Merge remote-tracking branch 'OFW/dev' into dev

applications/main/nfc/helpers/felica_auth.c

@@ -0,0 +1,21 @@
+#include "felica_auth.h"
+
+FelicaAuthenticationContext* felica_auth_alloc() {
+    FelicaAuthenticationContext* instance = malloc(sizeof(FelicaAuthenticationContext));
+    memset(instance->card_key.data, 0, FELICA_DATA_BLOCK_SIZE);
+    instance->skip_auth = true;
+    return instance;
+}
+
+void felica_auth_free(FelicaAuthenticationContext* instance) {
+    furi_assert(instance);
+    free(instance);
+}
+
+void felica_auth_reset(FelicaAuthenticationContext* instance) {
+    furi_assert(instance);
+    memset(instance->card_key.data, 0, FELICA_DATA_BLOCK_SIZE);
+    instance->skip_auth = true;
+    instance->auth_status.external = 0;
+    instance->auth_status.internal = 0;
+}

applications/main/nfc/helpers/felica_auth.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <lib/nfc/protocols/felica/felica.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+FelicaAuthenticationContext* felica_auth_alloc();
+
+void felica_auth_free(FelicaAuthenticationContext* instance);
+
+void felica_auth_reset(FelicaAuthenticationContext* instance);
+
+#ifdef __cplusplus
+}
+#endif

applications/main/nfc/helpers/protocol_support/felica/felica.c

@@ -7,6 +7,11 @@
 
 #include "../nfc_protocol_support_common.h"
 #include "../nfc_protocol_support_gui_common.h"
+#include "../nfc_protocol_support_unlock_helper.h"
+
+enum {
+    SubmenuIndexUnlock = SubmenuIndexCommonMax,
+};
 
 static void nfc_scene_info_on_enter_felica(NfcApp* instance) {
     const NfcDevice* device = instance->nfc_device;
@@ -18,6 +23,35 @@ static void nfc_scene_info_on_enter_felica(NfcApp* instance) {
         temp_str, "\e#%s\n", nfc_device_get_name(device, NfcDeviceNameTypeFull));
     nfc_render_felica_info(data, NfcProtocolFormatTypeFull, temp_str);
 
+    widget_add_text_scroll_element(
+        instance->widget, 0, 0, 128, 48, furi_string_get_cstr(temp_str));
+
+    widget_add_button_element(
+        instance->widget,
+        GuiButtonTypeRight,
+        "More",
+        nfc_protocol_support_common_widget_callback,
+        instance);
+    furi_string_free(temp_str);
+}
+
+static bool nfc_scene_info_on_event_felica(NfcApp* instance, SceneManagerEvent event) {
+    if(event.type == SceneManagerEventTypeCustom && event.event == GuiButtonTypeRight) {
+        scene_manager_next_scene(instance->scene_manager, NfcSceneMoreInfo);
+        return true;
+    }
+
+    return false;
+}
+
+static void nfc_scene_more_info_on_enter_felica(NfcApp* instance) {
+    const NfcDevice* device = instance->nfc_device;
+    const FelicaData* data = nfc_device_get_data(device, NfcProtocolFelica);
+
+    FuriString* temp_str = furi_string_alloc();
+
+    nfc_render_felica_dump(data, temp_str);
+
     widget_add_text_scroll_element(
         instance->widget, 0, 0, 128, 64, furi_string_get_cstr(temp_str));
 
@@ -29,29 +63,75 @@ static NfcCommand nfc_scene_read_poller_callback_felica(NfcGenericEvent event, v
 
     NfcApp* instance = context;
     const FelicaPollerEvent* felica_event = event.event_data;
+    NfcCommand command = NfcCommandContinue;
 
     if(felica_event->type == FelicaPollerEventTypeReady) {
         nfc_device_set_data(
             instance->nfc_device, NfcProtocolFelica, nfc_poller_get_data(instance->poller));
         view_dispatcher_send_custom_event(instance->view_dispatcher, NfcCustomEventPollerSuccess);
-        return NfcCommandStop;
+        command = NfcCommandStop;
+    } else if(
+        felica_event->type == FelicaPollerEventTypeError ||
+        felica_event->type == FelicaPollerEventTypeIncomplete) {
+        nfc_device_set_data(
+            instance->nfc_device, NfcProtocolFelica, nfc_poller_get_data(instance->poller));
+        view_dispatcher_send_custom_event(
+            instance->view_dispatcher, NfcCustomEventPollerIncomplete);
+        command = NfcCommandStop;
+    } else if(felica_event->type == FelicaPollerEventTypeRequestAuthContext) {
+        view_dispatcher_send_custom_event(instance->view_dispatcher, NfcCustomEventCardDetected);
+        FelicaAuthenticationContext* ctx = felica_event->data->auth_context;
+        ctx->skip_auth = instance->felica_auth->skip_auth;
+        memcpy(ctx->card_key.data, instance->felica_auth->card_key.data, FELICA_DATA_BLOCK_SIZE);
     }
 
-    return NfcCommandContinue;
+    return command;
 }
 
 static void nfc_scene_read_on_enter_felica(NfcApp* instance) {
+    nfc_unlock_helper_setup_from_state(instance);
     nfc_poller_start(instance->poller, nfc_scene_read_poller_callback_felica, instance);
 }
 
+bool nfc_scene_read_on_event_felica(NfcApp* instance, SceneManagerEvent event) {
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcCustomEventCardDetected) {
+            nfc_unlock_helper_card_detected_handler(instance);
+        } else if(event.event == NfcCustomEventPollerIncomplete) {
+            notification_message(instance->notifications, &sequence_semi_success);
+            scene_manager_next_scene(instance->scene_manager, NfcSceneReadSuccess);
+            dolphin_deed(DolphinDeedNfcReadSuccess);
+        }
+    }
+    return true;
+}
+
 static void nfc_scene_read_success_on_enter_felica(NfcApp* instance) {
     const NfcDevice* device = instance->nfc_device;
     const FelicaData* data = nfc_device_get_data(device, NfcProtocolFelica);
 
     FuriString* temp_str = furi_string_alloc();
-    furi_string_cat_printf(
-        temp_str, "\e#%s\n", nfc_device_get_name(device, NfcDeviceNameTypeFull));
-    nfc_render_felica_info(data, NfcProtocolFormatTypeShort, temp_str);
+
+    if(!scene_manager_has_previous_scene(instance->scene_manager, NfcSceneFelicaUnlockWarn)) {
+        furi_string_cat_printf(
+            temp_str, "\e#%s\n", nfc_device_get_name(device, NfcDeviceNameTypeFull));
+        nfc_render_felica_info(data, NfcProtocolFormatTypeShort, temp_str);
+    } else {
+        bool all_unlocked = data->blocks_read == data->blocks_total;
+        furi_string_cat_printf(
+            temp_str,
+            "\e#%s\n",
+            all_unlocked ? "All Blocks Are Unlocked" : "Some Blocks Are Locked");
+        nfc_render_felica_idm(data, NfcProtocolFormatTypeShort, temp_str);
+        uint8_t* ck_data = instance->felica_auth->card_key.data;
+        furi_string_cat_printf(temp_str, "Key:");
+        for(uint8_t i = 0; i < 7; i++) {
+            furi_string_cat_printf(temp_str, " %02X", ck_data[i]);
+            if(i == 6) furi_string_cat_printf(temp_str, "...");
+        }
+        nfc_render_felica_blocks_count(data, temp_str, false);
+    }
+    felica_auth_reset(instance->felica_auth);
 
     widget_add_text_scroll_element(
         instance->widget, 0, 0, 128, 52, furi_string_get_cstr(temp_str));
@@ -74,23 +154,50 @@ static void nfc_scene_emulate_on_enter_felica(NfcApp* instance) {
     nfc_listener_start(instance->listener, NULL, NULL);
 }
 
+static void nfc_scene_read_menu_on_enter_felica(NfcApp* instance) {
+    const FelicaData* data = nfc_device_get_data(instance->nfc_device, NfcProtocolFelica);
+    if(data->blocks_read != data->blocks_total) {
+        submenu_add_item(
+            instance->submenu,
+            "Unlock",
+            SubmenuIndexUnlock,
+            nfc_protocol_support_common_submenu_callback,
+            instance);
+    }
+}
+
+static bool nfc_scene_read_menu_on_event_felica(NfcApp* instance, SceneManagerEvent event) {
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == SubmenuIndexUnlock) {
+            scene_manager_next_scene(instance->scene_manager, NfcSceneFelicaKeyInput);
+            return true;
+        }
+    }
+    return false;
+}
+
 const NfcProtocolSupportBase nfc_protocol_support_felica = {
     .features = NfcProtocolFeatureEmulateUid,
 
     .scene_info =
         {
             .on_enter = nfc_scene_info_on_enter_felica,
+            .on_event = nfc_scene_info_on_event_felica,
+        },
+    .scene_more_info =
+        {
+            .on_enter = nfc_scene_more_info_on_enter_felica,
             .on_event = nfc_protocol_support_common_on_event_empty,
         },
     .scene_read =
         {
             .on_enter = nfc_scene_read_on_enter_felica,
-            .on_event = nfc_protocol_support_common_on_event_empty,
+            .on_event = nfc_scene_read_on_event_felica,
         },
     .scene_read_menu =
         {
-            .on_enter = nfc_protocol_support_common_on_enter_empty,
-            .on_event = nfc_protocol_support_common_on_event_empty,
+            .on_enter = nfc_scene_read_menu_on_enter_felica,
+            .on_event = nfc_scene_read_menu_on_event_felica,
         },
     .scene_read_success =
         {

applications/main/nfc/helpers/protocol_support/felica/felica_render.c

@@ -1,19 +1,107 @@
 #include "felica_render.h"
 
+void nfc_render_felica_blocks_count(
+    const FelicaData* data,
+    FuriString* str,
+    bool render_auth_notification) {
+    furi_string_cat_printf(str, "\nBlocks Read: %u/%u", data->blocks_read, data->blocks_total);
+    if(render_auth_notification && data->blocks_read != data->blocks_total) {
+        furi_string_cat_printf(str, "\nAuth-protected blocks!");
+    }
+}
+
+void nfc_render_felica_idm(
+    const FelicaData* data,
+    NfcProtocolFormatType format_type,
+    FuriString* str) {
+    furi_string_cat_printf(str, (format_type == NfcProtocolFormatTypeFull) ? "IDm:\n" : "IDm:");
+
+    for(size_t i = 0; i < FELICA_IDM_SIZE; i++) {
+        furi_string_cat_printf(
+            str,
+            (format_type == NfcProtocolFormatTypeFull) ? "%02X " : " %02X",
+            data->idm.data[i]);
+    }
+}
+
 void nfc_render_felica_info(
     const FelicaData* data,
     NfcProtocolFormatType format_type,
     FuriString* str) {
-    furi_string_cat_printf(str, "IDm:");
-
-    for(size_t i = 0; i < FELICA_IDM_SIZE; i++) {
-        furi_string_cat_printf(str, " %02X", data->idm.data[i]);
+    if(format_type == NfcProtocolFormatTypeFull) {
+        furi_string_cat_printf(str, "Tech: JIS X 6319-4,\nISO 18092 [NFC-F]\n");
     }
 
+    nfc_render_felica_idm(data, format_type, str);
+
     if(format_type == NfcProtocolFormatTypeFull) {
-        furi_string_cat_printf(str, "\nPMm:");
+        furi_string_cat_printf(str, "\nPMm:\n");
         for(size_t i = 0; i < FELICA_PMM_SIZE; ++i) {
-            furi_string_cat_printf(str, " %02X", data->pmm.data[i]);
+            furi_string_cat_printf(str, "%02X ", data->pmm.data[i]);
         }
     }
+    nfc_render_felica_blocks_count(data, str, true);
+}
+
+static void nfc_render_felica_block_name(
+    const char* name,
+    FuriString* str,
+    uint8_t prefix_separator_cnt,
+    uint8_t suffix_separator_cnt) {
+    for(uint8_t i = 0; i < prefix_separator_cnt; i++) {
+        furi_string_cat_printf(str, ":");
+    }
+    furi_string_cat_printf(str, "[ %s ]", name);
+    for(uint8_t i = 0; i < suffix_separator_cnt; i++) {
+        furi_string_cat_printf(str, ":");
+    }
+}
+
+static void nfc_render_felica_block_data(const FelicaBlock* block, FuriString* str) {
+    furi_string_cat_printf(str, "\nSF1=%02X; SF2=%02X\n", block->SF1, block->SF2);
+    for(size_t j = 0; j < FELICA_DATA_BLOCK_SIZE; j++) {
+        if((j != 0) && (j % 8 == 0)) furi_string_cat_printf(str, "\n");
+        furi_string_cat_printf(str, "%02X ", block->data[j]);
+    }
+    furi_string_cat_printf(str, "\n");
+}
+
+static void nfc_render_felica_block(
+    const FelicaBlock* block,
+    FuriString* str,
+    const char* name,
+    uint8_t prefix_separator_cnt,
+    uint8_t suffix_separator_cnt) {
+    nfc_render_felica_block_name(name, str, prefix_separator_cnt, suffix_separator_cnt);
+    nfc_render_felica_block_data(block, str);
+}
+
+void nfc_render_felica_dump(const FelicaData* data, FuriString* str) {
+    FuriString* name = furi_string_alloc();
+    for(size_t i = 0; i < 14; i++) {
+        furi_string_printf(name, "S_PAD%d", i);
+        uint8_t suf_cnt = 18;
+        if(i == 1) {
+            suf_cnt = 19;
+        } else if((i == 10) || (i == 12) || (i == 13)) {
+            suf_cnt = 16;
+        }
+        nfc_render_felica_block(
+            &data->data.fs.spad[i], str, furi_string_get_cstr(name), 20, suf_cnt);
+    }
+    furi_string_free(name);
+    nfc_render_felica_block(&data->data.fs.reg, str, "REG", 23, 23);
+    nfc_render_felica_block(&data->data.fs.rc, str, "RC", 25, 25);
+    nfc_render_felica_block(&data->data.fs.mac, str, "MAC", 23, 23);
+    nfc_render_felica_block(&data->data.fs.id, str, "ID", 25, 25);
+    nfc_render_felica_block(&data->data.fs.d_id, str, "D_ID", 22, 24);
+    nfc_render_felica_block(&data->data.fs.ser_c, str, "SER_C", 20, 21);
+    nfc_render_felica_block(&data->data.fs.sys_c, str, "SYS_C", 20, 21);
+    nfc_render_felica_block(&data->data.fs.ckv, str, "CKV", 23, 23);
+    nfc_render_felica_block(&data->data.fs.ck, str, "CK", 25, 25);
+    nfc_render_felica_block(&data->data.fs.mc, str, "MC", 25, 24);
+    nfc_render_felica_block(&data->data.fs.wcnt, str, "WCNT", 22, 20);
+    nfc_render_felica_block(&data->data.fs.mac_a, str, "MAC_A", 20, 20);
+    nfc_render_felica_block(&data->data.fs.state, str, "STATE", 20, 21);
+    nfc_render_felica_block(&data->data.fs.crc_check, str, "CRC_CHCK", 15, 17);
 }

applications/main/nfc/helpers/protocol_support/felica/felica_render.h

@@ -4,7 +4,19 @@
 
 #include "../nfc_protocol_support_render_common.h"
 
+void nfc_render_felica_blocks_count(
+    const FelicaData* data,
+    FuriString* str,
+    bool render_auth_notification);
+
 void nfc_render_felica_info(
     const FelicaData* data,
     NfcProtocolFormatType format_type,
     FuriString* str);
+
+void nfc_render_felica_dump(const FelicaData* data, FuriString* str);
+
+void nfc_render_felica_idm(
+    const FelicaData* data,
+    NfcProtocolFormatType format_type,
+    FuriString* str);

applications/main/nfc/helpers/protocol_support/mf_ultralight/mf_ultralight.c

@@ -8,6 +8,7 @@
 
 #include "../nfc_protocol_support_common.h"
 #include "../nfc_protocol_support_gui_common.h"
+#include "../nfc_protocol_support_unlock_helper.h"
 
 enum {
     SubmenuIndexUnlock = SubmenuIndexCommonMax,
@@ -157,48 +158,15 @@ static NfcCommand
     return NfcCommandContinue;
 }
 
-enum {
-    NfcSceneMfUltralightReadMenuStateCardSearch,
-    NfcSceneMfUltralightReadMenuStateCardFound,
-};
-
-static void nfc_scene_read_setup_view(NfcApp* instance) {
-    Popup* popup = instance->popup;
-    popup_reset(popup);
-    uint32_t state = scene_manager_get_scene_state(instance->scene_manager, NfcSceneRead);
-
-    if(state == NfcSceneMfUltralightReadMenuStateCardSearch) {
-        popup_set_icon(instance->popup, 0, 8, &I_NFC_manual_60x50);
-        popup_set_header(instance->popup, "Unlocking", 97, 15, AlignCenter, AlignTop);
-        popup_set_text(
-            instance->popup, "Hold card next\nto Flipper's back", 94, 27, AlignCenter, AlignTop);
-    } else {
-        popup_set_header(instance->popup, "Don't move", 85, 27, AlignCenter, AlignTop);
-        popup_set_icon(instance->popup, 12, 20, &A_Loading_24);
-    }
-
-    view_dispatcher_switch_to_view(instance->view_dispatcher, NfcViewPopup);
-}
-
 static void nfc_scene_read_on_enter_mf_ultralight(NfcApp* instance) {
-    bool unlocking =
-        scene_manager_has_previous_scene(instance->scene_manager, NfcSceneMfUltralightUnlockWarn);
-
-    uint32_t state = unlocking ? NfcSceneMfUltralightReadMenuStateCardSearch :
-                                 NfcSceneMfUltralightReadMenuStateCardFound;
-
-    scene_manager_set_scene_state(instance->scene_manager, NfcSceneRead, state);
-
-    nfc_scene_read_setup_view(instance);
+    nfc_unlock_helper_setup_from_state(instance);
     nfc_poller_start(instance->poller, nfc_scene_read_poller_callback_mf_ultralight, instance);
 }
 
 bool nfc_scene_read_on_event_mf_ultralight(NfcApp* instance, SceneManagerEvent event) {
     if(event.type == SceneManagerEventTypeCustom) {
         if(event.event == NfcCustomEventCardDetected) {
-            scene_manager_set_scene_state(
-                instance->scene_manager, NfcSceneRead, NfcSceneMfUltralightReadMenuStateCardFound);
-            nfc_scene_read_setup_view(instance);
+            nfc_unlock_helper_card_detected_handler(instance);
         } else if((event.event == NfcCustomEventPollerIncomplete)) {
             notification_message(instance->notifications, &sequence_semi_success);
             scene_manager_next_scene(instance->scene_manager, NfcSceneReadSuccess);

applications/main/nfc/helpers/protocol_support/nfc_protocol_support_unlock_helper.c

@@ -0,0 +1,38 @@
+#include "nfc_protocol_support_unlock_helper.h"
+
+static void nfc_scene_read_setup_view(NfcApp* instance) {
+    Popup* popup = instance->popup;
+    popup_reset(popup);
+    uint32_t state = scene_manager_get_scene_state(instance->scene_manager, NfcSceneRead);
+
+    if(state == NfcSceneReadMenuStateCardSearch) {
+        popup_set_icon(instance->popup, 0, 8, &I_NFC_manual_60x50);
+        popup_set_header(instance->popup, "Unlocking", 97, 15, AlignCenter, AlignTop);
+        popup_set_text(
+            instance->popup, "Hold card next\nto Flipper's back", 94, 27, AlignCenter, AlignTop);
+    } else {
+        popup_set_header(instance->popup, "Don't move", 85, 27, AlignCenter, AlignTop);
+        popup_set_icon(instance->popup, 12, 20, &A_Loading_24);
+    }
+
+    view_dispatcher_switch_to_view(instance->view_dispatcher, NfcViewPopup);
+}
+
+void nfc_unlock_helper_setup_from_state(NfcApp* instance) {
+    bool unlocking =
+        scene_manager_has_previous_scene(
+            instance->scene_manager, NfcSceneMfUltralightUnlockWarn) ||
+        scene_manager_has_previous_scene(instance->scene_manager, NfcSceneFelicaUnlockWarn);
+
+    uint32_t state = unlocking ? NfcSceneReadMenuStateCardSearch : NfcSceneReadMenuStateCardFound;
+
+    scene_manager_set_scene_state(instance->scene_manager, NfcSceneRead, state);
+
+    nfc_scene_read_setup_view(instance);
+}
+
+void nfc_unlock_helper_card_detected_handler(NfcApp* instance) {
+    scene_manager_set_scene_state(
+        instance->scene_manager, NfcSceneRead, NfcSceneReadMenuStateCardFound);
+    nfc_scene_read_setup_view(instance);
+}

applications/main/nfc/helpers/protocol_support/nfc_protocol_support_unlock_helper.h

@@ -0,0 +1,9 @@
+#include "nfc/nfc_app_i.h"
+
+typedef enum {
+    NfcSceneReadMenuStateCardSearch,
+    NfcSceneReadMenuStateCardFound,
+} NfcSceneUnlockReadState;
+
+void nfc_unlock_helper_setup_from_state(NfcApp* instance);
+void nfc_unlock_helper_card_detected_handler(NfcApp* instance);

applications/main/nfc/nfc_app.c

@@ -50,6 +50,7 @@ NfcApp* nfc_app_alloc(void) {
 
     instance->nfc = nfc_alloc();
 
+    instance->felica_auth = felica_auth_alloc();
     instance->mf_ul_auth = mf_ultralight_auth_alloc();
     instance->slix_unlock = slix_unlock_alloc();
     instance->mfc_key_cache = mf_classic_key_cache_alloc();
@@ -141,6 +142,7 @@ void nfc_app_free(NfcApp* instance) {
 
     nfc_free(instance->nfc);
 
+    felica_auth_free(instance->felica_auth);
     mf_ultralight_auth_free(instance->mf_ul_auth);
     slix_unlock_free(instance->slix_unlock);
     mf_classic_key_cache_free(instance->mfc_key_cache);

applications/main/nfc/nfc_app_i.h

@@ -33,6 +33,7 @@
 #include "helpers/nfc_emv_parser.h"
 #include "helpers/mf_classic_key_cache.h"
 #include "helpers/nfc_supported_cards.h"
+#include "helpers/felica_auth.h"
 #include "helpers/slix_unlock.h"
 
 #include <dialogs/dialogs.h>
@@ -130,6 +131,7 @@ struct NfcApp {
     NfcScanner* scanner;
     NfcListener* listener;
 
+    FelicaAuthenticationContext* felica_auth;
     MfUltralightAuth* mf_ul_auth;
     SlixUnlock* slix_unlock;
     NfcMfClassicDictAttackContext nfc_dict_context;

applications/main/nfc/scenes/nfc_scene_config.h

@@ -33,6 +33,8 @@ ADD_SCENE(nfc, mf_ultralight_unlock_menu, MfUltralightUnlockMenu)
 ADD_SCENE(nfc, mf_ultralight_unlock_warn, MfUltralightUnlockWarn)
 ADD_SCENE(nfc, mf_ultralight_key_input, MfUltralightKeyInput)
 ADD_SCENE(nfc, mf_ultralight_capture_pass, MfUltralightCapturePass)
+ADD_SCENE(nfc, felica_key_input, FelicaKeyInput)
+ADD_SCENE(nfc, felica_unlock_warn, FelicaUnlockWarn)
 
 ADD_SCENE(nfc, mf_desfire_more_info, MfDesfireMoreInfo)
 ADD_SCENE(nfc, mf_desfire_app, MfDesfireApp)

applications/main/nfc/scenes/nfc_scene_felica_key_input.c

@@ -0,0 +1,46 @@
+#include "../nfc_app_i.h"
+
+void nfc_scene_felica_key_input_byte_input_callback(void* context) {
+    NfcApp* nfc = context;
+
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventByteInputDone);
+}
+
+void nfc_scene_felica_key_input_on_enter(void* context) {
+    NfcApp* nfc = context;
+
+    // Setup view
+    ByteInput* byte_input = nfc->byte_input;
+    byte_input_set_header_text(byte_input, "Enter key in hex");
+    byte_input_set_result_callback(
+        byte_input,
+        nfc_scene_felica_key_input_byte_input_callback,
+        NULL,
+        nfc,
+        nfc->felica_auth->card_key.data,
+        FELICA_DATA_BLOCK_SIZE);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewByteInput);
+}
+
+bool nfc_scene_felica_key_input_on_event(void* context, SceneManagerEvent event) {
+    NfcApp* nfc = context;
+    UNUSED(event);
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcCustomEventByteInputDone) {
+            nfc->felica_auth->skip_auth = false;
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneFelicaUnlockWarn);
+            consumed = true;
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_felica_key_input_on_exit(void* context) {
+    NfcApp* nfc = context;
+
+    // Clear view
+    byte_input_set_result_callback(nfc->byte_input, NULL, NULL, NULL, NULL, 0);
+    byte_input_set_header_text(nfc->byte_input, "");
+}

applications/main/nfc/scenes/nfc_scene_felica_unlock_warn.c

@@ -0,0 +1,59 @@
+#include "../nfc_app_i.h"
+
+void nfc_scene_felica_unlock_warn_dialog_callback(DialogExResult result, void* context) {
+    NfcApp* nfc = context;
+
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, result);
+}
+
+void nfc_scene_felica_unlock_warn_on_enter(void* context) {
+    NfcApp* nfc = context;
+
+    const char* message = "Risky Action!";
+    DialogEx* dialog_ex = nfc->dialog_ex;
+    dialog_ex_set_context(dialog_ex, nfc);
+    dialog_ex_set_result_callback(dialog_ex, nfc_scene_felica_unlock_warn_dialog_callback);
+
+    dialog_ex_set_header(dialog_ex, message, 64, 0, AlignCenter, AlignTop);
+
+    FuriString* str = furi_string_alloc();
+    furi_string_cat_printf(str, "Unlock with key: ");
+    for(uint8_t i = 0; i < FELICA_DATA_BLOCK_SIZE; i++)
+        furi_string_cat_printf(str, "%02X ", nfc->felica_auth->card_key.data[i]);
+    furi_string_cat_printf(str, "?");
+
+    nfc_text_store_set(nfc, furi_string_get_cstr(str));
+    furi_string_free(str);
+
+    dialog_ex_set_text(dialog_ex, nfc->text_store, 0, 12, AlignLeft, AlignTop);
+
+    dialog_ex_set_left_button_text(dialog_ex, "Cancel");
+    dialog_ex_set_right_button_text(dialog_ex, "Unlock");
+
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewDialogEx);
+}
+
+bool nfc_scene_felica_unlock_warn_on_event(void* context, SceneManagerEvent event) {
+    NfcApp* nfc = context;
+    UNUSED(event);
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == DialogExResultRight) {
+            nfc->felica_auth->skip_auth = false;
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneRead);
+            consumed = true;
+        } else if(event.event == DialogExResultLeft) {
+            scene_manager_previous_scene(nfc->scene_manager);
+            consumed = true;
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_felica_unlock_warn_on_exit(void* context) {
+    NfcApp* nfc = context;
+
+    dialog_ex_reset(nfc->dialog_ex);
+    nfc_text_store_clear(nfc);
+}