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Willy-JL
2023-12-13 01:33:08 +00:00
parent de2a5d77cf
commit 4c6eb896ed
2 changed files with 45 additions and 34 deletions
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76
applications/main/nfc/plugins/supported_cards/microel.c
View File

@@ -35,43 +35,46 @@ static MfClassicKeyPair microel_1k_keys[] = {
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;
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];
}
for(size_t i = 0; i < uidSize; i++) {
somma += uid[i];
}
int sommaDueNumeri = somma % 256;
int sommaDueNumeri = somma % 256;
for (size_t i = 0; i < sizeof(xorKey); i++) {
sommaHex[i] = sommaDueNumeri ^ xorKey[i];
}
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;
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];
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];
}
}
} 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];
}
for(size_t i = 0; i < keyASize; i++) {
keyB[i] = 0xFF ^ keyA[i];
}
}
/*static bool microel_verify(Nfc* nfc) {
@@ -182,7 +185,7 @@ 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);
const MfClassicData* data = nfc_device_get_data(device, NfcProtocolMfClassic);
bool parsed = false;
@@ -197,7 +200,8 @@ static bool microel_parse(const NfcDevice* device, FuriString* parsed_data) {
generateKeyA(uid, UID_LENGTH, keyA);
// Verify key
MfClassicSectorTrailer* sec_tr = mf_classic_get_sector_trailer_by_sector(data, verify_sector);
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) return false;
@@ -211,9 +215,14 @@ static bool microel_parse(const NfcDevice* device, FuriString* parsed_data) {
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);
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);
@@ -223,7 +232,8 @@ static bool microel_parse(const NfcDevice* device, FuriString* parsed_data) {
/* 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
.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,
};

3
applications/main/nfc/plugins/supported_cards/mizip.c
View File

@@ -67,7 +67,8 @@ static bool mizip_verify(Nfc* nfc) {
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);
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");