[FL-1396] Mifare Classic read (#1034)

* rfal: add new data exchange function
* core: add FURI_BIT to common defines
* furi_hal_nfc: add data exchange with custom patiry bits
* lib: extend nfc common API
* assets: add mf classic dictionary
* lib: introduce mifare classic library
* nfc: add dictionary reader helper
* nfc worker: add worker events, add mifare classic read
* nfc: rework scenes with worker events
* nfc: add read mifare classic GUI
* nfc device: add mifare classic save
* nfc: add dictionary open fail scene
* nfc: mention resources
* stream: fix stream read line
* subghz: rework file read with fixed stream_read_line
* furi_hal_nfc: decrease communication timeout
* nfc: rework keys load from dictionary with file_stream
* nfc: add read mifare classic suggestion
* nfc: fix mifare classic read view
* nfc: fix index size
* nfc: add switch to no dictionary found scene
* nfc: add mifare classic load
* nfc: improve read mifare classic design
* mifare_classic: add proxmark3 mention
* nfc: format sources
* nfc: fix typos, add documentation

applications/nfc/helpers/nfc_custom_event.h

@@ -8,4 +8,5 @@ enum NfcCustomEvent {
     NfcCustomEventWorkerExit,
     NfcCustomEventByteInputDone,
     NfcCustomEventTextInputDone,
+    NfcCustomEventDictAttackDone,
 };

applications/nfc/helpers/nfc_mf_classic_dict.c

@@ -0,0 +1,53 @@
+#include "nfc_mf_classic_dict.h"
+
+#include <flipper_format/flipper_format.h>
+#include <lib/toolbox/args.h>
+
+#define NFC_MF_CLASSIC_DICT_PATH "/ext/nfc/assets/mf_classic_dict.nfc"
+
+#define NFC_MF_CLASSIC_KEY_LEN (13)
+
+bool nfc_mf_classic_dict_check_presence(Storage* storage) {
+    furi_assert(storage);
+    return storage_common_stat(storage, NFC_MF_CLASSIC_DICT_PATH, NULL) == FSE_OK;
+}
+
+bool nfc_mf_classic_dict_open_file(Stream* stream) {
+    furi_assert(stream);
+    return file_stream_open(stream, NFC_MF_CLASSIC_DICT_PATH, FSAM_READ, FSOM_OPEN_EXISTING);
+}
+
+void nfc_mf_classic_dict_close_file(Stream* stream) {
+    furi_assert(stream);
+    file_stream_close(stream);
+}
+
+bool nfc_mf_classic_dict_get_next_key(Stream* stream, uint64_t* key) {
+    furi_assert(stream);
+    furi_assert(key);
+    uint8_t key_byte_tmp = 0;
+    string_t next_line;
+    string_init(next_line);
+    *key = 0;
+
+    bool next_key_read = false;
+    while(!next_key_read) {
+        if(stream_read_line(stream, next_line)) break;
+        if(string_get_char(next_line, 0) == '#') continue;
+        if(string_size(next_line) != NFC_MF_CLASSIC_KEY_LEN) continue;
+        for(uint8_t i = 0; i < 12; i += 2) {
+            args_char_to_hex(
+                string_get_char(next_line, i), string_get_char(next_line, i + 1), &key_byte_tmp);
+            *key |= (uint64_t)key_byte_tmp << 8 * (5 - i / 2);
+        }
+        next_key_read = true;
+    }
+
+    string_clear(next_line);
+    return next_key_read;
+}
+
+void nfc_mf_classic_dict_reset(Stream* stream) {
+    furi_assert(stream);
+    stream_rewind(stream);
+}

applications/nfc/helpers/nfc_mf_classic_dict.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdbool.h>
+#include <storage/storage.h>
+#include <lib/toolbox/stream/file_stream.h>
+
+bool nfc_mf_classic_dict_check_presence(Storage* storage);
+
+bool nfc_mf_classic_dict_open_file(Stream* stream);
+
+void nfc_mf_classic_dict_close_file(Stream* stream);
+
+bool nfc_mf_classic_dict_get_next_key(Stream* stream, uint64_t* key);
+
+void nfc_mf_classic_dict_reset(Stream* stream);