added ISO15693 (NfcV) reading, saving, emulating and revealing from privacy mode (unlock) (#2316)

* added support for ISO15693 (NfcV) emulation, added support for reading SLIX tags
* SLIX: fixed crash situation when an invalid password was requested
* ISO15693: show emulate menu when opening file
* rename NfcV emulate scene to match other NfcV names
* optimize allocation size for signals
* ISO15693: further optimizations of allocation and free code
* ISO15693: reduce latency on state machine reset
* respond with block security status when option flag is set
* increased maximum memory size to match standard
  added security status handling/load/save
  added SELECT/QUIET handling
  more fine grained allocation routines and checks
  fix memset sizes
* added "Listen NfcV Reader" to sniff traffic from reader to card
* added correct description to delete menu
* also added DSFID/AFI handling and locking
* increase sniff log size
* scale NfcV frequency a bit, add echo mode, fix signal level at the end
* use symbolic modulated/unmodulated GPIO levels
* honor AFI field, decrease verbosity and removed debug code
* refactor defines for less namespace pollution by using NFCV_ prefixes
* correct an oversight that original cards return an generic error when addressing outside block range
* use inverse modulation, increasing readable range significantly
* rework and better document nfc chip initialization
* nfcv code review fixes
* Disable accidentally left on signal debug gpio output
* Improve NFCV Read/Info GUIs. Authored by @xMasterX, committed by @nvx
* Fix crash that occurs when you exit from NFCV emulation and start it again. Authored by @xMasterX, committed by @nvx
* Remove delay from emulation loop. This improves compatibility when the reader is Android.
* Lib: digital signal debug output pin info

Co-authored-by: Tiernan Messmer <tiernan.messmer@gmail.com>
Co-authored-by: MX <10697207+xMasterX@users.noreply.github.com>
Co-authored-by: gornekich <n.gorbadey@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>

applications/main/nfc/helpers/nfc_custom_event.h

@@ -12,4 +12,6 @@ enum NfcCustomEvent {
     NfcCustomEventDictAttackSkip,
     NfcCustomEventRpcLoad,
     NfcCustomEventRpcSessionClose,
+    NfcCustomEventUpdateLog,
+    NfcCustomEventSaveShadow,
 };

applications/main/nfc/nfc.c

@@ -290,6 +290,9 @@ int32_t nfc_app(void* p) {
                 } else if(nfc->dev->format == NfcDeviceSaveFormatMifareClassic) {
                     scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicEmulate);
                     DOLPHIN_DEED(DolphinDeedNfcEmulate);
+                } else if(nfc->dev->format == NfcDeviceSaveFormatNfcV) {
+                    scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVEmulate);
+                    DOLPHIN_DEED(DolphinDeedNfcEmulate);
                 } else if(nfc->dev->format == NfcDeviceSaveFormatBankCard) {
                     scene_manager_next_scene(nfc->scene_manager, NfcSceneDeviceInfo);
                 } else {

applications/main/nfc/scenes/nfc_scene_config.h

@@ -14,6 +14,13 @@ ADD_SCENE(nfc, file_select, FileSelect)
 ADD_SCENE(nfc, emulate_uid, EmulateUid)
 ADD_SCENE(nfc, nfca_read_success, NfcaReadSuccess)
 ADD_SCENE(nfc, nfca_menu, NfcaMenu)
+ADD_SCENE(nfc, nfcv_menu, NfcVMenu)
+ADD_SCENE(nfc, nfcv_unlock_menu, NfcVUnlockMenu)
+ADD_SCENE(nfc, nfcv_key_input, NfcVKeyInput)
+ADD_SCENE(nfc, nfcv_unlock, NfcVUnlock)
+ADD_SCENE(nfc, nfcv_emulate, NfcVEmulate)
+ADD_SCENE(nfc, nfcv_sniff, NfcVSniff)
+ADD_SCENE(nfc, nfcv_read_success, NfcVReadSuccess)
 ADD_SCENE(nfc, mf_ultralight_read_success, MfUltralightReadSuccess)
 ADD_SCENE(nfc, mf_ultralight_data, MfUltralightData)
 ADD_SCENE(nfc, mf_ultralight_menu, MfUltralightMenu)

applications/main/nfc/scenes/nfc_scene_delete.c

@@ -31,6 +31,8 @@ void nfc_scene_delete_on_enter(void* context) {
         nfc->widget, 64, 24, AlignCenter, AlignTop, FontSecondary, furi_string_get_cstr(temp_str));
 
     NfcProtocol protocol = nfc->dev->dev_data.protocol;
+    const char* nfc_type = "NFC-A";
+
     if(protocol == NfcDeviceProtocolEMV) {
         furi_string_set(temp_str, "EMV bank card");
     } else if(protocol == NfcDeviceProtocolMifareUl) {
@@ -39,12 +41,15 @@ void nfc_scene_delete_on_enter(void* context) {
         furi_string_set(temp_str, nfc_mf_classic_type(nfc->dev->dev_data.mf_classic_data.type));
     } else if(protocol == NfcDeviceProtocolMifareDesfire) {
         furi_string_set(temp_str, "MIFARE DESFire");
+    } else if(protocol == NfcDeviceProtocolNfcV) {
+        furi_string_set(temp_str, "ISO15693 tag");
+        nfc_type = "NFC-V";
     } else {
         furi_string_set(temp_str, "Unknown ISO tag");
     }
     widget_add_string_element(
         nfc->widget, 64, 34, AlignCenter, AlignTop, FontSecondary, furi_string_get_cstr(temp_str));
-    widget_add_string_element(nfc->widget, 64, 44, AlignCenter, AlignTop, FontSecondary, "NFC-A");
+    widget_add_string_element(nfc->widget, 64, 44, AlignCenter, AlignTop, FontSecondary, nfc_type);
     furi_string_free(temp_str);
 
     view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);

applications/main/nfc/scenes/nfc_scene_extra_actions.c

@@ -4,6 +4,8 @@ enum SubmenuIndex {
     SubmenuIndexReadCardType,
     SubmenuIndexMfClassicKeys,
     SubmenuIndexMfUltralightUnlock,
+    SubmenuIndexNfcVUnlock,
+    SubmenuIndexNfcVSniff,
 };
 
 void nfc_scene_extra_actions_submenu_callback(void* context, uint32_t index) {
@@ -34,6 +36,18 @@ void nfc_scene_extra_actions_on_enter(void* context) {
         SubmenuIndexMfUltralightUnlock,
         nfc_scene_extra_actions_submenu_callback,
         nfc);
+    submenu_add_item(
+        submenu,
+        "Unlock SLIX-L",
+        SubmenuIndexNfcVUnlock,
+        nfc_scene_extra_actions_submenu_callback,
+        nfc);
+    submenu_add_item(
+        submenu,
+        "Listen NfcV Reader",
+        SubmenuIndexNfcVSniff,
+        nfc_scene_extra_actions_submenu_callback,
+        nfc);
     submenu_set_selected_item(
         submenu, scene_manager_get_scene_state(nfc->scene_manager, NfcSceneExtraActions));
     view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewMenu);
@@ -58,6 +72,12 @@ bool nfc_scene_extra_actions_on_event(void* context, SceneManagerEvent event) {
             scene_manager_set_scene_state(nfc->scene_manager, NfcSceneReadCardType, 0);
             scene_manager_next_scene(nfc->scene_manager, NfcSceneReadCardType);
             consumed = true;
+        } else if(event.event == SubmenuIndexNfcVUnlock) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVUnlockMenu);
+            consumed = true;
+        } else if(event.event == SubmenuIndexNfcVSniff) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVSniff);
+            consumed = true;
         }
         scene_manager_set_scene_state(nfc->scene_manager, NfcSceneExtraActions, event.event);
     }

applications/main/nfc/scenes/nfc_scene_nfc_data_info.c

@@ -41,19 +41,165 @@ void nfc_scene_nfc_data_info_on_enter(void* context) {
             temp_str, "\e#%s\n", nfc_mf_classic_type(dev_data->mf_classic_data.type));
     } else if(protocol == NfcDeviceProtocolMifareDesfire) {
         furi_string_cat_printf(temp_str, "\e#MIFARE DESFire\n");
+    } else if(protocol == NfcDeviceProtocolNfcV) {
+        switch(dev_data->nfcv_data.sub_type) {
+        case NfcVTypePlain:
+            furi_string_cat_printf(temp_str, "\e#ISO15693\n");
+            break;
+        case NfcVTypeSlix:
+            furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX\n");
+            break;
+        case NfcVTypeSlixS:
+            furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX-S\n");
+            break;
+        case NfcVTypeSlixL:
+            furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX-L\n");
+            break;
+        case NfcVTypeSlix2:
+            furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX2\n");
+            break;
+        default:
+            furi_string_cat_printf(temp_str, "\e#ISO15693 (unknown)\n");
+            break;
+        }
     } else {
         furi_string_cat_printf(temp_str, "\e#Unknown ISO tag\n");
     }
 
     // Set tag iso data
-    char iso_type = FURI_BIT(nfc_data->sak, 5) ? '4' : '3';
+    if(protocol == NfcDeviceProtocolNfcV) {
-    furi_string_cat_printf(temp_str, "ISO 14443-%c (NFC-A)\n", iso_type);
+        NfcVData* nfcv_data = &nfc->dev->dev_data.nfcv_data;
-    furi_string_cat_printf(temp_str, "UID:");
+
-    for(size_t i = 0; i < nfc_data->uid_len; i++) {
+        furi_string_cat_printf(temp_str, "UID:\n");
-        furi_string_cat_printf(temp_str, " %02X", nfc_data->uid[i]);
+        for(size_t i = 0; i < nfc_data->uid_len; i++) {
+            furi_string_cat_printf(temp_str, " %02X", nfc_data->uid[i]);
+        }
+        furi_string_cat_printf(temp_str, "\n");
+
+        furi_string_cat_printf(
+            temp_str,
+            "DSFID: %02X %s\n",
+            nfcv_data->dsfid,
+            (nfcv_data->security_status[0] & NfcVLockBitDsfid) ? "(locked)" : "");
+        furi_string_cat_printf(
+            temp_str,
+            "AFI: %02X %s\n",
+            nfcv_data->afi,
+            (nfcv_data->security_status[0] & NfcVLockBitAfi) ? "(locked)" : "");
+        furi_string_cat_printf(temp_str, "IC Ref: %02X\n", nfcv_data->ic_ref);
+        furi_string_cat_printf(temp_str, "Blocks: %02X\n", nfcv_data->block_num);
+        furi_string_cat_printf(temp_str, "Blocksize: %02X\n", nfcv_data->block_size);
+
+        switch(dev_data->nfcv_data.sub_type) {
+        case NfcVTypePlain:
+            furi_string_cat_printf(temp_str, "Type: Plain\n");
+            break;
+        case NfcVTypeSlix:
+            furi_string_cat_printf(temp_str, "Type: SLIX\n");
+            furi_string_cat_printf(temp_str, "Keys:\n");
+            furi_string_cat_printf(
+                temp_str,
+                " EAS      %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_eas, 4));
+            break;
+        case NfcVTypeSlixS:
+            furi_string_cat_printf(temp_str, "Type: SLIX-S\n");
+            furi_string_cat_printf(temp_str, "Keys:\n");
+            furi_string_cat_printf(
+                temp_str,
+                " Read     %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_read, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " Write    %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_write, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " Privacy  %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_privacy, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " Destroy  %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_destroy, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " EAS      %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_eas, 4));
+            break;
+        case NfcVTypeSlixL:
+            furi_string_cat_printf(temp_str, "Type: SLIX-L\n");
+            furi_string_cat_printf(temp_str, "Keys:\n");
+            furi_string_cat_printf(
+                temp_str,
+                " Privacy  %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_privacy, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " Destroy  %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_destroy, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " EAS      %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_eas, 4));
+            break;
+        case NfcVTypeSlix2:
+            furi_string_cat_printf(temp_str, "Type: SLIX2\n");
+            furi_string_cat_printf(temp_str, "Keys:\n");
+            furi_string_cat_printf(
+                temp_str,
+                " Read     %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_read, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " Write    %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_write, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " Privacy  %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_privacy, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " Destroy  %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_destroy, 4));
+            furi_string_cat_printf(
+                temp_str,
+                " EAS      %08llX\n",
+                nfc_util_bytes2num(nfcv_data->sub_data.slix.key_eas, 4));
+            break;
+        default:
+            furi_string_cat_printf(temp_str, "\e#ISO15693 (unknown)\n");
+            break;
+        }
+
+        furi_string_cat_printf(
+            temp_str, "Data (%d byte)\n", nfcv_data->block_num * nfcv_data->block_size);
+
+        int maxBlocks = nfcv_data->block_num;
+        if(maxBlocks > 32) {
+            maxBlocks = 32;
+            furi_string_cat_printf(temp_str, "(truncated to %d blocks)\n", maxBlocks);
+        }
+
+        for(int block = 0; block < maxBlocks; block++) {
+            const char* status = (nfcv_data->security_status[block] & 0x01) ? "(lck)" : "";
+            for(int pos = 0; pos < nfcv_data->block_size; pos++) {
+                furi_string_cat_printf(
+                    temp_str, " %02X", nfcv_data->data[block * nfcv_data->block_size + pos]);
+            }
+            furi_string_cat_printf(temp_str, " %s\n", status);
+        }
+
+    } else {
+        char iso_type = FURI_BIT(nfc_data->sak, 5) ? '4' : '3';
+        furi_string_cat_printf(temp_str, "ISO 14443-%c (NFC-A)\n", iso_type);
+        furi_string_cat_printf(temp_str, "UID:");
+        for(size_t i = 0; i < nfc_data->uid_len; i++) {
+            furi_string_cat_printf(temp_str, " %02X", nfc_data->uid[i]);
+        }
+        furi_string_cat_printf(
+            temp_str, "\nATQA: %02X %02X ", nfc_data->atqa[1], nfc_data->atqa[0]);
+        furi_string_cat_printf(temp_str, " SAK: %02X", nfc_data->sak);
     }
-    furi_string_cat_printf(temp_str, "\nATQA: %02X %02X ", nfc_data->atqa[1], nfc_data->atqa[0]);
-    furi_string_cat_printf(temp_str, " SAK: %02X", nfc_data->sak);
 
     // Set application specific data
     if(protocol == NfcDeviceProtocolMifareDesfire) {
@@ -139,6 +285,8 @@ bool nfc_scene_nfc_data_info_on_event(void* context, SceneManagerEvent event) {
                 consumed = true;
             } else if(protocol == NfcDeviceProtocolMifareClassic) {
                 scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicData);
+            } else if(protocol == NfcDeviceProtocolNfcV) {
+                scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVMenu);
                 consumed = true;
             }
         }

applications/main/nfc/scenes/nfc_scene_nfcv_emulate.c

@@ -0,0 +1,169 @@
+#include "../nfc_i.h"
+
+#define NFC_SCENE_EMULATE_NFCV_LOG_SIZE_MAX (200)
+
+enum {
+    NfcSceneNfcVEmulateStateWidget,
+    NfcSceneNfcVEmulateStateTextBox,
+};
+
+bool nfc_scene_nfcv_emulate_worker_callback(NfcWorkerEvent event, void* context) {
+    furi_assert(context);
+    Nfc* nfc = context;
+
+    switch(event) {
+    case NfcWorkerEventNfcVCommandExecuted:
+        if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+            view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventUpdateLog);
+        }
+        break;
+    case NfcWorkerEventNfcVContentChanged:
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventSaveShadow);
+        break;
+    default:
+        break;
+    }
+    return true;
+}
+
+void nfc_scene_nfcv_emulate_widget_callback(GuiButtonType result, InputType type, void* context) {
+    furi_assert(context);
+    Nfc* nfc = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, result);
+    }
+}
+
+void nfc_scene_nfcv_emulate_textbox_callback(void* context) {
+    furi_assert(context);
+    Nfc* nfc = context;
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventViewExit);
+}
+
+static void nfc_scene_nfcv_emulate_widget_config(Nfc* nfc, bool data_received) {
+    FuriHalNfcDevData* data = &nfc->dev->dev_data.nfc_data;
+    Widget* widget = nfc->widget;
+    widget_reset(widget);
+    FuriString* info_str;
+    info_str = furi_string_alloc();
+
+    widget_add_icon_element(widget, 0, 3, &I_NFC_dolphin_emulation_47x61);
+    widget_add_string_multiline_element(
+        widget, 87, 13, AlignCenter, AlignTop, FontPrimary, "Emulating\nNFC V");
+    if(strcmp(nfc->dev->dev_name, "")) {
+        furi_string_printf(info_str, "%s", nfc->dev->dev_name);
+    } else {
+        for(uint8_t i = 0; i < data->uid_len; i++) {
+            furi_string_cat_printf(info_str, "%02X ", data->uid[i]);
+        }
+    }
+    furi_string_trim(info_str);
+    widget_add_text_box_element(
+        widget, 52, 40, 70, 21, AlignCenter, AlignTop, furi_string_get_cstr(info_str), true);
+    furi_string_free(info_str);
+    if(data_received) {
+        if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+            widget_add_button_element(
+                widget, GuiButtonTypeCenter, "Log", nfc_scene_nfcv_emulate_widget_callback, nfc);
+        }
+    }
+}
+
+void nfc_scene_nfcv_emulate_on_enter(void* context) {
+    Nfc* nfc = context;
+
+    // Setup Widget
+    nfc_scene_nfcv_emulate_widget_config(nfc, false);
+    // Setup TextBox
+    TextBox* text_box = nfc->text_box;
+    text_box_set_font(text_box, TextBoxFontHex);
+    text_box_set_focus(text_box, TextBoxFocusEnd);
+    text_box_set_text(text_box, "");
+    furi_string_reset(nfc->text_box_store);
+
+    // Set Widget state and view
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneNfcVEmulate, NfcSceneNfcVEmulateStateWidget);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+    // Start worker
+    memset(&nfc->dev->dev_data.reader_data, 0, sizeof(NfcReaderRequestData));
+    nfc_worker_start(
+        nfc->worker,
+        NfcWorkerStateNfcVEmulate,
+        &nfc->dev->dev_data,
+        nfc_scene_nfcv_emulate_worker_callback,
+        nfc);
+
+    nfc_blink_emulate_start(nfc);
+}
+
+bool nfc_scene_nfcv_emulate_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    NfcVData* nfcv_data = &nfc->dev->dev_data.nfcv_data;
+    uint32_t state = scene_manager_get_scene_state(nfc->scene_manager, NfcSceneNfcVEmulate);
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcCustomEventUpdateLog) {
+            // Add data button to widget if data is received for the first time
+            if(strlen(nfcv_data->last_command) > 0) {
+                if(!furi_string_size(nfc->text_box_store)) {
+                    nfc_scene_nfcv_emulate_widget_config(nfc, true);
+                }
+                /* use the last n bytes from the log so there's enough space for the new log entry */
+                size_t maxSize =
+                    NFC_SCENE_EMULATE_NFCV_LOG_SIZE_MAX - (strlen(nfcv_data->last_command) + 1);
+                if(furi_string_size(nfc->text_box_store) >= maxSize) {
+                    furi_string_right(nfc->text_box_store, (strlen(nfcv_data->last_command) + 1));
+                }
+                furi_string_cat_printf(nfc->text_box_store, "%s", nfcv_data->last_command);
+                furi_string_push_back(nfc->text_box_store, '\n');
+                text_box_set_text(nfc->text_box, furi_string_get_cstr(nfc->text_box_store));
+
+                /* clear previously logged command */
+                strcpy(nfcv_data->last_command, "");
+            }
+            consumed = true;
+        } else if(event.event == NfcCustomEventSaveShadow) {
+            if(furi_string_size(nfc->dev->load_path)) {
+                nfc_device_save_shadow(nfc->dev, furi_string_get_cstr(nfc->dev->load_path));
+            }
+            consumed = true;
+        } else if(event.event == GuiButtonTypeCenter && state == NfcSceneNfcVEmulateStateWidget) {
+            if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+                view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewTextBox);
+                scene_manager_set_scene_state(
+                    nfc->scene_manager, NfcSceneNfcVEmulate, NfcSceneNfcVEmulateStateTextBox);
+            }
+            consumed = true;
+        } else if(event.event == NfcCustomEventViewExit && state == NfcSceneNfcVEmulateStateTextBox) {
+            view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneNfcVEmulate, NfcSceneNfcVEmulateStateWidget);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        if(state == NfcSceneNfcVEmulateStateTextBox) {
+            view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneNfcVEmulate, NfcSceneNfcVEmulateStateWidget);
+            consumed = true;
+        }
+    }
+
+    return consumed;
+}
+
+void nfc_scene_nfcv_emulate_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    // Stop worker
+    nfc_worker_stop(nfc->worker);
+
+    // Clear view
+    widget_reset(nfc->widget);
+    text_box_reset(nfc->text_box);
+    furi_string_reset(nfc->text_box_store);
+
+    nfc_blink_stop(nfc);
+}

applications/main/nfc/scenes/nfc_scene_nfcv_key_input.c

@@ -0,0 +1,48 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+void nfc_scene_nfcv_key_input_byte_input_callback(void* context) {
+    Nfc* nfc = context;
+    NfcVSlixData* data = &nfc->dev->dev_data.nfcv_data.sub_data.slix;
+
+    memcpy(data->key_privacy, nfc->byte_input_store, 4);
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventByteInputDone);
+}
+
+void nfc_scene_nfcv_key_input_on_enter(void* context) {
+    Nfc* nfc = context;
+
+    // Setup view
+    ByteInput* byte_input = nfc->byte_input;
+    byte_input_set_header_text(byte_input, "Enter The Password In Hex");
+    byte_input_set_result_callback(
+        byte_input,
+        nfc_scene_nfcv_key_input_byte_input_callback,
+        NULL,
+        nfc,
+        nfc->byte_input_store,
+        4);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewByteInput);
+}
+
+bool nfc_scene_nfcv_key_input_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcCustomEventByteInputDone) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVUnlock);
+            DOLPHIN_DEED(DolphinDeedNfcRead);
+            consumed = true;
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_nfcv_key_input_on_exit(void* context) {
+    Nfc* 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_nfcv_menu.c

@@ -0,0 +1,68 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+enum SubmenuIndex {
+    SubmenuIndexSave,
+    SubmenuIndexEmulate,
+    SubmenuIndexInfo,
+};
+
+void nfc_scene_nfcv_menu_submenu_callback(void* context, uint32_t index) {
+    Nfc* nfc = context;
+
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, index);
+}
+
+void nfc_scene_nfcv_menu_on_enter(void* context) {
+    Nfc* nfc = context;
+    Submenu* submenu = nfc->submenu;
+
+    submenu_add_item(
+        submenu, "Emulate", SubmenuIndexEmulate, nfc_scene_nfcv_menu_submenu_callback, nfc);
+    submenu_add_item(submenu, "Save", SubmenuIndexSave, nfc_scene_nfcv_menu_submenu_callback, nfc);
+    submenu_add_item(submenu, "Info", SubmenuIndexInfo, nfc_scene_nfcv_menu_submenu_callback, nfc);
+
+    submenu_set_selected_item(
+        nfc->submenu, scene_manager_get_scene_state(nfc->scene_manager, NfcSceneNfcVMenu));
+
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewMenu);
+}
+
+bool nfc_scene_nfcv_menu_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == SubmenuIndexSave) {
+            nfc->dev->format = NfcDeviceSaveFormatNfcV;
+            // Clear device name
+            nfc_device_set_name(nfc->dev, "");
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneSaveName);
+            consumed = true;
+        } else if(event.event == SubmenuIndexEmulate) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVEmulate);
+            if(scene_manager_has_previous_scene(nfc->scene_manager, NfcSceneSetType)) {
+                DOLPHIN_DEED(DolphinDeedNfcAddEmulate);
+            } else {
+                DOLPHIN_DEED(DolphinDeedNfcEmulate);
+            }
+            consumed = true;
+        } else if(event.event == SubmenuIndexInfo) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcDataInfo);
+            consumed = true;
+        }
+        scene_manager_set_scene_state(nfc->scene_manager, NfcSceneNfcVMenu, event.event);
+
+    } else if(event.type == SceneManagerEventTypeBack) {
+        consumed = scene_manager_previous_scene(nfc->scene_manager);
+    }
+
+    return consumed;
+}
+
+void nfc_scene_nfcv_menu_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    // Clear view
+    submenu_reset(nfc->submenu);
+}

applications/main/nfc/scenes/nfc_scene_nfcv_read_success.c

@@ -0,0 +1,94 @@
+#include "../nfc_i.h"
+
+void nfc_scene_nfcv_read_success_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    furi_assert(context);
+    Nfc* nfc = context;
+
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, result);
+    }
+}
+
+void nfc_scene_nfcv_read_success_on_enter(void* context) {
+    Nfc* nfc = context;
+    NfcDeviceData* dev_data = &nfc->dev->dev_data;
+    FuriHalNfcDevData* nfc_data = &nfc->dev->dev_data.nfc_data;
+    NfcVData* nfcv_data = &nfc->dev->dev_data.nfcv_data;
+    // Setup view
+    Widget* widget = nfc->widget;
+    widget_add_button_element(
+        widget, GuiButtonTypeLeft, "Retry", nfc_scene_nfcv_read_success_widget_callback, nfc);
+    widget_add_button_element(
+        widget, GuiButtonTypeRight, "More", nfc_scene_nfcv_read_success_widget_callback, nfc);
+
+    FuriString* temp_str = furi_string_alloc();
+
+    switch(dev_data->nfcv_data.sub_type) {
+    case NfcVTypePlain:
+        furi_string_cat_printf(temp_str, "\e#ISO15693\n");
+        break;
+    case NfcVTypeSlix:
+        furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX\n");
+        break;
+    case NfcVTypeSlixS:
+        furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX-S\n");
+        break;
+    case NfcVTypeSlixL:
+        furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX-L\n");
+        break;
+    case NfcVTypeSlix2:
+        furi_string_cat_printf(temp_str, "\e#ISO15693 SLIX2\n");
+        break;
+    default:
+        furi_string_cat_printf(temp_str, "\e#ISO15693 (unknown)\n");
+        break;
+    }
+    furi_string_cat_printf(temp_str, "UID:");
+    for(size_t i = 0; i < nfc_data->uid_len; i++) {
+        furi_string_cat_printf(temp_str, " %02X", nfc_data->uid[i]);
+    }
+    furi_string_cat_printf(temp_str, "\n");
+    furi_string_cat_printf(temp_str, "Blocks: %02X\n", nfcv_data->block_num);
+    furi_string_cat_printf(temp_str, "Blocksize: %02X\n", nfcv_data->block_size);
+
+    widget_add_text_scroll_element(widget, 0, 0, 128, 52, furi_string_get_cstr(temp_str));
+    furi_string_free(temp_str);
+
+    notification_message_block(nfc->notifications, &sequence_set_green_255);
+
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+}
+
+bool nfc_scene_nfcv_read_success_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeLeft) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneRetryConfirm);
+            consumed = true;
+        } else if(event.event == GuiButtonTypeRight) {
+            // Clear device name
+            nfc_device_set_name(nfc->dev, "");
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVMenu);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_next_scene(nfc->scene_manager, NfcSceneExitConfirm);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void nfc_scene_nfcv_read_success_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    notification_message_block(nfc->notifications, &sequence_reset_green);
+
+    // Clear view
+    widget_reset(nfc->widget);
+}

applications/main/nfc/scenes/nfc_scene_nfcv_sniff.c

@@ -0,0 +1,155 @@
+#include "../nfc_i.h"
+
+#define NFC_SCENE_EMULATE_NFCV_LOG_SIZE_MAX (800)
+
+enum {
+    NfcSceneNfcVSniffStateWidget,
+    NfcSceneNfcVSniffStateTextBox,
+};
+
+bool nfc_scene_nfcv_sniff_worker_callback(NfcWorkerEvent event, void* context) {
+    UNUSED(event);
+    furi_assert(context);
+    Nfc* nfc = context;
+
+    switch(event) {
+    case NfcWorkerEventNfcVCommandExecuted:
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventUpdateLog);
+        break;
+    case NfcWorkerEventNfcVContentChanged:
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventSaveShadow);
+        break;
+    default:
+        break;
+    }
+    return true;
+}
+
+void nfc_scene_nfcv_sniff_widget_callback(GuiButtonType result, InputType type, void* context) {
+    furi_assert(context);
+    Nfc* nfc = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, result);
+    }
+}
+
+void nfc_scene_nfcv_sniff_textbox_callback(void* context) {
+    furi_assert(context);
+    Nfc* nfc = context;
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventViewExit);
+}
+
+static void nfc_scene_nfcv_sniff_widget_config(Nfc* nfc, bool data_received) {
+    Widget* widget = nfc->widget;
+    widget_reset(widget);
+    FuriString* info_str;
+    info_str = furi_string_alloc();
+
+    widget_add_icon_element(widget, 0, 3, &I_RFIDDolphinSend_97x61);
+    widget_add_string_element(widget, 89, 32, AlignCenter, AlignTop, FontPrimary, "Listen NfcV");
+    furi_string_trim(info_str);
+    widget_add_text_box_element(
+        widget, 56, 43, 70, 21, AlignCenter, AlignTop, furi_string_get_cstr(info_str), true);
+    furi_string_free(info_str);
+    if(data_received) {
+        widget_add_button_element(
+            widget, GuiButtonTypeCenter, "Log", nfc_scene_nfcv_sniff_widget_callback, nfc);
+    }
+}
+
+void nfc_scene_nfcv_sniff_on_enter(void* context) {
+    Nfc* nfc = context;
+
+    // Setup Widget
+    nfc_scene_nfcv_sniff_widget_config(nfc, false);
+    // Setup TextBox
+    TextBox* text_box = nfc->text_box;
+    text_box_set_font(text_box, TextBoxFontHex);
+    text_box_set_focus(text_box, TextBoxFocusEnd);
+    text_box_set_text(text_box, "");
+    furi_string_reset(nfc->text_box_store);
+
+    // Set Widget state and view
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneNfcVSniff, NfcSceneNfcVSniffStateWidget);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+    // Start worker
+    memset(&nfc->dev->dev_data.reader_data, 0, sizeof(NfcReaderRequestData));
+    nfc_worker_start(
+        nfc->worker,
+        NfcWorkerStateNfcVSniff,
+        &nfc->dev->dev_data,
+        nfc_scene_nfcv_sniff_worker_callback,
+        nfc);
+
+    nfc_blink_emulate_start(nfc);
+}
+
+bool nfc_scene_nfcv_sniff_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    NfcVData* nfcv_data = &nfc->dev->dev_data.nfcv_data;
+    uint32_t state = scene_manager_get_scene_state(nfc->scene_manager, NfcSceneNfcVSniff);
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcCustomEventUpdateLog) {
+            // Add data button to widget if data is received for the first time
+            if(strlen(nfcv_data->last_command) > 0) {
+                if(!furi_string_size(nfc->text_box_store)) {
+                    nfc_scene_nfcv_sniff_widget_config(nfc, true);
+                }
+                /* use the last n bytes from the log so there's enough space for the new log entry */
+                size_t maxSize =
+                    NFC_SCENE_EMULATE_NFCV_LOG_SIZE_MAX - (strlen(nfcv_data->last_command) + 1);
+                if(furi_string_size(nfc->text_box_store) >= maxSize) {
+                    furi_string_right(nfc->text_box_store, (strlen(nfcv_data->last_command) + 1));
+                }
+                furi_string_cat_printf(nfc->text_box_store, "%s", nfcv_data->last_command);
+                furi_string_push_back(nfc->text_box_store, '\n');
+                text_box_set_text(nfc->text_box, furi_string_get_cstr(nfc->text_box_store));
+
+                /* clear previously logged command */
+                strcpy(nfcv_data->last_command, "");
+            }
+            consumed = true;
+        } else if(event.event == NfcCustomEventSaveShadow) {
+            if(furi_string_size(nfc->dev->load_path)) {
+                nfc_device_save_shadow(nfc->dev, furi_string_get_cstr(nfc->dev->load_path));
+            }
+            consumed = true;
+        } else if(event.event == GuiButtonTypeCenter && state == NfcSceneNfcVSniffStateWidget) {
+            view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewTextBox);
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneNfcVSniff, NfcSceneNfcVSniffStateTextBox);
+            consumed = true;
+        } else if(event.event == NfcCustomEventViewExit && state == NfcSceneNfcVSniffStateTextBox) {
+            view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneNfcVSniff, NfcSceneNfcVSniffStateWidget);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        if(state == NfcSceneNfcVSniffStateTextBox) {
+            view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneNfcVSniff, NfcSceneNfcVSniffStateWidget);
+            consumed = true;
+        }
+    }
+
+    return consumed;
+}
+
+void nfc_scene_nfcv_sniff_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    // Stop worker
+    nfc_worker_stop(nfc->worker);
+
+    // Clear view
+    widget_reset(nfc->widget);
+    text_box_reset(nfc->text_box);
+    furi_string_reset(nfc->text_box_store);
+
+    nfc_blink_stop(nfc);
+}

applications/main/nfc/scenes/nfc_scene_nfcv_unlock.c

@@ -0,0 +1,154 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+typedef enum {
+    NfcSceneNfcVUnlockStateIdle,
+    NfcSceneNfcVUnlockStateDetecting,
+    NfcSceneNfcVUnlockStateUnlocked,
+    NfcSceneNfcVUnlockStateAlreadyUnlocked,
+    NfcSceneNfcVUnlockStateNotSupportedCard,
+} NfcSceneNfcVUnlockState;
+
+static bool nfc_scene_nfcv_unlock_worker_callback(NfcWorkerEvent event, void* context) {
+    Nfc* nfc = context;
+    NfcVSlixData* data = &nfc->dev->dev_data.nfcv_data.sub_data.slix;
+
+    if(event == NfcWorkerEventNfcVPassKey) {
+        memcpy(data->key_privacy, nfc->byte_input_store, 4);
+    } else {
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, event);
+    }
+    return true;
+}
+
+void nfc_scene_nfcv_unlock_popup_callback(void* context) {
+    Nfc* nfc = context;
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventViewExit);
+}
+
+void nfc_scene_nfcv_unlock_set_state(Nfc* nfc, NfcSceneNfcVUnlockState state) {
+    FuriHalNfcDevData* nfc_data = &(nfc->dev->dev_data.nfc_data);
+    NfcVData* nfcv_data = &(nfc->dev->dev_data.nfcv_data);
+
+    uint32_t curr_state = scene_manager_get_scene_state(nfc->scene_manager, NfcSceneNfcVUnlock);
+    if(curr_state != state) {
+        Popup* popup = nfc->popup;
+        if(state == NfcSceneNfcVUnlockStateDetecting) {
+            popup_reset(popup);
+            popup_set_text(
+                popup, "Put figurine on\nFlipper's back", 97, 24, AlignCenter, AlignTop);
+            popup_set_icon(popup, 0, 8, &I_NFC_manual_60x50);
+        } else if(state == NfcSceneNfcVUnlockStateUnlocked) {
+            popup_reset(popup);
+
+            if(nfc_worker_get_state(nfc->worker) == NfcWorkerStateNfcVUnlockAndSave) {
+                snprintf(
+                    nfc->dev->dev_name,
+                    sizeof(nfc->dev->dev_name),
+                    "SLIX_%02X%02X%02X%02X%02X%02X%02X%02X",
+                    nfc_data->uid[0],
+                    nfc_data->uid[1],
+                    nfc_data->uid[2],
+                    nfc_data->uid[3],
+                    nfc_data->uid[4],
+                    nfc_data->uid[5],
+                    nfc_data->uid[6],
+                    nfc_data->uid[7]);
+
+                nfc->dev->format = NfcDeviceSaveFormatNfcV;
+
+                if(nfc_save_file(nfc)) {
+                    popup_set_header(popup, "Successfully\nsaved", 94, 3, AlignCenter, AlignTop);
+                } else {
+                    popup_set_header(
+                        popup, "Unlocked but\nsave failed!", 94, 3, AlignCenter, AlignTop);
+                }
+            } else {
+                popup_set_header(popup, "Successfully\nunlocked", 94, 3, AlignCenter, AlignTop);
+            }
+
+            notification_message(nfc->notifications, &sequence_single_vibro);
+            //notification_message(nfc->notifications, &sequence_success);
+
+            popup_set_icon(popup, 0, 6, &I_RFIDDolphinSuccess_108x57);
+            popup_set_context(popup, nfc);
+            popup_set_callback(popup, nfc_scene_nfcv_unlock_popup_callback);
+            popup_set_timeout(popup, 1500);
+
+            view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+            DOLPHIN_DEED(DolphinDeedNfcReadSuccess);
+
+        } else if(state == NfcSceneNfcVUnlockStateAlreadyUnlocked) {
+            popup_reset(popup);
+
+            popup_set_header(popup, "Already\nUnlocked!", 94, 3, AlignCenter, AlignTop);
+            popup_set_icon(popup, 0, 6, &I_RFIDDolphinSuccess_108x57);
+            popup_set_context(popup, nfc);
+            popup_set_callback(popup, nfc_scene_nfcv_unlock_popup_callback);
+            popup_set_timeout(popup, 1500);
+
+            view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+        } else if(state == NfcSceneNfcVUnlockStateNotSupportedCard) {
+            popup_reset(popup);
+            popup_set_header(popup, "Wrong Type Of Card!", 64, 3, AlignCenter, AlignTop);
+            popup_set_text(popup, nfcv_data->error, 4, 22, AlignLeft, AlignTop);
+            popup_set_icon(popup, 73, 20, &I_DolphinCommon_56x48);
+        }
+        scene_manager_set_scene_state(nfc->scene_manager, NfcSceneNfcVUnlock, state);
+    }
+}
+
+void nfc_scene_nfcv_unlock_on_enter(void* context) {
+    Nfc* nfc = context;
+
+    nfc_device_clear(nfc->dev);
+    // Setup view
+    nfc_scene_nfcv_unlock_set_state(nfc, NfcSceneNfcVUnlockStateDetecting);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+
+    // Start worker
+    nfc_worker_start(
+        nfc->worker,
+        NfcWorkerStateNfcVUnlockAndSave,
+        &nfc->dev->dev_data,
+        nfc_scene_nfcv_unlock_worker_callback,
+        nfc);
+
+    nfc_blink_read_start(nfc);
+}
+
+bool nfc_scene_nfcv_unlock_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcWorkerEventCardDetected) {
+            nfc_scene_nfcv_unlock_set_state(nfc, NfcSceneNfcVUnlockStateUnlocked);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventAborted) {
+            nfc_scene_nfcv_unlock_set_state(nfc, NfcSceneNfcVUnlockStateAlreadyUnlocked);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventNoCardDetected) {
+            nfc_scene_nfcv_unlock_set_state(nfc, NfcSceneNfcVUnlockStateDetecting);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventWrongCardDetected) {
+            nfc_scene_nfcv_unlock_set_state(nfc, NfcSceneNfcVUnlockStateNotSupportedCard);
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        consumed = scene_manager_search_and_switch_to_previous_scene(
+            nfc->scene_manager, NfcSceneNfcVUnlockMenu);
+    }
+    return consumed;
+}
+
+void nfc_scene_nfcv_unlock_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    // Stop worker
+    nfc_worker_stop(nfc->worker);
+    // Clear view
+    popup_reset(nfc->popup);
+    nfc_blink_stop(nfc);
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneNfcVUnlock, NfcSceneNfcVUnlockStateIdle);
+}

applications/main/nfc/scenes/nfc_scene_nfcv_unlock_menu.c

@@ -0,0 +1,60 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+enum SubmenuIndex {
+    SubmenuIndexNfcVUnlockMenuManual,
+    SubmenuIndexNfcVUnlockMenuTonieBox,
+};
+
+void nfc_scene_nfcv_unlock_menu_submenu_callback(void* context, uint32_t index) {
+    Nfc* nfc = context;
+
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, index);
+}
+
+void nfc_scene_nfcv_unlock_menu_on_enter(void* context) {
+    Nfc* nfc = context;
+    Submenu* submenu = nfc->submenu;
+
+    uint32_t state = scene_manager_get_scene_state(nfc->scene_manager, NfcSceneNfcVUnlockMenu);
+    submenu_add_item(
+        submenu,
+        "Enter PWD Manually",
+        SubmenuIndexNfcVUnlockMenuManual,
+        nfc_scene_nfcv_unlock_menu_submenu_callback,
+        nfc);
+    submenu_add_item(
+        submenu,
+        "Auth As TonieBox",
+        SubmenuIndexNfcVUnlockMenuTonieBox,
+        nfc_scene_nfcv_unlock_menu_submenu_callback,
+        nfc);
+    submenu_set_selected_item(submenu, state);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewMenu);
+}
+
+bool nfc_scene_nfcv_unlock_menu_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == SubmenuIndexNfcVUnlockMenuManual) {
+            nfc->dev->dev_data.nfcv_data.auth_method = NfcVAuthMethodManual;
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVKeyInput);
+            consumed = true;
+        } else if(event.event == SubmenuIndexNfcVUnlockMenuTonieBox) {
+            nfc->dev->dev_data.nfcv_data.auth_method = NfcVAuthMethodTonieBox;
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVUnlock);
+            DOLPHIN_DEED(DolphinDeedNfcRead);
+            consumed = true;
+        }
+        scene_manager_set_scene_state(nfc->scene_manager, NfcSceneNfcVUnlockMenu, event.event);
+    }
+    return consumed;
+}
+
+void nfc_scene_nfcv_unlock_menu_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    submenu_reset(nfc->submenu);
+}

applications/main/nfc/scenes/nfc_scene_read.c

@@ -68,6 +68,11 @@ bool nfc_scene_read_on_event(void* context, SceneManagerEvent event) {
             scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcaReadSuccess);
             DOLPHIN_DEED(DolphinDeedNfcReadSuccess);
             consumed = true;
+        } else if(event.event == NfcWorkerEventReadNfcV) {
+            notification_message(nfc->notifications, &sequence_success);
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVReadSuccess);
+            DOLPHIN_DEED(DolphinDeedNfcReadSuccess);
+            consumed = true;
         } else if(event.event == NfcWorkerEventReadMfUltralight) {
             notification_message(nfc->notifications, &sequence_success);
             // Set unlock password input to 0xFFFFFFFF only on fresh read

applications/main/nfc/scenes/nfc_scene_rpc.c

@@ -55,6 +55,13 @@ bool nfc_scene_rpc_on_event(void* context, SceneManagerEvent event) {
                             &nfc->dev->dev_data,
                             nfc_scene_rpc_emulate_callback,
                             nfc);
+                    } else if(nfc->dev->format == NfcDeviceSaveFormatNfcV) {
+                        nfc_worker_start(
+                            nfc->worker,
+                            NfcWorkerStateNfcVEmulate,
+                            &nfc->dev->dev_data,
+                            nfc_scene_rpc_emulate_callback,
+                            nfc);
                     } else {
                         nfc_worker_start(
                             nfc->worker, NfcWorkerStateUidEmulate, &nfc->dev->dev_data, NULL, nfc);

applications/main/nfc/scenes/nfc_scene_saved_menu.c

@@ -44,6 +44,7 @@ void nfc_scene_saved_menu_on_enter(void* context) {
     } else if(
         (nfc->dev->format == NfcDeviceSaveFormatMifareUl &&
          mf_ul_emulation_supported(&nfc->dev->dev_data.mf_ul_data)) ||
+        nfc->dev->format == NfcDeviceSaveFormatNfcV ||
         nfc->dev->format == NfcDeviceSaveFormatMifareClassic) {
         submenu_add_item(
             submenu, "Emulate", SubmenuIndexEmulate, nfc_scene_saved_menu_submenu_callback, nfc);
@@ -118,6 +119,8 @@ bool nfc_scene_saved_menu_on_event(void* context, SceneManagerEvent event) {
                 scene_manager_next_scene(nfc->scene_manager, NfcSceneMfUltralightEmulate);
             } else if(nfc->dev->format == NfcDeviceSaveFormatMifareClassic) {
                 scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicEmulate);
+            } else if(nfc->dev->format == NfcDeviceSaveFormatNfcV) {
+                scene_manager_next_scene(nfc->scene_manager, NfcSceneNfcVEmulate);
             } else {
                 scene_manager_next_scene(nfc->scene_manager, NfcSceneEmulateUid);
             }

firmware/targets/f7/api_symbols.csv

@@ -2090,6 +2090,14 @@ Function,-,nfca_get_crc16,uint16_t,"uint8_t*, uint16_t"
 Function,-,nfca_signal_alloc,NfcaSignal*,
 Function,-,nfca_signal_encode,void,"NfcaSignal*, uint8_t*, uint16_t, uint8_t*"
 Function,-,nfca_signal_free,void,NfcaSignal*
+Function,+,nfcv_emu_deinit,void,NfcVData*
+Function,+,nfcv_emu_init,void,"FuriHalNfcDevData*, NfcVData*"
+Function,+,nfcv_emu_loop,_Bool,"FuriHalNfcTxRxContext*, FuriHalNfcDevData*, NfcVData*, uint32_t"
+Function,+,nfcv_emu_send,void,"FuriHalNfcTxRxContext*, NfcVData*, uint8_t*, uint8_t, NfcVSendFlags, uint32_t"
+Function,-,nfcv_inventory,ReturnCode,uint8_t*
+Function,-,nfcv_read_blocks,ReturnCode,"NfcVReader*, NfcVData*"
+Function,-,nfcv_read_card,_Bool,"NfcVReader*, FuriHalNfcDevData*, NfcVData*"
+Function,-,nfcv_read_sysinfo,ReturnCode,"FuriHalNfcDevData*, NfcVData*"
 Function,+,notification_internal_message,void,"NotificationApp*, const NotificationSequence*"
 Function,+,notification_internal_message_block,void,"NotificationApp*, const NotificationSequence*"
 Function,+,notification_message,void,"NotificationApp*, const NotificationSequence*"

lib/digital_signal/digital_signal.c

@@ -9,7 +9,7 @@
 #include <stm32wbxx_ll_tim.h>
 
 /* must be on bank B */
-#define DEBUG_OUTPUT gpio_ext_pb3
+// For debugging purposes use `--extra-define=DIGITAL_SIGNAL_DEBUG_OUTPUT_PIN=gpio_ext_pb3` fbt option
 
 struct ReloadBuffer {
     uint32_t* buffer; /* DMA ringbuffer */
@@ -194,9 +194,9 @@ void digital_signal_prepare_arr(DigitalSignal* signal) {
         uint32_t bit_set = internals->gpio->pin;
         uint32_t bit_reset = internals->gpio->pin << 16;
 
-#ifdef DEBUG_OUTPUT
+#ifdef DIGITAL_SIGNAL_DEBUG_OUTPUT_PIN
-        bit_set |= DEBUG_OUTPUT.pin;
+        bit_set |= DIGITAL_SIGNAL_DEBUG_OUTPUT_PIN.pin;
-        bit_reset |= DEBUG_OUTPUT.pin << 16;
+        bit_reset |= DIGITAL_SIGNAL_DEBUG_OUTPUT_PIN.pin << 16;
 #endif
 
         if(signal->start_level) {
@@ -540,8 +540,9 @@ bool digital_sequence_send(DigitalSequence* sequence) {
     struct ReloadBuffer* dma_buffer = sequence->dma_buffer;
 
     furi_hal_gpio_init(sequence->gpio, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
-#ifdef DEBUG_OUTPUT
+#ifdef DIGITAL_SIGNAL_DEBUG_OUTPUT_PIN
-    furi_hal_gpio_init(&DEBUG_OUTPUT, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
+    furi_hal_gpio_init(
+        &DIGITAL_SIGNAL_DEBUG_OUTPUT_PIN, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
 #endif
 
     if(sequence->bake) {

lib/nfc/nfc_device.c

@@ -58,6 +58,8 @@ static void nfc_device_prepare_format_string(NfcDevice* dev, FuriString* format_
         furi_string_set(format_string, "Mifare Classic");
     } else if(dev->format == NfcDeviceSaveFormatMifareDesfire) {
         furi_string_set(format_string, "Mifare DESFire");
+    } else if(dev->format == NfcDeviceSaveFormatNfcV) {
+        furi_string_set(format_string, "ISO15693");
     } else {
         furi_string_set(format_string, "Unknown");
     }
@@ -93,6 +95,11 @@ static bool nfc_device_parse_format_string(NfcDevice* dev, FuriString* format_st
         dev->dev_data.protocol = NfcDeviceProtocolMifareDesfire;
         return true;
     }
+    if(furi_string_start_with_str(format_string, "ISO15693")) {
+        dev->format = NfcDeviceSaveFormatNfcV;
+        dev->dev_data.protocol = NfcDeviceProtocolNfcV;
+        return true;
+    }
     return false;
 }
 
@@ -650,7 +657,327 @@ bool nfc_device_load_mifare_df_data(FlipperFormat* file, NfcDevice* dev) {
     return parsed;
 }
 
-// Leave for backward compatibility
+static bool nfc_device_save_slix_data(FlipperFormat* file, NfcDevice* dev) {
+    bool saved = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+
+    do {
+        if(!flipper_format_write_comment_cstr(file, "SLIX specific data")) break;
+        if(!flipper_format_write_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+        saved = true;
+    } while(false);
+
+    return saved;
+}
+
+bool nfc_device_load_slix_data(FlipperFormat* file, NfcDevice* dev) {
+    bool parsed = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+    memset(data, 0, sizeof(NfcVSlixData));
+
+    do {
+        if(!flipper_format_read_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+
+        parsed = true;
+    } while(false);
+
+    return parsed;
+}
+
+static bool nfc_device_save_slix_s_data(FlipperFormat* file, NfcDevice* dev) {
+    bool saved = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+
+    do {
+        if(!flipper_format_write_comment_cstr(file, "SLIX-S specific data")) break;
+        if(!flipper_format_write_hex(file, "Password Read", data->key_read, sizeof(data->key_read)))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Password Write", data->key_write, sizeof(data->key_write)))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Password Privacy", data->key_privacy, sizeof(data->key_privacy)))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Password Destroy", data->key_destroy, sizeof(data->key_destroy)))
+            break;
+        if(!flipper_format_write_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+        if(!flipper_format_write_bool(file, "Privacy Mode", &data->privacy, 1)) break;
+        saved = true;
+    } while(false);
+
+    return saved;
+}
+
+bool nfc_device_load_slix_s_data(FlipperFormat* file, NfcDevice* dev) {
+    bool parsed = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+    memset(data, 0, sizeof(NfcVSlixData));
+
+    do {
+        if(!flipper_format_read_hex(file, "Password Read", data->key_read, sizeof(data->key_read)))
+            break;
+        if(!flipper_format_read_hex(
+               file, "Password Write", data->key_write, sizeof(data->key_write)))
+            break;
+        if(!flipper_format_read_hex(
+               file, "Password Privacy", data->key_privacy, sizeof(data->key_privacy)))
+            break;
+        if(!flipper_format_read_hex(
+               file, "Password Destroy", data->key_destroy, sizeof(data->key_destroy)))
+            break;
+        if(!flipper_format_read_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+        if(!flipper_format_read_bool(file, "Privacy Mode", &data->privacy, 1)) break;
+
+        parsed = true;
+    } while(false);
+
+    return parsed;
+}
+
+static bool nfc_device_save_slix_l_data(FlipperFormat* file, NfcDevice* dev) {
+    bool saved = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+
+    do {
+        if(!flipper_format_write_comment_cstr(file, "SLIX-L specific data")) break;
+        if(!flipper_format_write_hex(
+               file, "Password Privacy", data->key_privacy, sizeof(data->key_privacy)))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Password Destroy", data->key_destroy, sizeof(data->key_destroy)))
+            break;
+        if(!flipper_format_write_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+        if(!flipper_format_write_bool(file, "Privacy Mode", &data->privacy, 1)) break;
+        saved = true;
+    } while(false);
+
+    return saved;
+}
+
+bool nfc_device_load_slix_l_data(FlipperFormat* file, NfcDevice* dev) {
+    bool parsed = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+    memset(data, 0, sizeof(NfcVSlixData));
+
+    do {
+        if(!flipper_format_read_hex(
+               file, "Password Privacy", data->key_privacy, sizeof(data->key_privacy)))
+            break;
+        if(!flipper_format_read_hex(
+               file, "Password Destroy", data->key_destroy, sizeof(data->key_destroy)))
+            break;
+        if(!flipper_format_read_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+        if(!flipper_format_read_bool(file, "Privacy Mode", &data->privacy, 1)) break;
+
+        parsed = true;
+    } while(false);
+
+    return parsed;
+}
+
+static bool nfc_device_save_slix2_data(FlipperFormat* file, NfcDevice* dev) {
+    bool saved = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+
+    do {
+        if(!flipper_format_write_comment_cstr(file, "SLIX2 specific data")) break;
+        if(!flipper_format_write_hex(file, "Password Read", data->key_read, sizeof(data->key_read)))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Password Write", data->key_write, sizeof(data->key_write)))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Password Privacy", data->key_privacy, sizeof(data->key_privacy)))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Password Destroy", data->key_destroy, sizeof(data->key_destroy)))
+            break;
+        if(!flipper_format_write_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+        if(!flipper_format_write_bool(file, "Privacy Mode", &data->privacy, 1)) break;
+        saved = true;
+    } while(false);
+
+    return saved;
+}
+
+bool nfc_device_load_slix2_data(FlipperFormat* file, NfcDevice* dev) {
+    bool parsed = false;
+    NfcVSlixData* data = &dev->dev_data.nfcv_data.sub_data.slix;
+    memset(data, 0, sizeof(NfcVSlixData));
+
+    do {
+        if(!flipper_format_read_hex(file, "Password Read", data->key_read, sizeof(data->key_read)))
+            break;
+        if(!flipper_format_read_hex(
+               file, "Password Write", data->key_write, sizeof(data->key_write)))
+            break;
+        if(!flipper_format_read_hex(
+               file, "Password Privacy", data->key_privacy, sizeof(data->key_privacy)))
+            break;
+        if(!flipper_format_read_hex(
+               file, "Password Destroy", data->key_destroy, sizeof(data->key_destroy)))
+            break;
+        if(!flipper_format_read_hex(file, "Password EAS", data->key_eas, sizeof(data->key_eas)))
+            break;
+        if(!flipper_format_read_bool(file, "Privacy Mode", &data->privacy, 1)) break;
+
+        parsed = true;
+    } while(false);
+
+    return parsed;
+}
+
+static bool nfc_device_save_nfcv_data(FlipperFormat* file, NfcDevice* dev) {
+    bool saved = false;
+    NfcVData* data = &dev->dev_data.nfcv_data;
+
+    do {
+        uint32_t temp_uint32 = 0;
+        uint8_t temp_uint8 = 0;
+
+        if(!flipper_format_write_comment_cstr(file, "Data Storage Format Identifier")) break;
+        if(!flipper_format_write_hex(file, "DSFID", &(data->dsfid), 1)) break;
+        if(!flipper_format_write_comment_cstr(file, "Application Family Identifier")) break;
+        if(!flipper_format_write_hex(file, "AFI", &(data->afi), 1)) break;
+        if(!flipper_format_write_hex(file, "IC Reference", &(data->ic_ref), 1)) break;
+        temp_uint32 = data->block_num;
+        if(!flipper_format_write_comment_cstr(file, "Number of memory blocks, usually 0 to 256"))
+            break;
+        if(!flipper_format_write_uint32(file, "Block Count", &temp_uint32, 1)) break;
+        if(!flipper_format_write_comment_cstr(file, "Size of a single memory block, usually 4"))
+            break;
+        if(!flipper_format_write_hex(file, "Block Size", &(data->block_size), 1)) break;
+        if(!flipper_format_write_hex(
+               file, "Data Content", data->data, data->block_num * data->block_size))
+            break;
+        if(!flipper_format_write_comment_cstr(
+               file, "First byte: DSFID (0x01) / AFI (0x02) lock info, others: block lock info"))
+            break;
+        if(!flipper_format_write_hex(
+               file, "Security Status", data->security_status, 1 + data->block_num))
+            break;
+        if(!flipper_format_write_comment_cstr(
+               file,
+               "Subtype of this card (0 = ISO15693, 1 = SLIX, 2 = SLIX-S, 3 = SLIX-L, 4 = SLIX2)"))
+            break;
+        temp_uint8 = (uint8_t)data->sub_type;
+        if(!flipper_format_write_hex(file, "Subtype", &temp_uint8, 1)) break;
+
+        switch(data->sub_type) {
+        case NfcVTypePlain:
+            if(!flipper_format_write_comment_cstr(file, "End of ISO15693 parameters")) break;
+            saved = true;
+            break;
+        case NfcVTypeSlix:
+            saved = nfc_device_save_slix_data(file, dev);
+            break;
+        case NfcVTypeSlixS:
+            saved = nfc_device_save_slix_s_data(file, dev);
+            break;
+        case NfcVTypeSlixL:
+            saved = nfc_device_save_slix_l_data(file, dev);
+            break;
+        case NfcVTypeSlix2:
+            saved = nfc_device_save_slix2_data(file, dev);
+            break;
+        default:
+            break;
+        }
+    } while(false);
+
+    return saved;
+}
+
+bool nfc_device_load_nfcv_data(FlipperFormat* file, NfcDevice* dev) {
+    bool parsed = false;
+    NfcVData* data = &dev->dev_data.nfcv_data;
+
+    memset(data, 0x00, sizeof(NfcVData));
+
+    do {
+        uint32_t temp_uint32 = 0;
+        uint8_t temp_value = 0;
+
+        if(!flipper_format_read_hex(file, "DSFID", &(data->dsfid), 1)) break;
+        if(!flipper_format_read_hex(file, "AFI", &(data->afi), 1)) break;
+        if(!flipper_format_read_hex(file, "IC Reference", &(data->ic_ref), 1)) break;
+        if(!flipper_format_read_uint32(file, "Block Count", &temp_uint32, 1)) break;
+        data->block_num = temp_uint32;
+        if(!flipper_format_read_hex(file, "Block Size", &(data->block_size), 1)) break;
+        if(!flipper_format_read_hex(
+               file, "Data Content", data->data, data->block_num * data->block_size))
+            break;
+
+        /* optional, as added later */
+        if(flipper_format_key_exist(file, "Security Status")) {
+            if(!flipper_format_read_hex(
+                   file, "Security Status", data->security_status, 1 + data->block_num))
+                break;
+        }
+        if(!flipper_format_read_hex(file, "Subtype", &temp_value, 1)) break;
+        data->sub_type = temp_value;
+
+        switch(data->sub_type) {
+        case NfcVTypePlain:
+            parsed = true;
+            break;
+        case NfcVTypeSlix:
+            parsed = nfc_device_load_slix_data(file, dev);
+            break;
+        case NfcVTypeSlixS:
+            parsed = nfc_device_load_slix_s_data(file, dev);
+            break;
+        case NfcVTypeSlixL:
+            parsed = nfc_device_load_slix_l_data(file, dev);
+            break;
+        case NfcVTypeSlix2:
+            parsed = nfc_device_load_slix2_data(file, dev);
+            break;
+        default:
+            break;
+        }
+    } while(false);
+
+    return parsed;
+}
+
+static bool nfc_device_save_bank_card_data(FlipperFormat* file, NfcDevice* dev) {
+    bool saved = false;
+    EmvData* data = &dev->dev_data.emv_data;
+    uint32_t data_temp = 0;
+
+    do {
+        // Write Bank card specific data
+        if(!flipper_format_write_comment_cstr(file, "Bank card specific data")) break;
+        if(!flipper_format_write_hex(file, "AID", data->aid, data->aid_len)) break;
+        if(!flipper_format_write_string_cstr(file, "Name", data->name)) break;
+        if(!flipper_format_write_hex(file, "Number", data->number, data->number_len)) break;
+        if(data->exp_mon) {
+            uint8_t exp_data[2] = {data->exp_mon, data->exp_year};
+            if(!flipper_format_write_hex(file, "Exp data", exp_data, sizeof(exp_data))) break;
+        }
+        if(data->country_code) {
+            data_temp = data->country_code;
+            if(!flipper_format_write_uint32(file, "Country code", &data_temp, 1)) break;
+        }
+        if(data->currency_code) {
+            data_temp = data->currency_code;
+            if(!flipper_format_write_uint32(file, "Currency code", &data_temp, 1)) break;
+        }
+        saved = true;
+    } while(false);
+
+    return saved;
+}
+
 bool nfc_device_load_bank_card_data(FlipperFormat* file, NfcDevice* dev) {
     bool parsed = false;
     EmvData* data = &dev->dev_data.emv_data;
@@ -1069,23 +1396,32 @@ bool nfc_device_save(NfcDevice* dev, const char* dev_name) {
         if(!flipper_format_write_header_cstr(file, nfc_file_header, nfc_file_version)) break;
         // Write nfc device type
         if(!flipper_format_write_comment_cstr(
-               file, "Nfc device type can be UID, Mifare Ultralight, Mifare Classic"))
+               file, "Nfc device type can be UID, Mifare Ultralight, Mifare Classic or ISO15693"))
             break;
         nfc_device_prepare_format_string(dev, temp_str);
         if(!flipper_format_write_string(file, "Device type", temp_str)) break;
-        // Write UID, ATQA, SAK
+        // Write UID
-        if(!flipper_format_write_comment_cstr(file, "UID, ATQA and SAK are common for all formats"))
+        if(!flipper_format_write_comment_cstr(file, "UID is common for all formats")) break;
-            break;
         if(!flipper_format_write_hex(file, "UID", data->uid, data->uid_len)) break;
-        // Save ATQA in MSB order for correct companion apps display
+
-        uint8_t atqa[2] = {data->atqa[1], data->atqa[0]};
+        if(dev->format != NfcDeviceSaveFormatNfcV) {
-        if(!flipper_format_write_hex(file, "ATQA", atqa, 2)) break;
+            // Write ATQA, SAK
-        if(!flipper_format_write_hex(file, "SAK", &data->sak, 1)) break;
+            if(!flipper_format_write_comment_cstr(file, "ISO14443 specific fields")) break;
+            // Save ATQA in MSB order for correct companion apps display
+            uint8_t atqa[2] = {data->atqa[1], data->atqa[0]};
+            if(!flipper_format_write_hex(file, "ATQA", atqa, 2)) break;
+            if(!flipper_format_write_hex(file, "SAK", &data->sak, 1)) break;
+        }
+
         // Save more data if necessary
         if(dev->format == NfcDeviceSaveFormatMifareUl) {
             if(!nfc_device_save_mifare_ul_data(file, dev)) break;
         } else if(dev->format == NfcDeviceSaveFormatMifareDesfire) {
             if(!nfc_device_save_mifare_df_data(file, dev)) break;
+        } else if(dev->format == NfcDeviceSaveFormatNfcV) {
+            if(!nfc_device_save_nfcv_data(file, dev)) break;
+        } else if(dev->format == NfcDeviceSaveFormatBankCard) {
+            if(!nfc_device_save_bank_card_data(file, dev)) break;
         } else if(dev->format == NfcDeviceSaveFormatMifareClassic) {
             // Save data
             if(!nfc_device_save_mifare_classic_data(file, dev)) break;
@@ -1160,18 +1496,20 @@ static bool nfc_device_load_data(NfcDevice* dev, FuriString* path, bool show_dia
         if(!nfc_device_parse_format_string(dev, temp_str)) break;
         // Read and parse UID, ATQA and SAK
         if(!flipper_format_get_value_count(file, "UID", &data_cnt)) break;
-        if(!(data_cnt == 4 || data_cnt == 7)) break;
+        if(!(data_cnt == 4 || data_cnt == 7 || data_cnt == 8)) break;
         data->uid_len = data_cnt;
         if(!flipper_format_read_hex(file, "UID", data->uid, data->uid_len)) break;
-        if(version == version_with_lsb_atqa) {
+        if(dev->format != NfcDeviceSaveFormatNfcV) {
-            if(!flipper_format_read_hex(file, "ATQA", data->atqa, 2)) break;
+            if(version == version_with_lsb_atqa) {
-        } else {
+                if(!flipper_format_read_hex(file, "ATQA", data->atqa, 2)) break;
-            uint8_t atqa[2] = {};
+            } else {
-            if(!flipper_format_read_hex(file, "ATQA", atqa, 2)) break;
+                uint8_t atqa[2] = {};
-            data->atqa[0] = atqa[1];
+                if(!flipper_format_read_hex(file, "ATQA", atqa, 2)) break;
-            data->atqa[1] = atqa[0];
+                data->atqa[0] = atqa[1];
+                data->atqa[1] = atqa[0];
+            }
+            if(!flipper_format_read_hex(file, "SAK", &data->sak, 1)) break;
         }
-        if(!flipper_format_read_hex(file, "SAK", &data->sak, 1)) break;
         // Load CUID
         uint8_t* cuid_start = data->uid;
         if(data->uid_len == 7) {
@@ -1186,6 +1524,8 @@ static bool nfc_device_load_data(NfcDevice* dev, FuriString* path, bool show_dia
             if(!nfc_device_load_mifare_classic_data(file, dev)) break;
         } else if(dev->format == NfcDeviceSaveFormatMifareDesfire) {
             if(!nfc_device_load_mifare_df_data(file, dev)) break;
+        } else if(dev->format == NfcDeviceSaveFormatNfcV) {
+            if(!nfc_device_load_nfcv_data(file, dev)) break;
         } else if(dev->format == NfcDeviceSaveFormatBankCard) {
             if(!nfc_device_load_bank_card_data(file, dev)) break;
         }

lib/nfc/nfc_device.h

@@ -11,6 +11,7 @@
 #include <lib/nfc/protocols/mifare_ultralight.h>
 #include <lib/nfc/protocols/mifare_classic.h>
 #include <lib/nfc/protocols/mifare_desfire.h>
+#include <lib/nfc/protocols/nfcv.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -31,6 +32,7 @@ typedef enum {
     NfcDeviceProtocolMifareUl,
     NfcDeviceProtocolMifareClassic,
     NfcDeviceProtocolMifareDesfire,
+    NfcDeviceProtocolNfcV
 } NfcProtocol;
 
 typedef enum {
@@ -39,6 +41,7 @@ typedef enum {
     NfcDeviceSaveFormatMifareUl,
     NfcDeviceSaveFormatMifareClassic,
     NfcDeviceSaveFormatMifareDesfire,
+    NfcDeviceSaveFormatNfcV,
 } NfcDeviceSaveFormat;
 
 typedef struct {
@@ -73,6 +76,7 @@ typedef struct {
         MfUltralightData mf_ul_data;
         MfClassicData mf_classic_data;
         MifareDesfireData mf_df_data;
+        NfcVData nfcv_data;
     };
     FuriString* parsed_data;
 } NfcDeviceData;

lib/nfc/nfc_worker.c

@@ -111,6 +111,14 @@ int32_t nfc_worker_task(void* context) {
         nfc_worker_mf_classic_dict_attack(nfc_worker);
     } else if(nfc_worker->state == NfcWorkerStateAnalyzeReader) {
         nfc_worker_analyze_reader(nfc_worker);
+    } else if(nfc_worker->state == NfcWorkerStateNfcVEmulate) {
+        nfc_worker_nfcv_emulate(nfc_worker);
+    } else if(nfc_worker->state == NfcWorkerStateNfcVSniff) {
+        nfc_worker_nfcv_sniff(nfc_worker);
+    } else if(nfc_worker->state == NfcWorkerStateNfcVUnlock) {
+        nfc_worker_nfcv_unlock(nfc_worker);
+    } else if(nfc_worker->state == NfcWorkerStateNfcVUnlockAndSave) {
+        nfc_worker_nfcv_unlock(nfc_worker);
     }
     furi_hal_nfc_sleep();
     nfc_worker_change_state(nfc_worker, NfcWorkerStateReady);
@@ -118,6 +126,236 @@ int32_t nfc_worker_task(void* context) {
     return 0;
 }
 
+static bool nfc_worker_read_nfcv(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
+    bool read_success = false;
+    NfcVReader reader = {};
+
+    FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
+    NfcVData* nfcv_data = &nfc_worker->dev_data->nfcv_data;
+
+    furi_hal_nfc_sleep();
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, tx_rx, false);
+        reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
+    }
+
+    do {
+        if(!furi_hal_nfc_detect(&nfc_worker->dev_data->nfc_data, 200)) break;
+        if(!nfcv_read_card(&reader, nfc_data, nfcv_data)) break;
+
+        read_success = true;
+    } while(false);
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_stop(nfc_worker->reader_analyzer);
+    }
+
+    return read_success;
+}
+
+void nfc_worker_nfcv_emulate(NfcWorker* nfc_worker) {
+    FuriHalNfcTxRxContext tx_rx = {};
+    FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
+    NfcVData* nfcv_data = &nfc_worker->dev_data->nfcv_data;
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, &tx_rx, true);
+        reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
+    }
+
+    nfcv_emu_init(nfc_data, nfcv_data);
+    while(nfc_worker->state == NfcWorkerStateNfcVEmulate) {
+        if(nfcv_emu_loop(&tx_rx, nfc_data, nfcv_data, 100)) {
+            if(nfc_worker->callback) {
+                nfc_worker->callback(NfcWorkerEventNfcVCommandExecuted, nfc_worker->context);
+                if(nfcv_data->modified) {
+                    nfc_worker->callback(NfcWorkerEventNfcVContentChanged, nfc_worker->context);
+                    nfcv_data->modified = false;
+                }
+            }
+        }
+    }
+    nfcv_emu_deinit(nfcv_data);
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_stop(nfc_worker->reader_analyzer);
+    }
+}
+
+void nfc_worker_nfcv_sniff(NfcWorker* nfc_worker) {
+    FuriHalNfcTxRxContext tx_rx = {};
+    FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
+    NfcVData* nfcv_data = &nfc_worker->dev_data->nfcv_data;
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, &tx_rx, true);
+        reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
+    }
+
+    nfcv_data->sub_type = NfcVTypeSniff;
+    nfcv_emu_init(nfc_data, nfcv_data);
+
+    while(nfc_worker->state == NfcWorkerStateNfcVSniff) {
+        if(nfcv_emu_loop(&tx_rx, nfc_data, nfcv_data, 100)) {
+            if(nfc_worker->callback) {
+                nfc_worker->callback(NfcWorkerEventNfcVCommandExecuted, nfc_worker->context);
+            }
+        }
+    }
+    nfcv_emu_deinit(nfcv_data);
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_stop(nfc_worker->reader_analyzer);
+    }
+}
+
+void nfc_worker_nfcv_unlock(NfcWorker* nfc_worker) {
+    furi_assert(nfc_worker);
+    furi_assert(nfc_worker->callback);
+
+    NfcVData* nfcv_data = &nfc_worker->dev_data->nfcv_data;
+    FuriHalNfcTxRxContext tx_rx = {};
+    uint8_t* key_data = nfcv_data->sub_data.slix.key_privacy;
+    uint32_t key = 0;
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, &tx_rx, true);
+        reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
+    }
+
+    furi_hal_nfc_sleep();
+
+    while((nfc_worker->state == NfcWorkerStateNfcVUnlock) ||
+          (nfc_worker->state == NfcWorkerStateNfcVUnlockAndSave)) {
+        furi_hal_nfc_exit_sleep();
+        furi_hal_nfc_ll_txrx_on();
+        furi_hal_nfc_ll_poll();
+        if(furi_hal_nfc_ll_set_mode(
+               FuriHalNfcModePollNfcv, FuriHalNfcBitrate26p48, FuriHalNfcBitrate26p48) !=
+           FuriHalNfcReturnOk) {
+            break;
+        }
+
+        furi_hal_nfc_ll_set_fdt_listen(FURI_HAL_NFC_LL_FDT_LISTEN_NFCV_POLLER);
+        furi_hal_nfc_ll_set_fdt_poll(FURI_HAL_NFC_LL_FDT_POLL_NFCV_POLLER);
+        furi_hal_nfc_ll_set_error_handling(FuriHalNfcErrorHandlingNfc);
+        furi_hal_nfc_ll_set_guard_time(FURI_HAL_NFC_LL_GT_NFCV);
+
+        FURI_LOG_D(TAG, "Detect presence");
+        ReturnCode ret = slix_get_random(nfcv_data);
+
+        if(ret == ERR_NONE) {
+            /* there is some chip, responding with a RAND */
+            nfc_worker->dev_data->protocol = NfcDeviceProtocolNfcV;
+            FURI_LOG_D(TAG, "  Chip detected. In privacy?");
+            ret = nfcv_inventory(NULL);
+
+            if(ret == ERR_NONE) {
+                /* chip is also visible, so no action required, just save */
+                if(nfc_worker->state == NfcWorkerStateNfcVUnlockAndSave) {
+                    NfcVReader reader = {};
+
+                    if(!nfcv_read_card(&reader, &nfc_worker->dev_data->nfc_data, nfcv_data)) {
+                        FURI_LOG_D(TAG, "    => failed, wait for chip to disappear.");
+                        snprintf(nfcv_data->error, sizeof(nfcv_data->error), "Read card\nfailed");
+                        nfc_worker->callback(NfcWorkerEventWrongCardDetected, nfc_worker->context);
+                    } else {
+                        FURI_LOG_D(TAG, "    => success, wait for chip to disappear.");
+                        nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
+                    }
+                } else {
+                    FURI_LOG_D(TAG, "    => success, wait for chip to disappear.");
+                    nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
+                }
+
+                while(slix_get_random(NULL) == ERR_NONE) {
+                    furi_delay_ms(100);
+                }
+
+                FURI_LOG_D(TAG, "    => chip is already visible, wait for chip to disappear.\r\n");
+                nfc_worker->callback(NfcWorkerEventAborted, nfc_worker->context);
+                while(slix_get_random(NULL) == ERR_NONE) {
+                    furi_delay_ms(100);
+                }
+
+                key_data[0] = 0;
+                key_data[1] = 0;
+                key_data[2] = 0;
+                key_data[3] = 0;
+
+            } else {
+                /* chip is invisible, try to unlock */
+                FURI_LOG_D(TAG, "    chip is invisible, unlocking");
+
+                if(nfcv_data->auth_method == NfcVAuthMethodManual) {
+                    key |= key_data[0] << 24;
+                    key |= key_data[1] << 16;
+                    key |= key_data[2] << 8;
+                    key |= key_data[3] << 0;
+
+                    ret = slix_unlock(nfcv_data, 4);
+                } else {
+                    key = 0x7FFD6E5B;
+                    key_data[0] = key >> 24;
+                    key_data[1] = key >> 16;
+                    key_data[2] = key >> 8;
+                    key_data[3] = key >> 0;
+                    ret = slix_unlock(nfcv_data, 4);
+
+                    if(ret != ERR_NONE) {
+                        /* main key failed, trying second one */
+                        FURI_LOG_D(TAG, "    trying second key after resetting");
+
+                        /* reset chip */
+                        furi_hal_nfc_ll_txrx_off();
+                        furi_delay_ms(20);
+                        furi_hal_nfc_ll_txrx_on();
+
+                        if(slix_get_random(nfcv_data) != ERR_NONE) {
+                            FURI_LOG_D(TAG, "    reset failed");
+                        }
+
+                        key = 0x0F0F0F0F;
+                        key_data[0] = key >> 24;
+                        key_data[1] = key >> 16;
+                        key_data[2] = key >> 8;
+                        key_data[3] = key >> 0;
+                        ret = slix_unlock(nfcv_data, 4);
+                    }
+                }
+                if(ret != ERR_NONE) {
+                    /* unlock failed */
+                    FURI_LOG_D(TAG, "    => failed, wait for chip to disappear.");
+                    snprintf(
+                        nfcv_data->error, sizeof(nfcv_data->error), "Passwords not\naccepted");
+                    nfc_worker->callback(NfcWorkerEventWrongCardDetected, nfc_worker->context);
+
+                    /* reset chip */
+                    furi_hal_nfc_ll_txrx_off();
+                    furi_delay_ms(20);
+                    furi_hal_nfc_ll_txrx_on();
+
+                    /* wait for disappearing */
+                    while(slix_get_random(NULL) == ERR_NONE) {
+                        furi_delay_ms(100);
+                    }
+                }
+            }
+        } else {
+            nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
+        }
+
+        furi_hal_nfc_ll_txrx_off();
+        furi_hal_nfc_sleep();
+        furi_delay_ms(100);
+    }
+
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        reader_analyzer_stop(nfc_worker->reader_analyzer);
+    }
+}
+
 static bool nfc_worker_read_mf_ultralight(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
     bool read_success = false;
     MfUltralightReader reader = {};
@@ -317,7 +555,12 @@ void nfc_worker_read(NfcWorker* nfc_worker) {
                 event = NfcWorkerEventReadUidNfcF;
                 break;
             } else if(nfc_data->type == FuriHalNfcTypeV) {
-                event = NfcWorkerEventReadUidNfcV;
+                FURI_LOG_I(TAG, "NfcV detected");
+                nfc_worker->dev_data->protocol = NfcDeviceProtocolNfcV;
+                if(nfc_worker_read_nfcv(nfc_worker, &tx_rx)) {
+                    FURI_LOG_I(TAG, "nfc_worker_read_nfcv success");
+                }
+                event = NfcWorkerEventReadNfcV;
                 break;
             }
         } else {

lib/nfc/nfc_worker.h

@@ -18,6 +18,10 @@ typedef enum {
     NfcWorkerStateReadMfUltralightReadAuth,
     NfcWorkerStateMfClassicDictAttack,
     NfcWorkerStateAnalyzeReader,
+    NfcWorkerStateNfcVEmulate,
+    NfcWorkerStateNfcVUnlock,
+    NfcWorkerStateNfcVUnlockAndSave,
+    NfcWorkerStateNfcVSniff,
     // Debug
     NfcWorkerStateEmulateApdu,
     NfcWorkerStateField,
@@ -39,6 +43,7 @@ typedef enum {
     NfcWorkerEventReadMfClassicDone,
     NfcWorkerEventReadMfClassicLoadKeyCache,
     NfcWorkerEventReadMfClassicDictAttackRequired,
+    NfcWorkerEventReadNfcV,
 
     // Nfc worker common events
     NfcWorkerEventSuccess,
@@ -69,6 +74,9 @@ typedef enum {
     // Mifare Ultralight events
     NfcWorkerEventMfUltralightPassKey, // NFC worker requesting manual key
     NfcWorkerEventMfUltralightPwdAuth, // Reader sent auth command
+    NfcWorkerEventNfcVPassKey, // NFC worker requesting manual key
+    NfcWorkerEventNfcVCommandExecuted,
+    NfcWorkerEventNfcVContentChanged,
 } NfcWorkerEvent;
 
 typedef bool (*NfcWorkerCallback)(NfcWorkerEvent event, void* context);
@@ -87,3 +95,6 @@ void nfc_worker_start(
     void* context);
 
 void nfc_worker_stop(NfcWorker* nfc_worker);
+void nfc_worker_nfcv_unlock(NfcWorker* nfc_worker);
+void nfc_worker_nfcv_emulate(NfcWorker* nfc_worker);
+void nfc_worker_nfcv_sniff(NfcWorker* nfc_worker);

lib/nfc/nfc_worker_i.h

@@ -11,6 +11,8 @@
 #include <lib/nfc/protocols/mifare_classic.h>
 #include <lib/nfc/protocols/mifare_desfire.h>
 #include <lib/nfc/protocols/nfca.h>
+#include <lib/nfc/protocols/nfcv.h>
+#include <lib/nfc/protocols/slix.h>
 #include <lib/nfc/helpers/reader_analyzer.h>
 
 struct NfcWorker {

lib/nfc/protocols/nfcv.h

@@ -0,0 +1,291 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <lib/digital_signal/digital_signal.h>
+#include <lib/pulse_reader/pulse_reader.h>
+#include "nfc_util.h"
+#include <furi_hal_nfc.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* true: modulating releases load, false: modulating adds load resistor to field coil */
+#define NFCV_LOAD_MODULATION_POLARITY (false)
+
+#define NFCV_FC (13560000.0f) /* MHz */
+#define NFCV_RESP_SUBC1_PULSE_32 (1.0f / (NFCV_FC / 32) / 2.0f) /*  1.1799 µs */
+#define NFCV_RESP_SUBC1_UNMOD_256 (256.0f / NFCV_FC) /* 18.8791 µs */
+#define NFCV_PULSE_DURATION_NS (128.0f * 1000000000.0f / NFCV_FC)
+
+/* ISO/IEC 15693-3:2019(E) 10.4.12: maximum number of blocks is defined as 256 */
+#define NFCV_BLOCKS_MAX 256
+/* ISO/IEC 15693-3:2019(E) 10.4.12: maximum size of blocks is defined as 32 */
+#define NFCV_BLOCKSIZE_MAX 32
+/* the resulting memory size a card can have */
+#define NFCV_MEMSIZE_MAX (NFCV_BLOCKS_MAX * NFCV_BLOCKSIZE_MAX)
+/* ISO/IEC 15693-3:2019(E) 7.1b: standard allows up to 8192, the maxium frame length that we are expected to receive/send is less */
+#define NFCV_FRAMESIZE_MAX (1 + NFCV_MEMSIZE_MAX + NFCV_BLOCKS_MAX)
+
+/* maximum string length for log messages */
+#define NFCV_LOG_STR_LEN 128
+/* maximum of pulses to be buffered by pulse reader */
+#define NFCV_PULSE_BUFFER 512
+
+//#define NFCV_DIAGNOSTIC_DUMPS
+//#define NFCV_DIAGNOSTIC_DUMP_SIZE 256
+//#define NFCV_VERBOSE
+
+/* helpers to calculate the send time based on DWT->CYCCNT */
+#define NFCV_FDT_USEC(usec) ((usec)*64)
+#define NFCV_FDT_FC(ticks) ((ticks)*6400 / 1356)
+
+/* state machine when receiving frame bits */
+#define NFCV_FRAME_STATE_SOF1 0
+#define NFCV_FRAME_STATE_SOF2 1
+#define NFCV_FRAME_STATE_CODING_4 2
+#define NFCV_FRAME_STATE_CODING_256 3
+#define NFCV_FRAME_STATE_EOF 4
+#define NFCV_FRAME_STATE_RESET 5
+
+/* sequences for every section of a frame */
+#define NFCV_SIG_SOF 0
+#define NFCV_SIG_BIT0 1
+#define NFCV_SIG_BIT1 2
+#define NFCV_SIG_EOF 3
+#define NFCV_SIG_LOW_SOF 4
+#define NFCV_SIG_LOW_BIT0 5
+#define NFCV_SIG_LOW_BIT1 6
+#define NFCV_SIG_LOW_EOF 7
+
+/* various constants */
+#define NFCV_COMMAND_RETRIES 5
+#define NFCV_UID_LENGTH 8
+
+/* ISO15693 protocol flags */
+typedef enum {
+    /* ISO15693 protocol flags when INVENTORY is NOT set */
+    NFCV_REQ_FLAG_SUB_CARRIER = (1 << 0),
+    NFCV_REQ_FLAG_DATA_RATE = (1 << 1),
+    NFCV_REQ_FLAG_INVENTORY = (1 << 2),
+    NFCV_REQ_FLAG_PROTOCOL_EXT = (1 << 3),
+    NFCV_REQ_FLAG_SELECT = (1 << 4),
+    NFCV_REQ_FLAG_ADDRESS = (1 << 5),
+    NFCV_REQ_FLAG_OPTION = (1 << 6),
+    /* ISO15693 protocol flags when INVENTORY flag is set */
+    NFCV_REQ_FLAG_AFI = (1 << 4),
+    NFCV_REQ_FLAG_NB_SLOTS = (1 << 5)
+} NfcVRequestFlags;
+
+/* ISO15693 protocol flags */
+typedef enum {
+    NFCV_RES_FLAG_ERROR = (1 << 0),
+    NFCV_RES_FLAG_VALIDITY = (1 << 1),
+    NFCV_RES_FLAG_FINAL = (1 << 2),
+    NFCV_RES_FLAG_PROTOCOL_EXT = (1 << 3),
+    NFCV_RES_FLAG_SEC_LEN1 = (1 << 4),
+    NFCV_RES_FLAG_SEC_LEN2 = (1 << 5),
+    NFCV_RES_FLAG_WAIT_EXT = (1 << 6),
+} NfcVRsponseFlags;
+
+/* flags for SYSINFO response */
+typedef enum {
+    NFCV_SYSINFO_FLAG_DSFID = (1 << 0),
+    NFCV_SYSINFO_FLAG_AFI = (1 << 1),
+    NFCV_SYSINFO_FLAG_MEMSIZE = (1 << 2),
+    NFCV_SYSINFO_FLAG_ICREF = (1 << 3)
+} NfcVSysinfoFlags;
+
+/* ISO15693 command codes */
+typedef enum {
+    /* mandatory command codes */
+    NFCV_CMD_INVENTORY = 0x01,
+    NFCV_CMD_STAY_QUIET = 0x02,
+    /* optional command codes */
+    NFCV_CMD_READ_BLOCK = 0x20,
+    NFCV_CMD_WRITE_BLOCK = 0x21,
+    NFCV_CMD_LOCK_BLOCK = 0x22,
+    NFCV_CMD_READ_MULTI_BLOCK = 0x23,
+    NFCV_CMD_WRITE_MULTI_BLOCK = 0x24,
+    NFCV_CMD_SELECT = 0x25,
+    NFCV_CMD_RESET_TO_READY = 0x26,
+    NFCV_CMD_WRITE_AFI = 0x27,
+    NFCV_CMD_LOCK_AFI = 0x28,
+    NFCV_CMD_WRITE_DSFID = 0x29,
+    NFCV_CMD_LOCK_DSFID = 0x2A,
+    NFCV_CMD_GET_SYSTEM_INFO = 0x2B,
+    NFCV_CMD_READ_MULTI_SECSTATUS = 0x2C,
+    /* advanced command codes */
+    NFCV_CMD_ADVANCED = 0xA0,
+    /* flipper zero custom command codes */
+    NFCV_CMD_CUST_ECHO_MODE = 0xDE,
+    NFCV_CMD_CUST_ECHO_DATA = 0xDF
+} NfcVCommands;
+
+/* ISO15693 Response error codes */
+typedef enum {
+    NFCV_NOERROR = 0x00,
+    NFCV_ERROR_CMD_NOT_SUP = 0x01, // Command not supported
+    NFCV_ERROR_CMD_NOT_REC = 0x02, // Command not recognized (eg. parameter error)
+    NFCV_ERROR_CMD_OPTION = 0x03, // Command option not supported
+    NFCV_ERROR_GENERIC = 0x0F, // No additional Info about this error
+    NFCV_ERROR_BLOCK_UNAVAILABLE = 0x10,
+    NFCV_ERROR_BLOCK_LOCKED_ALREADY = 0x11, // cannot lock again
+    NFCV_ERROR_BLOCK_LOCKED = 0x12, // cannot be changed
+    NFCV_ERROR_BLOCK_WRITE = 0x13, // Writing was unsuccessful
+    NFCV_ERROR_BLOCL_WRITELOCK = 0x14 // Locking was unsuccessful
+} NfcVErrorcodes;
+
+typedef enum {
+    NfcVLockBitDsfid = 1,
+    NfcVLockBitAfi = 2,
+} NfcVLockBits;
+
+typedef enum {
+    NfcVAuthMethodManual,
+    NfcVAuthMethodTonieBox,
+} NfcVAuthMethod;
+
+typedef enum {
+    NfcVTypePlain = 0,
+    NfcVTypeSlix = 1,
+    NfcVTypeSlixS = 2,
+    NfcVTypeSlixL = 3,
+    NfcVTypeSlix2 = 4,
+    NfcVTypeSniff = 255,
+} NfcVSubtype;
+
+typedef enum {
+    NfcVSendFlagsNormal = 0,
+    NfcVSendFlagsSof = 1 << 0,
+    NfcVSendFlagsCrc = 1 << 1,
+    NfcVSendFlagsEof = 1 << 2,
+    NfcVSendFlagsOneSubcarrier = 0,
+    NfcVSendFlagsTwoSubcarrier = 1 << 3,
+    NfcVSendFlagsLowRate = 0,
+    NfcVSendFlagsHighRate = 1 << 4
+} NfcVSendFlags;
+
+typedef struct {
+    uint8_t key_read[4];
+    uint8_t key_write[4];
+    uint8_t key_privacy[4];
+    uint8_t key_destroy[4];
+    uint8_t key_eas[4];
+    uint8_t rand[2];
+    bool privacy;
+} NfcVSlixData;
+
+typedef union {
+    NfcVSlixData slix;
+} NfcVSubtypeData;
+
+typedef struct {
+    DigitalSignal* nfcv_resp_sof;
+    DigitalSignal* nfcv_resp_one;
+    DigitalSignal* nfcv_resp_zero;
+    DigitalSignal* nfcv_resp_eof;
+} NfcVEmuAirSignals;
+
+typedef struct {
+    PulseReader* reader_signal;
+    DigitalSignal* nfcv_resp_pulse; /* pulse length, fc/32 */
+    DigitalSignal* nfcv_resp_half_pulse; /* half pulse length, fc/32 */
+    DigitalSignal* nfcv_resp_unmod; /* unmodulated length 256/fc */
+    NfcVEmuAirSignals signals_high;
+    NfcVEmuAirSignals signals_low;
+    DigitalSequence* nfcv_signal;
+} NfcVEmuAir;
+
+typedef void (*NfcVEmuProtocolHandler)(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    void* nfcv_data);
+typedef bool (*NfcVEmuProtocolFilter)(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    void* nfcv_data);
+
+/* the default ISO15693 handler context */
+typedef struct {
+    uint8_t flags; /* ISO15693-3 flags of the header as specified */
+    uint8_t command; /* ISO15693-3 command at offset 1 as specified */
+    bool selected; /* ISO15693-3 flags: selected frame */
+    bool addressed; /* ISO15693-3 flags: addressed frame */
+    bool advanced; /* ISO15693-3 command: advanced command */
+    uint8_t address_offset; /* ISO15693-3 offset of the address in frame, if addressed is set */
+    uint8_t payload_offset; /* ISO15693-3 offset of the payload in frame */
+
+    uint8_t response_buffer[NFCV_FRAMESIZE_MAX]; /* pre-allocated response buffer */
+    NfcVSendFlags response_flags; /* flags to use when sending response */
+    uint32_t send_time; /* timestamp when to send the response */
+
+    NfcVEmuProtocolFilter emu_protocol_filter;
+} NfcVEmuProtocolCtx;
+
+typedef struct {
+    /* common ISO15693 fields, being specified in ISO15693-3 */
+    uint8_t dsfid;
+    uint8_t afi;
+    uint8_t ic_ref;
+    uint16_t block_num;
+    uint8_t block_size;
+    uint8_t data[NFCV_MEMSIZE_MAX];
+    uint8_t security_status[1 + NFCV_BLOCKS_MAX];
+    bool selected;
+    bool quiet;
+
+    bool modified;
+    bool ready;
+    bool echo_mode;
+
+    /* specfic variant infos */
+    NfcVSubtype sub_type;
+    NfcVSubtypeData sub_data;
+    NfcVAuthMethod auth_method;
+
+    /* precalced air level data */
+    NfcVEmuAir emu_air;
+
+    uint8_t* frame; /* [NFCV_FRAMESIZE_MAX] ISO15693-2 incoming raw data from air layer */
+    uint8_t frame_length; /* ISO15693-2 length of incoming data */
+    uint32_t eof_timestamp; /* ISO15693-2 EOF timestamp, read from DWT->CYCCNT */
+
+    /* handler for the protocol layer as specified in ISO15693-3 */
+    NfcVEmuProtocolHandler emu_protocol_handler;
+    void* emu_protocol_ctx;
+    /* runtime data */
+    char last_command[NFCV_LOG_STR_LEN];
+    char error[NFCV_LOG_STR_LEN];
+} NfcVData;
+
+typedef struct {
+    uint16_t blocks_to_read;
+    int16_t blocks_read;
+} NfcVReader;
+
+ReturnCode nfcv_read_blocks(NfcVReader* reader, NfcVData* data);
+ReturnCode nfcv_read_sysinfo(FuriHalNfcDevData* nfc_data, NfcVData* data);
+ReturnCode nfcv_inventory(uint8_t* uid);
+bool nfcv_read_card(NfcVReader* reader, FuriHalNfcDevData* nfc_data, NfcVData* data);
+
+void nfcv_emu_init(FuriHalNfcDevData* nfc_data, NfcVData* nfcv_data);
+void nfcv_emu_deinit(NfcVData* nfcv_data);
+bool nfcv_emu_loop(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    NfcVData* nfcv_data,
+    uint32_t timeout_ms);
+void nfcv_emu_send(
+    FuriHalNfcTxRxContext* tx_rx,
+    NfcVData* nfcv,
+    uint8_t* data,
+    uint8_t length,
+    NfcVSendFlags flags,
+    uint32_t send_time);
+
+#ifdef __cplusplus
+}
+#endif

lib/nfc/protocols/slix.c

@@ -0,0 +1,412 @@
+
+#include <limits.h>
+#include "nfcv.h"
+#include "slix.h"
+#include "nfc_util.h"
+#include <furi.h>
+#include "furi_hal_nfc.h"
+#include <furi_hal_random.h>
+
+#define TAG "SLIX"
+
+static uint32_t slix_read_be(uint8_t* data, uint32_t length) {
+    uint32_t value = 0;
+
+    for(uint32_t pos = 0; pos < length; pos++) {
+        value <<= 8;
+        value |= data[pos];
+    }
+
+    return value;
+}
+
+uint8_t slix_get_ti(FuriHalNfcDevData* nfc_data) {
+    return (nfc_data->uid[3] >> 3) & 3;
+}
+
+bool slix_check_card_type(FuriHalNfcDevData* nfc_data) {
+    if((nfc_data->uid[0] == 0xE0) && (nfc_data->uid[1] == 0x04) && (nfc_data->uid[2] == 0x01) &&
+       slix_get_ti(nfc_data) == 2) {
+        return true;
+    }
+    return false;
+}
+
+bool slix2_check_card_type(FuriHalNfcDevData* nfc_data) {
+    if((nfc_data->uid[0] == 0xE0) && (nfc_data->uid[1] == 0x04) && (nfc_data->uid[2] == 0x01) &&
+       slix_get_ti(nfc_data) == 1) {
+        return true;
+    }
+    return false;
+}
+
+bool slix_s_check_card_type(FuriHalNfcDevData* nfc_data) {
+    if((nfc_data->uid[0] == 0xE0) && (nfc_data->uid[1] == 0x04) && (nfc_data->uid[2] == 0x02)) {
+        return true;
+    }
+    return false;
+}
+
+bool slix_l_check_card_type(FuriHalNfcDevData* nfc_data) {
+    if((nfc_data->uid[0] == 0xE0) && (nfc_data->uid[1] == 0x04) && (nfc_data->uid[2] == 0x03)) {
+        return true;
+    }
+    return false;
+}
+
+ReturnCode slix_get_random(NfcVData* data) {
+    uint16_t received = 0;
+    uint8_t rxBuf[32];
+
+    ReturnCode ret = rfalNfcvPollerTransceiveReq(
+        NFCV_CMD_NXP_GET_RANDOM_NUMBER,
+        RFAL_NFCV_REQ_FLAG_DEFAULT,
+        NFCV_MANUFACTURER_NXP,
+        NULL,
+        NULL,
+        0,
+        rxBuf,
+        sizeof(rxBuf),
+        &received);
+
+    if(ret == ERR_NONE) {
+        if(received != 3) {
+            return ERR_PROTO;
+        }
+        if(data != NULL) {
+            data->sub_data.slix.rand[0] = rxBuf[2];
+            data->sub_data.slix.rand[1] = rxBuf[1];
+        }
+    }
+
+    return ret;
+}
+
+ReturnCode slix_unlock(NfcVData* data, uint32_t password_id) {
+    furi_assert(rand);
+
+    uint16_t received = 0;
+    uint8_t rxBuf[32];
+    uint8_t cmd_set_pass[] = {
+        password_id,
+        data->sub_data.slix.rand[1],
+        data->sub_data.slix.rand[0],
+        data->sub_data.slix.rand[1],
+        data->sub_data.slix.rand[0]};
+    uint8_t* password = NULL;
+
+    switch(password_id) {
+    case SLIX_PASS_READ:
+        password = data->sub_data.slix.key_read;
+        break;
+    case SLIX_PASS_WRITE:
+        password = data->sub_data.slix.key_write;
+        break;
+    case SLIX_PASS_PRIVACY:
+        password = data->sub_data.slix.key_privacy;
+        break;
+    case SLIX_PASS_DESTROY:
+        password = data->sub_data.slix.key_destroy;
+        break;
+    case SLIX_PASS_EASAFI:
+        password = data->sub_data.slix.key_eas;
+        break;
+    default:
+        break;
+    }
+
+    if(!password) {
+        return ERR_NOTSUPP;
+    }
+
+    for(int pos = 0; pos < 4; pos++) {
+        cmd_set_pass[1 + pos] ^= password[3 - pos];
+    }
+
+    ReturnCode ret = rfalNfcvPollerTransceiveReq(
+        NFCV_CMD_NXP_SET_PASSWORD,
+        RFAL_NFCV_REQ_FLAG_DATA_RATE,
+        NFCV_MANUFACTURER_NXP,
+        NULL,
+        cmd_set_pass,
+        sizeof(cmd_set_pass),
+        rxBuf,
+        sizeof(rxBuf),
+        &received);
+
+    return ret;
+}
+
+bool slix_generic_protocol_filter(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    void* nfcv_data_in,
+    uint32_t password_supported) {
+    furi_assert(tx_rx);
+    furi_assert(nfc_data);
+    furi_assert(nfcv_data_in);
+
+    NfcVData* nfcv_data = (NfcVData*)nfcv_data_in;
+    NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
+    NfcVSlixData* slix = &nfcv_data->sub_data.slix;
+
+    if(slix->privacy && ctx->command != NFCV_CMD_NXP_GET_RANDOM_NUMBER &&
+       ctx->command != NFCV_CMD_NXP_SET_PASSWORD) {
+        snprintf(
+            nfcv_data->last_command,
+            sizeof(nfcv_data->last_command),
+            "command 0x%02X ignored, privacy mode",
+            ctx->command);
+        FURI_LOG_D(TAG, "%s", nfcv_data->last_command);
+        return true;
+    }
+
+    bool handled = false;
+
+    switch(ctx->command) {
+    case NFCV_CMD_NXP_GET_RANDOM_NUMBER: {
+        slix->rand[0] = furi_hal_random_get();
+        slix->rand[1] = furi_hal_random_get();
+
+        ctx->response_buffer[0] = NFCV_NOERROR;
+        ctx->response_buffer[1] = slix->rand[1];
+        ctx->response_buffer[2] = slix->rand[0];
+
+        nfcv_emu_send(
+            tx_rx, nfcv_data, ctx->response_buffer, 3, ctx->response_flags, ctx->send_time);
+        snprintf(
+            nfcv_data->last_command,
+            sizeof(nfcv_data->last_command),
+            "GET_RANDOM_NUMBER -> 0x%02X%02X",
+            slix->rand[0],
+            slix->rand[1]);
+
+        handled = true;
+        break;
+    }
+
+    case NFCV_CMD_NXP_SET_PASSWORD: {
+        uint8_t password_id = nfcv_data->frame[ctx->payload_offset];
+
+        if(!(password_id & password_supported)) {
+            break;
+        }
+
+        uint8_t* password_xored = &nfcv_data->frame[ctx->payload_offset + 1];
+        uint8_t* rand = slix->rand;
+        uint8_t* password = NULL;
+        uint8_t password_rcv[4];
+
+        switch(password_id) {
+        case SLIX_PASS_READ:
+            password = slix->key_read;
+            break;
+        case SLIX_PASS_WRITE:
+            password = slix->key_write;
+            break;
+        case SLIX_PASS_PRIVACY:
+            password = slix->key_privacy;
+            break;
+        case SLIX_PASS_DESTROY:
+            password = slix->key_destroy;
+            break;
+        case SLIX_PASS_EASAFI:
+            password = slix->key_eas;
+            break;
+        default:
+            break;
+        }
+
+        if(!password) {
+            break;
+        }
+
+        for(int pos = 0; pos < 4; pos++) {
+            password_rcv[pos] = password_xored[3 - pos] ^ rand[pos % 2];
+        }
+        uint32_t pass_expect = slix_read_be(password, 4);
+        uint32_t pass_received = slix_read_be(password_rcv, 4);
+
+        /* if the password is all-zeroes, just accept any password*/
+        if(!pass_expect || pass_expect == pass_received) {
+            switch(password_id) {
+            case SLIX_PASS_READ:
+                break;
+            case SLIX_PASS_WRITE:
+                break;
+            case SLIX_PASS_PRIVACY:
+                slix->privacy = false;
+                nfcv_data->modified = true;
+                break;
+            case SLIX_PASS_DESTROY:
+                FURI_LOG_D(TAG, "Pooof! Got destroyed");
+                break;
+            case SLIX_PASS_EASAFI:
+                break;
+            default:
+                break;
+            }
+            ctx->response_buffer[0] = NFCV_NOERROR;
+            nfcv_emu_send(
+                tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags, ctx->send_time);
+            snprintf(
+                nfcv_data->last_command,
+                sizeof(nfcv_data->last_command),
+                "SET_PASSWORD #%02X 0x%08lX OK",
+                password_id,
+                pass_received);
+        } else {
+            snprintf(
+                nfcv_data->last_command,
+                sizeof(nfcv_data->last_command),
+                "SET_PASSWORD #%02X 0x%08lX/%08lX FAIL",
+                password_id,
+                pass_received,
+                pass_expect);
+        }
+        handled = true;
+        break;
+    }
+
+    case NFCV_CMD_NXP_ENABLE_PRIVACY: {
+        ctx->response_buffer[0] = NFCV_NOERROR;
+
+        nfcv_emu_send(
+            tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags, ctx->send_time);
+        snprintf(
+            nfcv_data->last_command,
+            sizeof(nfcv_data->last_command),
+            "NFCV_CMD_NXP_ENABLE_PRIVACY");
+
+        slix->privacy = true;
+        handled = true;
+        break;
+    }
+    }
+
+    return handled;
+}
+
+bool slix_l_protocol_filter(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    void* nfcv_data_in) {
+    furi_assert(tx_rx);
+    furi_assert(nfc_data);
+    furi_assert(nfcv_data_in);
+
+    bool handled = false;
+
+    /* many SLIX share some of the functions, place that in a generic handler */
+    if(slix_generic_protocol_filter(
+           tx_rx,
+           nfc_data,
+           nfcv_data_in,
+           SLIX_PASS_PRIVACY | SLIX_PASS_DESTROY | SLIX_PASS_EASAFI)) {
+        return true;
+    }
+
+    return handled;
+}
+
+void slix_l_prepare(NfcVData* nfcv_data) {
+    FURI_LOG_D(
+        TAG, "  Privacy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_privacy, 4));
+    FURI_LOG_D(
+        TAG, "  Destroy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_destroy, 4));
+    FURI_LOG_D(TAG, "  EAS     pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
+    FURI_LOG_D(TAG, "  Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
+
+    NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
+    ctx->emu_protocol_filter = &slix_l_protocol_filter;
+}
+
+bool slix_s_protocol_filter(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    void* nfcv_data_in) {
+    furi_assert(tx_rx);
+    furi_assert(nfc_data);
+    furi_assert(nfcv_data_in);
+
+    bool handled = false;
+
+    /* many SLIX share some of the functions, place that in a generic handler */
+    if(slix_generic_protocol_filter(tx_rx, nfc_data, nfcv_data_in, SLIX_PASS_ALL)) {
+        return true;
+    }
+
+    return handled;
+}
+
+void slix_s_prepare(NfcVData* nfcv_data) {
+    FURI_LOG_D(
+        TAG, "  Privacy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_privacy, 4));
+    FURI_LOG_D(
+        TAG, "  Destroy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_destroy, 4));
+    FURI_LOG_D(TAG, "  EAS     pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
+    FURI_LOG_D(TAG, "  Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
+
+    NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
+    ctx->emu_protocol_filter = &slix_s_protocol_filter;
+}
+
+bool slix_protocol_filter(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    void* nfcv_data_in) {
+    furi_assert(tx_rx);
+    furi_assert(nfc_data);
+    furi_assert(nfcv_data_in);
+
+    bool handled = false;
+
+    /* many SLIX share some of the functions, place that in a generic handler */
+    if(slix_generic_protocol_filter(tx_rx, nfc_data, nfcv_data_in, SLIX_PASS_EASAFI)) {
+        return true;
+    }
+
+    return handled;
+}
+
+void slix_prepare(NfcVData* nfcv_data) {
+    FURI_LOG_D(
+        TAG, "  Privacy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_privacy, 4));
+    FURI_LOG_D(
+        TAG, "  Destroy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_destroy, 4));
+    FURI_LOG_D(TAG, "  EAS     pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
+    FURI_LOG_D(TAG, "  Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
+
+    NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
+    ctx->emu_protocol_filter = &slix_protocol_filter;
+}
+
+bool slix2_protocol_filter(
+    FuriHalNfcTxRxContext* tx_rx,
+    FuriHalNfcDevData* nfc_data,
+    void* nfcv_data_in) {
+    furi_assert(tx_rx);
+    furi_assert(nfc_data);
+    furi_assert(nfcv_data_in);
+
+    bool handled = false;
+
+    /* many SLIX share some of the functions, place that in a generic handler */
+    if(slix_generic_protocol_filter(tx_rx, nfc_data, nfcv_data_in, SLIX_PASS_ALL)) {
+        return true;
+    }
+
+    return handled;
+}
+
+void slix2_prepare(NfcVData* nfcv_data) {
+    FURI_LOG_D(
+        TAG, "  Privacy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_privacy, 4));
+    FURI_LOG_D(
+        TAG, "  Destroy pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_destroy, 4));
+    FURI_LOG_D(TAG, "  EAS     pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
+    FURI_LOG_D(TAG, "  Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
+
+    NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
+    ctx->emu_protocol_filter = &slix2_protocol_filter;
+}

lib/nfc/protocols/slix.h

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "nfc_util.h"
+#include <furi_hal_nfc.h>
+
+#define NFCV_MANUFACTURER_NXP 0x04
+
+/* ISO15693-3 CUSTOM NXP COMMANDS */
+#define NFCV_CMD_NXP_SET_EAS 0xA2
+#define NFCV_CMD_NXP_RESET_EAS 0xA3
+#define NFCV_CMD_NXP_LOCK_EAS 0xA4
+#define NFCV_CMD_NXP_EAS_ALARM 0xA5
+#define NFCV_CMD_NXP_PASSWORD_PROTECT_EAS_AFI 0xA6
+#define NFCV_CMD_NXP_WRITE_EAS_ID 0xA7
+#define NFCV_CMD_NXP_INVENTORY_PAGE_READ 0xB0
+#define NFCV_CMD_NXP_INVENTORY_PAGE_READ_FAST 0xB1
+#define NFCV_CMD_NXP_GET_RANDOM_NUMBER 0xB2
+#define NFCV_CMD_NXP_SET_PASSWORD 0xB3
+#define NFCV_CMD_NXP_WRITE_PASSWORD 0xB4
+#define NFCV_CMD_NXP_DESTROY 0xB9
+#define NFCV_CMD_NXP_ENABLE_PRIVACY 0xBA
+
+/* available passwords */
+#define SLIX_PASS_READ 0x01
+#define SLIX_PASS_WRITE 0x02
+#define SLIX_PASS_PRIVACY 0x04
+#define SLIX_PASS_DESTROY 0x08
+#define SLIX_PASS_EASAFI 0x10
+
+#define SLIX_PASS_ALL \
+    (SLIX_PASS_READ | SLIX_PASS_WRITE | SLIX_PASS_PRIVACY | SLIX_PASS_DESTROY | SLIX_PASS_EASAFI)
+
+bool slix_check_card_type(FuriHalNfcDevData* nfc_data);
+bool slix2_check_card_type(FuriHalNfcDevData* nfc_data);
+bool slix_s_check_card_type(FuriHalNfcDevData* nfc_data);
+bool slix_l_check_card_type(FuriHalNfcDevData* nfc_data);
+
+ReturnCode slix_get_random(NfcVData* data);
+ReturnCode slix_unlock(NfcVData* data, uint32_t password_id);
+
+void slix_prepare(NfcVData* nfcv_data);
+void slix_s_prepare(NfcVData* nfcv_data);
+void slix_l_prepare(NfcVData* nfcv_data);
+void slix2_prepare(NfcVData* nfcv_data);