flipperzero-firmware/lib/nfc/parsers/troika_parser.c
Sergey Gavrilov 4bf29827f8
M*LIB: non-inlined strings, FuriString primitive (#1795)
* Quicksave 1
* Header stage complete
* Source stage complete
* Lint & merge fixes
* Includes
* Documentation step 1
* FBT: output free size considering BT STACK
* Documentation step 2
* py lint
* Fix music player plugin
* unit test stage 1: string allocator, mem, getters, setters, appends, compare, search.
* unit test: string equality
* unit test: string replace
* unit test: string start_with, end_with
* unit test: string trim
* unit test: utf-8
* Rename
* Revert fw_size changes
* Simplify CLI backspace handling
* Simplify CLI character insert
* Merge fixes
* Furi: correct filenaming and spelling
* Bt: remove furi string include

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2022-10-06 00:15:23 +09:00

88 lines
3.4 KiB
C

#include "nfc_supported_card.h"
#include <gui/modules/widget.h>
#include <nfc_worker_i.h>
static const MfClassicAuthContext troika_keys[] = {
{.sector = 0, .key_a = 0xa0a1a2a3a4a5, .key_b = 0xfbf225dc5d58},
{.sector = 1, .key_a = 0xa82607b01c0d, .key_b = 0x2910989b6880},
{.sector = 2, .key_a = 0x2aa05ed1856f, .key_b = 0xeaac88e5dc99},
{.sector = 3, .key_a = 0x2aa05ed1856f, .key_b = 0xeaac88e5dc99},
{.sector = 4, .key_a = 0x73068f118c13, .key_b = 0x2b7f3253fac5},
{.sector = 5, .key_a = 0xfbc2793d540b, .key_b = 0xd3a297dc2698},
{.sector = 6, .key_a = 0x2aa05ed1856f, .key_b = 0xeaac88e5dc99},
{.sector = 7, .key_a = 0xae3d65a3dad4, .key_b = 0x0f1c63013dba},
{.sector = 8, .key_a = 0xa73f5dc1d333, .key_b = 0xe35173494a81},
{.sector = 9, .key_a = 0x69a32f1c2f19, .key_b = 0x6b8bd9860763},
{.sector = 10, .key_a = 0x9becdf3d9273, .key_b = 0xf8493407799d},
{.sector = 11, .key_a = 0x08b386463229, .key_b = 0x5efbaecef46b},
{.sector = 12, .key_a = 0xcd4c61c26e3d, .key_b = 0x31c7610de3b0},
{.sector = 13, .key_a = 0xa82607b01c0d, .key_b = 0x2910989b6880},
{.sector = 14, .key_a = 0x0e8f64340ba4, .key_b = 0x4acec1205d75},
{.sector = 15, .key_a = 0x2aa05ed1856f, .key_b = 0xeaac88e5dc99},
};
bool troika_parser_verify(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
furi_assert(nfc_worker);
UNUSED(nfc_worker);
if(nfc_worker->dev_data->mf_classic_data.type != MfClassicType1k) {
return false;
}
uint8_t sector = 11;
uint8_t block = mf_classic_get_sector_trailer_block_num_by_sector(sector);
FURI_LOG_D("Troika", "Verifying sector %d", sector);
if(mf_classic_authenticate(tx_rx, block, 0x08b386463229, MfClassicKeyA)) {
FURI_LOG_D("Troika", "Sector %d verified", sector);
return true;
}
return false;
}
bool troika_parser_read(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
furi_assert(nfc_worker);
MfClassicReader reader = {};
FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
reader.type = mf_classic_get_classic_type(nfc_data->atqa[0], nfc_data->atqa[1], nfc_data->sak);
for(size_t i = 0; i < COUNT_OF(troika_keys); i++) {
mf_classic_reader_add_sector(
&reader, troika_keys[i].sector, troika_keys[i].key_a, troika_keys[i].key_b);
}
return mf_classic_read_card(tx_rx, &reader, &nfc_worker->dev_data->mf_classic_data) == 16;
}
bool troika_parser_parse(NfcDeviceData* dev_data) {
MfClassicData* data = &dev_data->mf_classic_data;
bool troika_parsed = false;
do {
// Verify key
MfClassicSectorTrailer* sec_tr = mf_classic_get_sector_trailer_by_sector(data, 8);
uint64_t key = nfc_util_bytes2num(sec_tr->key_a, 6);
if(key != troika_keys[8].key_a) break;
// Verify card type
if(data->type != MfClassicType1k) break;
// Parse data
uint8_t* temp_ptr = &data->block[8 * 4 + 1].value[5];
uint16_t balance = ((temp_ptr[0] << 8) | temp_ptr[1]) / 25;
temp_ptr = &data->block[8 * 4].value[3];
uint32_t number = 0;
for(size_t i = 0; i < 4; i++) {
number <<= 8;
number |= temp_ptr[i];
}
number >>= 4;
furi_string_printf(
dev_data->parsed_data, "\e#Troika\nNum: %ld\nBalance: %d rur.", number, balance);
troika_parsed = true;
} while(false);
return troika_parsed;
}