0 +1,251 @@
+#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 calcolaSommaHex(const uint8_t* uid, size_t uidSize, uint8_t sommaHex[]) {
+    const uint8_t xorKey[] = {0x01, 0x92, 0xA7, 0x75, 0x2B, 0xF9};
+    int somma = 0;
+
+    for(size_t i = 0; i < uidSize; i++) {
+        somma += uid[i];
+    }
+
+    int sommaDueNumeri = somma % 256;
+
+    for(size_t i = 0; i < sizeof(xorKey); i++) {
+        sommaHex[i] = sommaDueNumeri ^ xorKey[i];
+    }
+}
+
+void generateKeyA(const uint8_t* uid, uint8_t uidSize, uint8_t keyA[]) {
+    uint8_t sommaHex[6];
+    calcolaSommaHex(uid, uidSize, sommaHex);
+    uint8_t primoCarattere = (sommaHex[0] >> 4) & 0xF;
+
+    if(primoCarattere == 0x2 || primoCarattere == 0x3 || primoCarattere == 0xA ||
+       primoCarattere == 0xB) {
+        // XOR WITH 0x40
+        for(size_t i = 0; i < sizeof(sommaHex); i++) {
+            keyA[i] = 0x40 ^ sommaHex[i];
+        }
+    } else if(
+        primoCarattere == 0x6 || primoCarattere == 0x7 || primoCarattere == 0xE ||
+        primoCarattere == 0xF) {
+        // XOR WITH 0xC0
+        for(size_t i = 0; i < sizeof(sommaHex); i++) {
+            keyA[i] = 0xC0 ^ sommaHex[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_verify(Nfc* nfc) {
+    furi_assert(nfc);
+
+    bool verified = false;
+
+    do {
+        uint8_t block_num = mf_classic_get_first_block_num_of_sector(verify_sector);
+        FURI_LOG_D(TAG, "Verifying sector %u", verify_sector);
+
+        uint8_t uid[UID_LENGTH] = {0xd4, 0x23, 0xb7, 0x34};
+
+        size_t uid_len;
+        const uint8_t* uidn = mf_classic_get_uid(data, &uid_len);
+        FURI_LOG_D(TAG, "Microel provadiocane: UID identified: %02X%02X%02X%02X", uidn[0], uidn[1], uidn[2], uidn[3]);
+        if(uid_len != UID_LENGTH) break;
+        size_t uid_len = 0;
+        const uint8_t* originalUid = mf_classic_get_uid(data, &uid_len);
+        uint8_t uid[UID_LENGTH];  // Sostituisci UID_LENGTH con la lunghezza effettiva dell'UID
+        memcpy(uid, originalUid, UID_LENGTH);
+        FURI_LOG_D(TAG, "UID: %02X %02X %02X %02X", uid[0],uid[1],uid[2],uid[3]);
+        FURI_LOG_D(TAG, "UID GET: %02X %02X %02X %02X", originalUid[0],originalUid[1],originalUid[2],originalUid[3]);
+        //memcpy(uid, data->iso14443_3a_data->uid, UID_LENGTH);
+
+        // Generate key from uid
+        uint8_t keyA[KEY_LENGTH];
+        generateKeyA(uid, UID_LENGTH, keyA);
+
+        MfClassicKey key = {};
+        memcpy(key.data, keyA, KEY_LENGTH);
+
+        MfClassicAuthContext auth_ctx = {};
+        MfClassicError error =
+            mf_classic_poller_sync_auth(nfc, block_num, &key, MfClassicKeyTypeA, &auth_ctx);
+        if(error != MfClassicErrorNone) {
+            verified = false;
+            FURI_LOG_D(TAG, "Failed to read block %u: %d", block_num, error);
+            break;
+        }
+
+        verified = true;
+    } while(false);
+
+    return verified;
+}*/
+
+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;
+
+        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;
+
+        uint8_t keyA[KEY_LENGTH];
+        uint8_t keyB[KEY_LENGTH];
+        generateKeyA(uid, UID_LENGTH, keyA);
+        generateKeyB(keyA, KEY_LENGTH, keyB);
+
+        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 != MfClassicErrorNone) {
+            FURI_LOG_W(TAG, "Failed to read data");
+            break;
+        }
+
+        nfc_device_set_data(device, NfcProtocolMfClassic, data);
+
+        is_read = true;
+    } 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
+    .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;
+}