Merge branch 'dev' of https://github.com/DarkFlippers/unleashed-firmware into xfw-dev

applications/external/mfkey32/application.fam

@@ -10,7 +10,7 @@ App(
     ],
     stack_size=1 * 1024,
     fap_icon="mfkey.png",
-    fap_category="Tools",
+    fap_category="NFC",
     fap_author="noproto",
     fap_icon_assets="images",
     fap_weburl="https://github.com/noproto/FlipperMfkey",

applications/external/mifare_nested/LICENSE.md

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
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+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

applications/external/mifare_nested/application.fam

@@ -0,0 +1,25 @@
+App(
+    appid="mifare_nested",
+    name="Mifare Nested",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="mifare_nested_app",
+    requires=[
+        "storage",
+        "gui",
+        "nfc"
+    ],
+    stack_size=4 * 1024,
+    order=30,
+    fap_icon="assets/icon.png",
+    fap_category="NFC",
+    fap_private_libs=[
+        Lib(name="nested"),
+        Lib(name="parity"),
+        Lib(name="crypto1")
+    ],
+    fap_icon_assets="assets",
+    fap_author="AloneLiberty",
+    fap_description="Recover Mifare Classic keys",
+    fap_weburl="https://github.com/AloneLiberty/FlipperNested",
+    fap_version=(1, 4)
+)

applications/external/mifare_nested/lib/crypto1/crypto1.c

@@ -0,0 +1,118 @@
+#include "crypto1.h"
+#include <string.h>
+
+void crypto1_reset(Crypto1* crypto1) {
+    furi_assert(crypto1);
+    crypto1->even = 0;
+    crypto1->odd = 0;
+}
+
+void crypto1_init(Crypto1* crypto1, uint64_t key) {
+    furi_assert(crypto1);
+    crypto1->even = 0;
+    crypto1->odd = 0;
+    for(int8_t i = 47; i > 0; i -= 2) {
+        crypto1->odd = crypto1->odd << 1 | FURI_BIT(key, (i - 1) ^ 7);
+        crypto1->even = crypto1->even << 1 | FURI_BIT(key, i ^ 7);
+    }
+}
+
+uint32_t crypto1_filter(uint32_t in) {
+    uint32_t out = 0;
+    out = 0xf22c0 >> (in & 0xf) & 16;
+    out |= 0x6c9c0 >> (in >> 4 & 0xf) & 8;
+    out |= 0x3c8b0 >> (in >> 8 & 0xf) & 4;
+    out |= 0x1e458 >> (in >> 12 & 0xf) & 2;
+    out |= 0x0d938 >> (in >> 16 & 0xf) & 1;
+    return FURI_BIT(0xEC57E80A, out);
+}
+
+uint8_t crypto1_bit(Crypto1* crypto1, uint8_t in, int is_encrypted) {
+    furi_assert(crypto1);
+    uint8_t out = crypto1_filter(crypto1->odd);
+    uint32_t feed = out & (!!is_encrypted);
+    feed ^= !!in;
+    feed ^= LF_POLY_ODD & crypto1->odd;
+    feed ^= LF_POLY_EVEN & crypto1->even;
+    crypto1->even = crypto1->even << 1 | (evenparity32(feed));
+
+    FURI_SWAP(crypto1->odd, crypto1->even);
+    return out;
+}
+
+uint8_t crypto1_byte(Crypto1* crypto1, uint8_t in, int is_encrypted) {
+    furi_assert(crypto1);
+    uint8_t out = 0;
+    for(uint8_t i = 0; i < 8; i++) {
+        out |= crypto1_bit(crypto1, FURI_BIT(in, i), is_encrypted) << i;
+    }
+    return out;
+}
+
+uint32_t crypto1_word(Crypto1* crypto1, uint32_t in, int is_encrypted) {
+    furi_assert(crypto1);
+    uint32_t out = 0;
+    for(uint8_t i = 0; i < 32; i++) {
+        out |= (uint32_t)crypto1_bit(crypto1, BEBIT(in, i), is_encrypted) << (24 ^ i);
+    }
+    return out;
+}
+
+uint32_t prng_successor(uint32_t x, uint32_t n) {
+    SWAPENDIAN(x);
+    while(n--) x = x >> 1 | (x >> 16 ^ x >> 18 ^ x >> 19 ^ x >> 21) << 31;
+
+    return SWAPENDIAN(x);
+}
+
+void crypto1_decrypt(
+    Crypto1* crypto,
+    uint8_t* encrypted_data,
+    uint16_t encrypted_data_bits,
+    uint8_t* decrypted_data) {
+    furi_assert(crypto);
+    furi_assert(encrypted_data);
+    furi_assert(decrypted_data);
+
+    if(encrypted_data_bits < 8) {
+        uint8_t decrypted_byte = 0;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 0)) << 0;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 1)) << 1;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 2)) << 2;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 3)) << 3;
+        decrypted_data[0] = decrypted_byte;
+    } else {
+        for(size_t i = 0; i < encrypted_data_bits / 8; i++) {
+            decrypted_data[i] = crypto1_byte(crypto, 0, 0) ^ encrypted_data[i];
+        }
+    }
+}
+
+void crypto1_encrypt(
+    Crypto1* crypto,
+    uint8_t* keystream,
+    uint8_t* plain_data,
+    uint16_t plain_data_bits,
+    uint8_t* encrypted_data,
+    uint8_t* encrypted_parity) {
+    furi_assert(crypto);
+    furi_assert(plain_data);
+    furi_assert(encrypted_data);
+    furi_assert(encrypted_parity);
+
+    if(plain_data_bits < 8) {
+        encrypted_data[0] = 0;
+        for(size_t i = 0; i < plain_data_bits; i++) {
+            encrypted_data[0] |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(plain_data[0], i)) << i;
+        }
+    } else {
+        memset(encrypted_parity, 0, plain_data_bits / 8 + 1);
+        for(uint8_t i = 0; i < plain_data_bits / 8; i++) {
+            encrypted_data[i] = crypto1_byte(crypto, keystream ? keystream[i] : 0, 0) ^
+                                plain_data[i];
+            encrypted_parity[i / 8] |=
+                (((crypto1_filter(crypto->odd) ^ oddparity8(plain_data[i])) & 0x01)
+                 << (7 - (i & 0x0007)));
+        }
+    }
+}

applications/external/mifare_nested/lib/crypto1/crypto1.h

@@ -0,0 +1,39 @@
+#include "../../lib/parity/parity.h"
+#include <lib/nfc/protocols/mifare_classic.h>
+#include <lib/nfc/protocols/crypto1.h>
+#include "stddef.h"
+
+#define LF_POLY_ODD (0x29CE5C)
+#define LF_POLY_EVEN (0x870804)
+
+#define SWAPENDIAN(x) \
+    ((x) = ((x) >> 8 & 0xff00ff) | ((x)&0xff00ff) << 8, (x) = (x) >> 16 | (x) << 16)
+#define BEBIT(x, n) FURI_BIT(x, (n) ^ 24)
+
+void crypto1_reset(Crypto1* crypto1);
+
+void crypto1_init(Crypto1* crypto1, uint64_t key);
+
+uint32_t crypto1_filter(uint32_t in);
+
+uint8_t crypto1_bit(Crypto1* crypto1, uint8_t in, int is_encrypted);
+
+uint8_t crypto1_byte(Crypto1* crypto1, uint8_t in, int is_encrypted);
+
+uint32_t crypto1_word(Crypto1* crypto1, uint32_t in, int is_encrypted);
+
+uint32_t prng_successor(uint32_t x, uint32_t n);
+
+void crypto1_decrypt(
+    Crypto1* crypto,
+    uint8_t* encrypted_data,
+    uint16_t encrypted_data_bits,
+    uint8_t* decrypted_data);
+
+void crypto1_encrypt(
+    Crypto1* crypto,
+    uint8_t* keystream,
+    uint8_t* plain_data,
+    uint16_t plain_data_bits,
+    uint8_t* encrypted_data,
+    uint8_t* encrypted_parity);

applications/external/mifare_nested/lib/nested/nested.c

@@ -0,0 +1,740 @@
+#include "nested.h"
+
+#include <furi_hal_nfc.h>
+#include "../../lib/parity/parity.h"
+#include "../../lib/crypto1/crypto1.h"
+#define TAG "Nested"
+
+void nfc_util_num2bytes(uint64_t src, uint8_t len, uint8_t* dest) {
+    furi_assert(dest);
+    furi_assert(len <= 8);
+
+    while(len--) {
+        dest[len] = (uint8_t)src;
+        src >>= 8;
+    }
+}
+
+uint64_t nfc_util_bytes2num(const uint8_t* src, uint8_t len) {
+    furi_assert(src);
+    furi_assert(len <= 8);
+
+    uint64_t res = 0;
+    while(len--) {
+        res = (res << 8) | (*src);
+        src++;
+    }
+    return res;
+}
+
+uint16_t nfca_get_crc16(uint8_t* buff, uint16_t len) {
+    uint16_t crc = 0x6363; // NFCA_CRC_INIT
+    uint8_t byte = 0;
+
+    for(uint8_t i = 0; i < len; i++) {
+        byte = buff[i];
+        byte ^= (uint8_t)(crc & 0xff);
+        byte ^= byte << 4;
+        crc = (crc >> 8) ^ (((uint16_t)byte) << 8) ^ (((uint16_t)byte) << 3) ^
+              (((uint16_t)byte) >> 4);
+    }
+
+    return crc;
+}
+
+void nfca_append_crc16(uint8_t* buff, uint16_t len) {
+    uint16_t crc = nfca_get_crc16(buff, len);
+    buff[len] = (uint8_t)crc;
+    buff[len + 1] = (uint8_t)(crc >> 8);
+}
+
+bool mifare_sendcmd_short(
+    Crypto1* crypto,
+    FuriHalNfcTxRxContext* tx_rx,
+    bool crypted,
+    uint32_t cmd,
+    uint32_t data) {
+    uint16_t pos;
+    uint8_t dcmd[4] = {cmd, data, 0x00, 0x00};
+    nfca_append_crc16(dcmd, 2);
+
+    memset(tx_rx->tx_data, 0, sizeof(tx_rx->tx_data));
+    memset(tx_rx->tx_parity, 0, sizeof(tx_rx->tx_parity));
+
+    if(crypted) {
+        for(pos = 0; pos < 4; pos++) {
+            uint8_t res = crypto1_byte(crypto, 0x00, 0) ^ dcmd[pos];
+            tx_rx->tx_data[pos] = res;
+            tx_rx->tx_parity[0] |=
+                (((crypto1_filter(crypto->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7 - pos));
+        }
+
+        tx_rx->tx_rx_type = FuriHalNfcTxRxTypeRaw;
+        tx_rx->tx_bits = 4 * 8;
+    } else {
+        for(pos = 0; pos < 2; pos++) {
+            tx_rx->tx_data[pos] = dcmd[pos];
+        }
+
+        tx_rx->tx_rx_type = FuriHalNfcTxRxTypeRxNoCrc;
+        tx_rx->tx_bits = 2 * 8;
+    }
+
+    if(!furi_hal_nfc_tx_rx(tx_rx, 6)) return false;
+
+    return true;
+}
+
+bool mifare_classic_authex(
+    Crypto1* crypto,
+    FuriHalNfcTxRxContext* tx_rx,
+    uint32_t uid,
+    uint32_t blockNo,
+    uint32_t keyType,
+    uint64_t ui64Key,
+    bool isNested,
+    uint32_t* ntptr) {
+    uint32_t nt, ntpp; // Supplied tag nonce
+    uint8_t nr[4];
+
+    // "random" reader nonce:
+    nfc_util_num2bytes(prng_successor(0, 32), 4, nr); // DWT->CYCCNT
+
+    // Transmit MIFARE_CLASSIC_AUTH
+    if(!mifare_sendcmd_short(crypto, tx_rx, isNested, 0x60 + (keyType & 0x01), blockNo)) {
+        return false;
+    };
+
+    memset(tx_rx->tx_data, 0, sizeof(tx_rx->tx_data));
+    memset(tx_rx->tx_parity, 0, sizeof(tx_rx->tx_parity));
+
+    nt = (uint32_t)nfc_util_bytes2num(tx_rx->rx_data, 4);
+
+    if(isNested) crypto1_reset(crypto); // deinit
+
+    crypto1_init(crypto, ui64Key);
+
+    if(isNested) {
+        nt = crypto1_word(crypto, nt ^ uid, 1) ^ nt;
+    } else {
+        crypto1_word(crypto, nt ^ uid, 0);
+    }
+
+    // save Nt
+    if(ntptr) *ntptr = nt;
+
+    // Generate (encrypted) nr+parity by loading it into the cipher (Nr)
+    tx_rx->tx_parity[0] = 0;
+    for(uint8_t i = 0; i < 4; i++) {
+        tx_rx->tx_data[i] = crypto1_byte(crypto, nr[i], 0) ^ nr[i];
+        tx_rx->tx_parity[0] |=
+            (((crypto1_filter(crypto->odd) ^ oddparity8(nr[i])) & 0x01) << (7 - i));
+    }
+
+    nt = prng_successor(nt, 32);
+
+    for(uint8_t i = 4; i < 8; i++) {
+        nt = prng_successor(nt, 8);
+        tx_rx->tx_data[i] = crypto1_byte(crypto, 0x00, 0) ^ (nt & 0xff);
+        tx_rx->tx_parity[0] |=
+            (((crypto1_filter(crypto->odd) ^ oddparity8(nt & 0xff)) & 0x01) << (7 - i));
+    }
+
+    tx_rx->tx_rx_type = FuriHalNfcTxRxTypeRaw;
+    tx_rx->tx_bits = 8 * 8;
+
+    if(!furi_hal_nfc_tx_rx(tx_rx, 25)) {
+        return false;
+    };
+
+    uint32_t answer = (uint32_t)nfc_util_bytes2num(tx_rx->rx_data, 4);
+
+    ntpp = prng_successor(nt, 32) ^ crypto1_word(crypto, 0, 0);
+
+    if(answer != ntpp) {
+        return false;
+    }
+
+    return true;
+}
+
+static int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, const uint8_t* parity) {
+    return ((oddparity8((Nt >> 24) & 0xFF) ==
+             ((parity[0]) ^ oddparity8((NtEnc >> 24) & 0xFF) ^ FURI_BIT(Ks1, 16))) &&
+            (oddparity8((Nt >> 16) & 0xFF) ==
+             ((parity[1]) ^ oddparity8((NtEnc >> 16) & 0xFF) ^ FURI_BIT(Ks1, 8))) &&
+            (oddparity8((Nt >> 8) & 0xFF) ==
+             ((parity[2]) ^ oddparity8((NtEnc >> 8) & 0xFF) ^ FURI_BIT(Ks1, 0)))) ?
+               1 :
+               0;
+}
+
+void nonce_distance(uint32_t* msb, uint32_t* lsb) {
+    uint16_t x = 1, pos;
+    uint8_t calc_ok = 0;
+
+    for(uint16_t i = 1; i; ++i) {
+        pos = (x & 0xff) << 8 | x >> 8;
+
+        if((pos == *msb) & !(calc_ok >> 0 & 0x01)) {
+            *msb = i;
+            calc_ok |= 0x01;
+        }
+
+        if((pos == *lsb) & !(calc_ok >> 1 & 0x01)) {
+            *lsb = i;
+            calc_ok |= 0x02;
+        }
+
+        if(calc_ok == 0x03) {
+            return;
+        }
+
+        x = x >> 1 | (x ^ x >> 2 ^ x >> 3 ^ x >> 5) << 15;
+    }
+}
+
+bool validate_prng_nonce(uint32_t nonce) {
+    uint32_t msb = nonce >> 16;
+    uint32_t lsb = nonce & 0xffff;
+    nonce_distance(&msb, &lsb);
+    return ((65535 - msb + lsb) % 65535) == 16;
+}
+
+MifareNestedNonceType nested_check_nonce_type(FuriHalNfcTxRxContext* tx_rx, uint8_t blockNo) {
+    uint32_t nonces[5] = {};
+    uint8_t sameNonces = 0;
+    uint8_t hardNonces = 0;
+    Crypto1 crypt;
+    Crypto1* crypto = {&crypt};
+
+    for(int32_t i = 0; i < 5; i++) {
+        // Setup nfc poller
+        nfc_activate();
+        furi_hal_nfc_activate_nfca(100, NULL);
+
+        // Start communication
+        bool success = mifare_sendcmd_short(crypto, tx_rx, false, 0x60, blockNo);
+        if(!success) {
+            continue;
+        };
+
+        uint32_t nt = (uint32_t)nfc_util_bytes2num(tx_rx->rx_data, 4);
+        if(nt == 0) continue;
+        if(!validate_prng_nonce(nt)) hardNonces++;
+        nonces[i] = nt;
+
+        nfc_deactivate();
+    }
+
+    for(int32_t i = 0; i < 5; i++) {
+        for(int32_t j = 0; j < 5; j++) {
+            if(i != j && nonces[j] && nonces[i] == nonces[j]) {
+                sameNonces++;
+            }
+        }
+    }
+
+    if(!nonces[4]) {
+        return MifareNestedNonceNoTag;
+    }
+
+    if(sameNonces > 3) {
+        return MifareNestedNonceStatic;
+    }
+
+    if(hardNonces > 3) {
+        return MifareNestedNonceHard;
+    }
+
+    return MifareNestedNonceWeak;
+}
+
+struct nonce_info_static nested_static_nonce_attack(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint8_t targetBlockNo,
+    uint8_t targetKeyType,
+    uint64_t ui64Key) {
+    uint32_t cuid = 0;
+    Crypto1* crypto = malloc(sizeof(Crypto1));
+    struct nonce_info_static r;
+
+    r.full = false;
+
+    // Setup nfc poller
+    nfc_activate();
+    if(!furi_hal_nfc_activate_nfca(200, &cuid)) {
+        free(crypto);
+        return r;
+    }
+
+    r.cuid = cuid;
+
+    uint32_t nt1;
+    uint32_t nt_unused;
+
+    crypto1_reset(crypto);
+
+    mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, false, &nt1);
+
+    if(targetKeyType == 1 && nt1 == 0x009080A2) {
+        r.target_nt[0] = prng_successor(nt1, 161);
+        r.target_nt[1] = prng_successor(nt1, 321);
+    } else {
+        r.target_nt[0] = prng_successor(nt1, 160);
+        r.target_nt[1] = prng_successor(nt1, 320);
+    }
+
+    bool success =
+        mifare_sendcmd_short(crypto, tx_rx, true, 0x60 + (targetKeyType & 0x01), targetBlockNo);
+
+    if(!success) {
+        free(crypto);
+        return r;
+    };
+
+    uint32_t nt2 = nfc_util_bytes2num(tx_rx->rx_data, 4);
+    r.target_ks[0] = nt2 ^ r.target_nt[0];
+
+    nfc_activate();
+
+    if(!furi_hal_nfc_activate_nfca(200, &cuid)) {
+        free(crypto);
+        return r;
+    }
+
+    crypto1_reset(crypto);
+
+    mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, false, &nt1);
+
+    mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, true, &nt_unused);
+
+    success =
+        mifare_sendcmd_short(crypto, tx_rx, true, 0x60 + (targetKeyType & 0x01), targetBlockNo);
+
+    free(crypto);
+
+    if(!success) {
+        return r;
+    };
+
+    uint32_t nt3 = (uint32_t)nfc_util_bytes2num(tx_rx->rx_data, 4);
+
+    r.target_ks[1] = nt3 ^ r.target_nt[1];
+    r.full = true;
+
+    nfc_deactivate();
+
+    return r;
+}
+
+uint32_t nested_calibrate_distance(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint64_t ui64Key,
+    uint32_t delay,
+    bool full) {
+    uint32_t cuid = 0;
+    Crypto1* crypto = malloc(sizeof(Crypto1));
+    uint32_t nt1, nt2, i = 0, davg = 0, dmin = 0, dmax = 0, rtr = 0, unsuccessful_tries = 0;
+    uint32_t max_prng_value = full ? 65565 : 1200;
+    uint32_t rounds = full ? 5 : 17; // full does not require precision
+    uint32_t collected = 0;
+
+    for(rtr = 0; rtr < rounds; rtr++) {
+        nfc_activate();
+        if(!furi_hal_nfc_activate_nfca(200, &cuid)) break;
+
+        if(!mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, false, &nt1)) {
+            continue;
+        }
+
+        furi_delay_us(delay);
+
+        if(!mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, true, &nt2)) {
+            continue;
+        }
+
+        // NXP Mifare is typical around 840, but for some unlicensed/compatible mifare tag this can be 160
+        uint32_t nttmp = prng_successor(nt1, 100);
+
+        for(i = 101; i < max_prng_value; i++) {
+            nttmp = prng_successor(nttmp, 1);
+            if(nttmp == nt2) break;
+        }
+
+        if(i != max_prng_value) {
+            if(rtr != 0) {
+                davg += i;
+                dmin = MIN(dmin, i);
+                dmax = MAX(dmax, i);
+            } else {
+                dmin = dmax = i;
+            }
+
+            FURI_LOG_D(TAG, "Calibrating: ntdist=%lu", i);
+            collected++;
+        } else {
+            unsuccessful_tries++;
+            if(unsuccessful_tries > 12) {
+                free(crypto);
+                FURI_LOG_E(
+                    TAG,
+                    "Tag isn't vulnerable to nested attack (random numbers are not predictable)");
+                return 0;
+            }
+        }
+    }
+
+    if(collected > 1) davg = (davg + (collected - 1) / 2) / (collected - 1);
+
+    davg = MIN(MAX(dmin, davg), dmax);
+
+    FURI_LOG_I(
+        TAG,
+        "Calibration completed: rtr=%lu min=%lu max=%lu avg=%lu collected=%lu",
+        rtr,
+        dmin,
+        dmax,
+        davg,
+        collected);
+
+    free(crypto);
+
+    nfc_deactivate();
+
+    return davg;
+}
+
+struct distance_info nested_calibrate_distance_info(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint64_t ui64Key) {
+    uint32_t cuid = 0;
+    Crypto1* crypto = malloc(sizeof(Crypto1));
+    uint32_t nt1, nt2, i = 0, davg = 0, dmin = 0, dmax = 0, rtr = 0, unsuccessful_tries = 0;
+    struct distance_info r;
+    r.min_prng = 0;
+    r.max_prng = 0;
+    r.mid_prng = 0;
+
+    for(rtr = 0; rtr < 10; rtr++) {
+        nfc_activate();
+        if(!furi_hal_nfc_activate_nfca(200, &cuid)) break;
+
+        mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, false, &nt1);
+
+        mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, true, &nt2);
+
+        // NXP Mifare is typical around 840, but for some unlicensed/compatible mifare tag this can be 160
+        uint32_t nttmp = prng_successor(nt1, 1);
+
+        for(i = 2; i < 65565; i++) {
+            nttmp = prng_successor(nttmp, 1);
+            if(nttmp == nt2) break;
+        }
+
+        if(i != 65565) {
+            if(rtr != 0) {
+                davg += i;
+                if(dmin == 0) {
+                    dmin = i;
+                } else {
+                    dmin = MIN(dmin, i);
+                }
+                dmax = MAX(dmax, i);
+            }
+
+            FURI_LOG_D(TAG, "Calibrating: ntdist=%lu", i);
+        } else {
+            unsuccessful_tries++;
+            if(unsuccessful_tries > 12) {
+                free(crypto);
+
+                FURI_LOG_E(
+                    TAG,
+                    "Tag isn't vulnerable to nested attack (random numbers are not predictable)");
+
+                return r;
+            }
+        }
+    }
+
+    if(rtr > 1) davg = (davg + (rtr - 1) / 2) / (rtr - 1);
+
+    FURI_LOG_I(
+        TAG, "Calibration completed: rtr=%lu min=%lu max=%lu avg=%lu", rtr, dmin, dmax, davg);
+
+    r.min_prng = dmin;
+    r.max_prng = dmax;
+    r.mid_prng = davg;
+
+    free(crypto);
+
+    nfc_deactivate();
+
+    return r;
+}
+
+struct nonce_info nested_attack(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint8_t targetBlockNo,
+    uint8_t targetKeyType,
+    uint64_t ui64Key,
+    uint32_t distance,
+    uint32_t delay) {
+    uint32_t cuid = 0;
+    Crypto1* crypto = malloc(sizeof(Crypto1));
+    uint8_t par_array[4] = {0x00};
+    uint32_t nt1, nt2, ks1, i = 0, j = 0;
+    struct nonce_info r;
+    uint32_t dmin = distance - 2;
+    uint32_t dmax = distance + 2;
+
+    r.full = false;
+
+    for(i = 0; i < 2; i++) { // look for exactly two different nonces
+        r.target_nt[i] = 0;
+
+        while(r.target_nt[i] == 0) { // continue until we have an unambiguous nonce
+            nfc_activate();
+            if(!furi_hal_nfc_activate_nfca(200, &cuid)) {
+                free(crypto);
+                return r;
+            }
+
+            r.cuid = cuid;
+
+            mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, false, &nt1);
+
+            furi_delay_us(delay);
+
+            bool success = mifare_sendcmd_short(
+                crypto, tx_rx, true, 0x60 + (targetKeyType & 0x01), targetBlockNo);
+
+            if(!success) continue;
+
+            nt2 = nfc_util_bytes2num(tx_rx->rx_data, 4);
+
+            // Parity validity check
+            for(j = 0; j < 4; j++) {
+                par_array[j] =
+                    (oddparity8(tx_rx->rx_data[j]) != ((tx_rx->rx_parity[0] >> (7 - j)) & 0x01));
+            }
+
+            uint32_t ncount = 0;
+            uint32_t nttest = prng_successor(nt1, dmin - 1);
+
+            for(j = dmin; j < dmax + 1; j++) {
+                nttest = prng_successor(nttest, 1);
+                ks1 = nt2 ^ nttest;
+
+                if(valid_nonce(nttest, nt2, ks1, par_array)) {
+                    if(ncount > 0) { // we are only interested in disambiguous nonces, try again
+                        FURI_LOG_D(TAG, "Nonce#%lu: dismissed (ambiguous), ntdist=%lu", i + 1, j);
+                        r.target_nt[i] = 0;
+                        break;
+                    }
+
+                    if(delay) {
+                        // will predict later
+                        r.target_nt[i] = nt1;
+                        r.target_ks[i] = nt2;
+                    } else {
+                        r.target_nt[i] = nttest;
+                        r.target_ks[i] = ks1;
+                    }
+
+                    memcpy(&r.parity[i], par_array, 4);
+                    ncount++;
+
+                    if(i == 1 &&
+                       (r.target_nt[0] == r.target_nt[1] ||
+                        r.target_ks[0] == r.target_ks[1])) { // we need two different nonces
+                        r.target_nt[i] = 0;
+                        FURI_LOG_D(TAG, "Nonce#2: dismissed (= nonce#1), ntdist=%lu", j);
+                        break;
+                    }
+
+                    FURI_LOG_D(TAG, "Nonce#%lu: valid, ntdist=%lu", i + 1, j);
+                }
+            }
+
+            if(r.target_nt[i] == 0 && j == dmax + 1) {
+                FURI_LOG_D(TAG, "Nonce#%lu: dismissed (all invalid)", i + 1);
+            }
+        }
+    }
+
+    if(r.target_nt[0] && r.target_nt[1]) {
+        r.full = true;
+    }
+
+    free(crypto);
+
+    nfc_deactivate();
+
+    return r;
+}
+
+struct nonce_info_hard nested_hard_nonce_attack(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint8_t targetBlockNo,
+    uint8_t targetKeyType,
+    uint64_t ui64Key,
+    uint32_t* found,
+    uint32_t* first_byte_sum,
+    Stream* file_stream) {
+    uint32_t cuid = 0;
+    uint8_t same = 0;
+    uint64_t previous = 0;
+    Crypto1* crypto = malloc(sizeof(Crypto1));
+    uint8_t par_array[4] = {0x00};
+    struct nonce_info_hard r;
+    r.full = false;
+    r.static_encrypted = false;
+
+    for(uint32_t i = 0; i < 8; i++) {
+        nfc_activate();
+        if(!furi_hal_nfc_activate_nfca(200, &cuid)) {
+            free(crypto);
+            return r;
+        }
+
+        r.cuid = cuid;
+
+        if(!mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, false, NULL))
+            continue;
+
+        if(!mifare_sendcmd_short(crypto, tx_rx, true, 0x60 + (targetKeyType & 0x01), targetBlockNo))
+            continue;
+
+        uint64_t nt = nfc_util_bytes2num(tx_rx->rx_data, 4);
+
+        for(uint32_t j = 0; j < 4; j++) {
+            par_array[j] =
+                (oddparity8(tx_rx->rx_data[j]) != ((tx_rx->rx_parity[0] >> (7 - j)) & 0x01));
+        }
+
+        uint8_t pbits = 0;
+        for(uint8_t j = 0; j < 4; j++) {
+            uint8_t p = oddparity8(tx_rx->rx_data[j]);
+            if(par_array[j]) {
+                p ^= 1;
+            }
+            pbits <<= 1;
+            pbits |= p;
+        }
+
+        // update unique nonces
+        if(!found[tx_rx->rx_data[0]]) {
+            *first_byte_sum += evenparity32(pbits & 0x08);
+            found[tx_rx->rx_data[0]]++;
+        }
+
+        if(nt == previous) {
+            same++;
+        }
+
+        previous = nt;
+
+        FuriString* row = furi_string_alloc_printf("%llu|%u\n", nt, pbits);
+        stream_write_string(file_stream, row);
+
+        FURI_LOG_D(TAG, "Accured %lu/8 nonces", i + 1);
+        furi_string_free(row);
+    }
+
+    if(same > 4) {
+        r.static_encrypted = true;
+    }
+
+    r.full = true;
+
+    free(crypto);
+
+    nfc_deactivate();
+
+    return r;
+}
+
+NestedCheckKeyResult nested_check_key(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint64_t ui64Key) {
+    uint32_t cuid = 0;
+    uint32_t nt;
+
+    nfc_activate();
+    if(!furi_hal_nfc_activate_nfca(200, &cuid)) return NestedCheckKeyNoTag;
+
+    FURI_LOG_D(
+        TAG, "Checking %c key %012llX for block %u", !keyType ? 'A' : 'B', ui64Key, blockNo);
+
+    Crypto1* crypto = malloc(sizeof(Crypto1));
+
+    bool success =
+        mifare_classic_authex(crypto, tx_rx, cuid, blockNo, keyType, ui64Key, false, &nt);
+
+    free(crypto);
+
+    nfc_deactivate();
+
+    return success ? NestedCheckKeyValid : NestedCheckKeyInvalid;
+}
+
+bool nested_check_block(FuriHalNfcTxRxContext* tx_rx, uint8_t blockNo, uint8_t keyType) {
+    uint32_t cuid = 0;
+
+    nfc_activate();
+    if(!furi_hal_nfc_activate_nfca(200, &cuid)) return false;
+
+    Crypto1* crypto = malloc(sizeof(Crypto1));
+
+    bool success = mifare_sendcmd_short(crypto, tx_rx, false, 0x60 + (keyType & 0x01), blockNo);
+
+    free(crypto);
+
+    nfc_deactivate();
+
+    return success;
+}
+
+void nested_get_data(FuriHalNfcDevData* dev_data) {
+    nfc_activate();
+    furi_hal_nfc_detect(dev_data, 400);
+    nfc_deactivate();
+}
+
+void nfc_activate() {
+    nfc_deactivate();
+
+    // Setup nfc poller
+    furi_hal_nfc_exit_sleep();
+    furi_hal_nfc_ll_txrx_on();
+    furi_hal_nfc_ll_poll();
+    if(furi_hal_nfc_ll_set_mode(
+           FuriHalNfcModePollNfca, FuriHalNfcBitrate106, FuriHalNfcBitrate106) !=
+       FuriHalNfcReturnOk)
+        return;
+
+    furi_hal_nfc_ll_set_fdt_listen(FURI_HAL_NFC_LL_FDT_LISTEN_NFCA_POLLER);
+    furi_hal_nfc_ll_set_fdt_poll(FURI_HAL_NFC_LL_FDT_POLL_NFCA_POLLER);
+    furi_hal_nfc_ll_set_error_handling(FuriHalNfcErrorHandlingNfc);
+    furi_hal_nfc_ll_set_guard_time(FURI_HAL_NFC_LL_GT_NFCA);
+}
+
+void nfc_deactivate() {
+    furi_hal_nfc_ll_txrx_off();
+    furi_hal_nfc_start_sleep();
+    furi_hal_nfc_sleep();
+}

applications/external/mifare_nested/lib/nested/nested.h

@@ -0,0 +1,118 @@
+#pragma once
+
+#include <lib/nfc/protocols/nfc_util.h>
+#include <lib/nfc/protocols/mifare_classic.h>
+#include <lib/nfc/protocols/crypto1.h>
+
+#include <storage/storage.h>
+#include <stream/stream.h>
+#include <stream/buffered_file_stream.h>
+
+typedef enum {
+    MifareNestedNonceNoTag,
+    MifareNestedNonceWeak,
+    MifareNestedNonceStatic,
+    MifareNestedNonceHard,
+} MifareNestedNonceType;
+
+MifareNestedNonceType nested_check_nonce_type(FuriHalNfcTxRxContext* tx_rx, uint8_t blockNo);
+
+struct nonce_info_static {
+    uint32_t cuid;
+    uint32_t target_nt[2];
+    uint32_t target_ks[2];
+    bool full;
+};
+
+struct nonce_info_hard {
+    uint32_t cuid;
+    bool static_encrypted;
+    bool full;
+};
+
+struct nonce_info {
+    uint32_t cuid;
+    uint32_t target_nt[2];
+    uint32_t target_ks[2];
+    uint8_t parity[2][4];
+    bool full;
+};
+
+struct distance_info {
+    uint32_t min_prng;
+    uint32_t max_prng;
+    uint32_t mid_prng;
+};
+
+struct nonce_info_static nested_static_nonce_attack(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint8_t targetBlockNo,
+    uint8_t targetKeyType,
+    uint64_t ui64Key);
+
+struct nonce_info nested_attack(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint8_t targetBlockNo,
+    uint8_t targetKeyType,
+    uint64_t ui64Key,
+    uint32_t distance,
+    uint32_t delay);
+
+struct nonce_info_hard nested_hard_nonce_attack(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint8_t targetBlockNo,
+    uint8_t targetKeyType,
+    uint64_t ui64Key,
+    uint32_t* found,
+    uint32_t* first_byte_sum,
+    Stream* file_stream);
+
+uint32_t nested_calibrate_distance(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint64_t ui64Key,
+    uint32_t delay,
+    bool full);
+
+struct distance_info nested_calibrate_distance_info(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint64_t ui64Key);
+
+typedef enum {
+    NestedCheckKeyNoTag,
+    NestedCheckKeyValid,
+    NestedCheckKeyInvalid,
+} NestedCheckKeyResult;
+
+NestedCheckKeyResult nested_check_key(
+    FuriHalNfcTxRxContext* tx_rx,
+    uint8_t blockNo,
+    uint8_t keyType,
+    uint64_t ui64Key);
+
+bool nested_check_block(FuriHalNfcTxRxContext* tx_rx, uint8_t blockNo, uint8_t keyType);
+
+void nested_get_data();
+
+bool mifare_classic_authex(
+    Crypto1* crypto,
+    FuriHalNfcTxRxContext* tx_rx,
+    uint32_t uid,
+    uint32_t blockNo,
+    uint32_t keyType,
+    uint64_t ui64Key,
+    bool isNested,
+    uint32_t* ntptr);
+
+void nfc_activate();
+
+void nfc_deactivate();

applications/external/mifare_nested/lib/parity/parity.c

@@ -0,0 +1,71 @@
+#include "parity.h"
+
+uint32_t __paritysi2(uint32_t a) {
+    uint32_t x = (uint32_t)a;
+    x ^= x >> 16;
+    x ^= x >> 8;
+    x ^= x >> 4;
+    return (0x6996 >> (x & 0xF)) & 1;
+}
+
+static const uint8_t g_odd_byte_parity[256] = {
+    1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0,
+    1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1,
+    1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1,
+    0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0,
+    1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1,
+    0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0,
+    0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1,
+    0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
+    1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1};
+
+#define ODD_PARITY8(x) \
+    { g_odd_byte_parity[x] }
+#define EVEN_PARITY8(x) \
+    { !g_odd_byte_parity[x] }
+
+uint8_t oddparity8(const uint8_t x) {
+    return g_odd_byte_parity[x];
+}
+
+uint8_t evenparity8(const uint8_t x) {
+    return !g_odd_byte_parity[x];
+}
+
+uint8_t evenparity16(uint16_t x) {
+#if !defined __GNUC__
+    x ^= x >> 8;
+    return EVEN_PARITY8(x);
+#else
+    return (__builtin_parity(x) & 0xFF);
+#endif
+}
+
+uint8_t oddparity16(uint16_t x) {
+#if !defined __GNUC__
+    x ^= x >> 8;
+    return ODD_PARITY8(x);
+#else
+    return !__builtin_parity(x);
+#endif
+}
+
+uint8_t evenparity32(uint32_t x) {
+#if !defined __GNUC__
+    x ^= x >> 16;
+    x ^= x >> 8;
+    return EVEN_PARITY8(x);
+#else
+    return (__builtin_parity(x) & 0xFF);
+#endif
+}
+
+uint8_t oddparity32(uint32_t x) {
+#if !defined __GNUC__
+    x ^= x >> 16;
+    x ^= x >> 8;
+    return ODD_PARITY8(x);
+#else
+    return !__builtin_parity(x);
+#endif
+}

applications/external/mifare_nested/lib/parity/parity.h

@@ -0,0 +1,10 @@
+#include "stdint.h"
+
+uint8_t oddparity8(const uint8_t x);
+uint8_t evenparity8(const uint8_t x);
+
+uint8_t evenparity16(uint16_t x);
+uint8_t oddparity16(uint16_t x);
+
+uint8_t evenparity32(uint32_t x);
+uint8_t oddparity32(uint32_t x);

applications/external/mifare_nested/mifare_nested.c

@@ -0,0 +1,408 @@
+#include "mifare_nested_i.h"
+#include <gui/elements.h>
+
+bool mifare_nested_custom_event_callback(void* context, uint32_t event) {
+    furi_assert(context);
+    MifareNested* mifare_nested = context;
+    return scene_manager_handle_custom_event(mifare_nested->scene_manager, event);
+}
+
+bool mifare_nested_back_event_callback(void* context) {
+    furi_assert(context);
+    MifareNested* mifare_nested = context;
+    return scene_manager_handle_back_event(mifare_nested->scene_manager);
+}
+
+void mifare_nested_tick_event_callback(void* context) {
+    furi_assert(context);
+    MifareNested* mifare_nested = context;
+    scene_manager_handle_tick_event(mifare_nested->scene_manager);
+}
+
+void mifare_nested_show_loading_popup(void* context, bool show) {
+    MifareNested* mifare_nested = context;
+    TaskHandle_t timer_task = xTaskGetHandle(configTIMER_SERVICE_TASK_NAME);
+
+    if(show) {
+        // Raise timer priority so that animations can play
+        vTaskPrioritySet(timer_task, configMAX_PRIORITIES - 1);
+        view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewLoading);
+    } else {
+        // Restore default timer priority
+        vTaskPrioritySet(timer_task, configTIMER_TASK_PRIORITY);
+    }
+}
+
+NestedState* collection_alloc() {
+    NestedState* nested = malloc(sizeof(NestedState));
+    nested->view = view_alloc();
+    view_allocate_model(nested->view, ViewModelTypeLocking, sizeof(NestedAttackViewModel));
+    with_view_model(
+        nested->view,
+        NestedAttackViewModel * model,
+        {
+            model->header = furi_string_alloc();
+            furi_string_set(model->header, "Collecting nonces");
+            model->keys_count = 0;
+            model->hardnested_states = 0;
+            model->lost_tag = false;
+            model->calibrating = false;
+            model->need_prediction = false;
+            model->hardnested = false;
+        },
+        false);
+
+    return nested;
+}
+
+CheckKeysState* check_keys_alloc() {
+    CheckKeysState* state = malloc(sizeof(CheckKeysState));
+    state->view = view_alloc();
+    view_allocate_model(state->view, ViewModelTypeLocking, sizeof(CheckKeysViewModel));
+    with_view_model(
+        state->view,
+        CheckKeysViewModel * model,
+        {
+            model->header = furi_string_alloc();
+            furi_string_set(model->header, "Checking keys");
+            model->lost_tag = false;
+        },
+        false);
+
+    return state;
+}
+
+static void nested_draw_callback(Canvas* canvas, void* model) {
+    NestedAttackViewModel* m = model;
+
+    if(m->lost_tag) {
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str_aligned(canvas, 64, 4, AlignCenter, AlignTop, "Lost the tag!");
+        canvas_set_font(canvas, FontSecondary);
+        elements_multiline_text_aligned(
+            canvas, 64, 23, AlignCenter, AlignTop, "Make sure the tag is\npositioned correctly.");
+    } else if(m->calibrating) {
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str_aligned(canvas, 64, 4, AlignCenter, AlignTop, "Calibrating...");
+        canvas_set_font(canvas, FontSecondary);
+        if(!m->need_prediction) {
+            elements_multiline_text_aligned(
+                canvas, 64, 23, AlignCenter, AlignTop, "Don't touch or move\nFlipper/Tag!");
+        } else {
+            elements_multiline_text_aligned(
+                canvas, 64, 18, AlignCenter, AlignTop, "Don't touch or move tag!");
+            canvas_set_font(canvas, FontPrimary);
+            elements_multiline_text_aligned(
+                canvas, 64, 30, AlignCenter, AlignTop, "Calibration will take\nmore time");
+        }
+    } else if(m->hardnested) {
+        char draw_str[32] = {};
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str_aligned(
+            canvas, 64, 2, AlignCenter, AlignTop, furi_string_get_cstr(m->header));
+        canvas_set_font(canvas, FontSecondary);
+
+        float progress =
+            m->keys_count == 0 ? 0 : (float)(m->nonces_collected) / (float)(m->keys_count);
+
+        if(progress > 1.0) {
+            progress = 1.0;
+        }
+
+        elements_progress_bar(canvas, 5, 15, 120, progress);
+        canvas_set_font(canvas, FontSecondary);
+        snprintf(
+            draw_str,
+            sizeof(draw_str),
+            "Nonces collected: %lu/%lu",
+            m->nonces_collected,
+            m->keys_count);
+        canvas_draw_str_aligned(canvas, 1, 28, AlignLeft, AlignTop, draw_str);
+        snprintf(draw_str, sizeof(draw_str), "States found: %lu/256", m->hardnested_states);
+        canvas_draw_str_aligned(canvas, 1, 40, AlignLeft, AlignTop, draw_str);
+    } else {
+        char draw_str[32] = {};
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str_aligned(
+            canvas, 64, 2, AlignCenter, AlignTop, furi_string_get_cstr(m->header));
+        canvas_set_font(canvas, FontSecondary);
+
+        float progress =
+            m->keys_count == 0 ? 0 : (float)(m->nonces_collected) / (float)(m->keys_count);
+
+        if(progress > 1.0) {
+            progress = 1.0;
+        }
+
+        elements_progress_bar(canvas, 5, 15, 120, progress);
+        canvas_set_font(canvas, FontSecondary);
+        snprintf(
+            draw_str,
+            sizeof(draw_str),
+            "Nonces collected: %lu/%lu",
+            m->nonces_collected,
+            m->keys_count);
+        canvas_draw_str_aligned(canvas, 1, 28, AlignLeft, AlignTop, draw_str);
+    }
+
+    elements_button_center(canvas, "Stop");
+}
+
+static void check_keys_draw_callback(Canvas* canvas, void* model) {
+    CheckKeysViewModel* m = model;
+
+    if(m->lost_tag) {
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str_aligned(canvas, 64, 4, AlignCenter, AlignTop, "Lost the tag!");
+        canvas_set_font(canvas, FontSecondary);
+        elements_multiline_text_aligned(
+            canvas, 64, 23, AlignCenter, AlignTop, "Make sure the tag is\npositioned correctly.");
+    } else if(m->processing_keys) {
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str_aligned(canvas, 64, 4, AlignCenter, AlignTop, "Processing keys...");
+        canvas_set_font(canvas, FontSecondary);
+        elements_multiline_text_aligned(
+            canvas, 64, 23, AlignCenter, AlignTop, "Checking which keys you\nalready have...");
+    } else {
+        char draw_str[32] = {};
+        char draw_sub_str[32] = {};
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str_aligned(
+            canvas, 64, 2, AlignCenter, AlignTop, furi_string_get_cstr(m->header));
+        canvas_set_font(canvas, FontSecondary);
+
+        float progress = m->keys_count == 0 ? 0 :
+                                              (float)(m->keys_checked) / (float)(m->keys_count);
+
+        if(progress > 1.0) {
+            progress = 1.0;
+        }
+
+        elements_progress_bar(canvas, 5, 15, 120, progress);
+        canvas_set_font(canvas, FontSecondary);
+        snprintf(
+            draw_str, sizeof(draw_str), "Keys checked: %lu/%lu", m->keys_checked, m->keys_count);
+        canvas_draw_str_aligned(canvas, 1, 28, AlignLeft, AlignTop, draw_str);
+        snprintf(
+            draw_sub_str,
+            sizeof(draw_sub_str),
+            "Keys found: %lu/%lu",
+            m->keys_found,
+            m->keys_total);
+        canvas_draw_str_aligned(canvas, 1, 40, AlignLeft, AlignTop, draw_sub_str);
+    }
+
+    elements_button_center(canvas, "Stop");
+}
+
+static bool nested_input_callback(InputEvent* event, void* context) {
+    MifareNested* mifare_nested = context;
+
+    bool consumed = false;
+
+    if(event->type == InputTypeShort && (event->key == InputKeyBack || event->key == InputKeyOk)) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+MifareNested* mifare_nested_alloc() {
+    MifareNested* mifare_nested = malloc(sizeof(MifareNested));
+
+    mifare_nested->worker = mifare_nested_worker_alloc();
+    mifare_nested->view_dispatcher = view_dispatcher_alloc();
+    mifare_nested->scene_manager =
+        scene_manager_alloc(&mifare_nested_scene_handlers, mifare_nested);
+    view_dispatcher_enable_queue(mifare_nested->view_dispatcher);
+    view_dispatcher_set_event_callback_context(mifare_nested->view_dispatcher, mifare_nested);
+    view_dispatcher_set_custom_event_callback(
+        mifare_nested->view_dispatcher, mifare_nested_custom_event_callback);
+    view_dispatcher_set_navigation_event_callback(
+        mifare_nested->view_dispatcher, mifare_nested_back_event_callback);
+    view_dispatcher_set_tick_event_callback(
+        mifare_nested->view_dispatcher, mifare_nested_tick_event_callback, 100);
+
+    // Nfc device
+    mifare_nested->nfc_dev = nfc_device_alloc();
+
+    // Open GUI record
+    mifare_nested->gui = furi_record_open(RECORD_GUI);
+    view_dispatcher_attach_to_gui(
+        mifare_nested->view_dispatcher, mifare_nested->gui, ViewDispatcherTypeFullscreen);
+
+    // Open Notification record
+    mifare_nested->notifications = furi_record_open(RECORD_NOTIFICATION);
+
+    // Submenu
+    mifare_nested->submenu = submenu_alloc();
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher,
+        MifareNestedViewMenu,
+        submenu_get_view(mifare_nested->submenu));
+
+    // Popup
+    mifare_nested->popup = popup_alloc();
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher,
+        MifareNestedViewPopup,
+        popup_get_view(mifare_nested->popup));
+
+    // Loading
+    mifare_nested->loading = loading_alloc();
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher,
+        MifareNestedViewLoading,
+        loading_get_view(mifare_nested->loading));
+
+    // Text Input
+    mifare_nested->text_input = text_input_alloc();
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher,
+        MifareNestedViewTextInput,
+        text_input_get_view(mifare_nested->text_input));
+
+    // Custom Widget
+    mifare_nested->widget = widget_alloc();
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher,
+        MifareNestedViewWidget,
+        widget_get_view(mifare_nested->widget));
+
+    // Variable Item List
+    mifare_nested->variable_item_list = variable_item_list_alloc();
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher,
+        MifareNestedViewVariableList,
+        variable_item_list_get_view(mifare_nested->variable_item_list));
+
+    // Nested attack state
+    NestedState* plugin_state = collection_alloc();
+    view_set_context(plugin_state->view, mifare_nested);
+    mifare_nested->nested_state = plugin_state;
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher, MifareNestedViewCollecting, plugin_state->view);
+
+    // Check keys attack state
+    CheckKeysState* keys_state = check_keys_alloc();
+    view_set_context(keys_state->view, mifare_nested);
+    mifare_nested->keys_state = keys_state;
+    view_dispatcher_add_view(
+        mifare_nested->view_dispatcher, MifareNestedViewCheckKeys, keys_state->view);
+
+    KeyInfo_t* key_info = malloc(sizeof(KeyInfo_t));
+    mifare_nested->keys = key_info;
+
+    MifareNestedSettings* settings = malloc(sizeof(MifareNestedSettings));
+    settings->only_hardnested = false;
+    mifare_nested->settings = settings;
+
+    view_set_draw_callback(plugin_state->view, nested_draw_callback);
+    view_set_input_callback(plugin_state->view, nested_input_callback);
+
+    view_set_draw_callback(keys_state->view, check_keys_draw_callback);
+    view_set_input_callback(keys_state->view, nested_input_callback);
+
+    mifare_nested->collecting_type = MifareNestedWorkerStateReady;
+    mifare_nested->run = NestedRunIdle;
+
+    return mifare_nested;
+}
+
+void mifare_nested_free(MifareNested* mifare_nested) {
+    furi_assert(mifare_nested);
+
+    // Nfc device
+    nfc_device_free(mifare_nested->nfc_dev);
+
+    // Submenu
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewMenu);
+    submenu_free(mifare_nested->submenu);
+
+    // Popup
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewPopup);
+    popup_free(mifare_nested->popup);
+
+    // Loading
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewLoading);
+    loading_free(mifare_nested->loading);
+
+    // TextInput
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewTextInput);
+    text_input_free(mifare_nested->text_input);
+
+    // Custom Widget
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+    widget_free(mifare_nested->widget);
+
+    // Variable Item List
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewVariableList);
+    variable_item_list_free(mifare_nested->variable_item_list);
+
+    // Nested
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewCollecting);
+
+    // Check keys
+    view_dispatcher_remove_view(mifare_nested->view_dispatcher, MifareNestedViewCheckKeys);
+
+    // Nonces states
+    free(mifare_nested->nonces);
+    free(mifare_nested->nested_state);
+
+    // Keys
+    free(mifare_nested->keys);
+
+    // Settings
+    free(mifare_nested->settings);
+
+    // Worker
+    mifare_nested_worker_stop(mifare_nested->worker);
+    mifare_nested_worker_free(mifare_nested->worker);
+
+    // View Dispatcher
+    view_dispatcher_free(mifare_nested->view_dispatcher);
+
+    // Scene Manager
+    scene_manager_free(mifare_nested->scene_manager);
+
+    // GUI
+    furi_record_close(RECORD_GUI);
+    mifare_nested->gui = NULL;
+
+    // Notifications
+    furi_record_close(RECORD_NOTIFICATION);
+    mifare_nested->notifications = NULL;
+
+    free(mifare_nested);
+}
+
+void mifare_nested_blink_start(MifareNested* mifare_nested) {
+    notification_message(mifare_nested->notifications, &mifare_nested_sequence_blink_start_blue);
+}
+
+void mifare_nested_blink_calibration_start(MifareNested* mifare_nested) {
+    notification_message(
+        mifare_nested->notifications, &mifare_nested_sequence_blink_start_magenta);
+}
+
+void mifare_nested_blink_nonce_collection_start(MifareNested* mifare_nested) {
+    notification_message(mifare_nested->notifications, &mifare_nested_sequence_blink_start_yellow);
+}
+
+void mifare_nested_blink_stop(MifareNested* mifare_nested) {
+    notification_message(mifare_nested->notifications, &mifare_nested_sequence_blink_stop);
+}
+
+int32_t mifare_nested_app(void* p) {
+    UNUSED(p);
+    MifareNested* mifare_nested = mifare_nested_alloc();
+
+    scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneStart);
+
+    view_dispatcher_run(mifare_nested->view_dispatcher);
+
+    mifare_nested_free(mifare_nested);
+
+    return 0;
+}

applications/external/mifare_nested/mifare_nested.h

@@ -0,0 +1,3 @@
+#pragma once
+
+typedef struct MifareNested MifareNested;

applications/external/mifare_nested/mifare_nested_i.h

@@ -0,0 +1,180 @@
+#pragma once
+#include "mifare_nested.h"
+#include "mifare_nested_worker.h"
+#include "lib/nested/nested.h"
+#include <furi.h>
+#include <gui/gui.h>
+#include <gui/view_dispatcher.h>
+#include <gui/scene_manager.h>
+#include <notification/notification_messages.h>
+#include <gui/modules/submenu.h>
+#include <gui/modules/popup.h>
+#include <gui/modules/loading.h>
+#include <gui/modules/text_input.h>
+#include <gui/modules/widget.h>
+#include <input/input.h>
+#include "scenes/mifare_nested_scene.h"
+#include <storage/storage.h>
+#include <lib/toolbox/path.h>
+#include <lib/nfc/nfc_device.h>
+#include <lib/toolbox/value_index.h>
+#include <gui/modules/variable_item_list.h>
+#include "mifare_nested_icons.h"
+
+#define NESTED_VERSION_APP "1.4.6"
+#define NESTED_GITHUB_LINK "https://github.com/AloneLiberty/FlipperNested"
+#define NESTED_RECOVER_KEYS_GITHUB_LINK "https://github.com/AloneLiberty/FlipperNestedRecovery"
+#define NESTED_NONCE_FORMAT_VERSION "3"
+#define NESTED_AUTHOR "@AloneLiberty (t.me/libertydev)"
+
+enum MifareNestedCustomEvent {
+    // Reserve first 100 events for button types and indexes, starting from 0
+    MifareNestedCustomEventReserved = 100,
+
+    MifareNestedCustomEventViewExit,
+    MifareNestedCustomEventWorkerExit,
+    MifareNestedCustomEventByteInputDone,
+    MifareNestedCustomEventTextInputDone,
+    MifareNestedCustomEventSceneSettingLock
+};
+
+typedef void (*NestedCallback)(void* context);
+
+typedef struct {
+    FuriMutex* mutex;
+    FuriMessageQueue* event_queue;
+    ViewPort* view_port;
+    View* view;
+    NestedCallback callback;
+    void* context;
+} NestedState;
+
+typedef void (*CheckKeysCallback)(void* context);
+
+typedef struct {
+    FuriMutex* mutex;
+    FuriMessageQueue* event_queue;
+    ViewPort* view_port;
+    View* view;
+    CheckKeysCallback callback;
+    void* context;
+} CheckKeysState;
+
+typedef enum {
+    EventTypeTick,
+    EventTypeKey,
+} EventType;
+
+typedef struct {
+    EventType type;
+    InputEvent input;
+} PluginEvent;
+
+typedef struct {
+    bool only_hardnested;
+} MifareNestedSettings;
+
+typedef enum { NestedRunIdle, NestedRunCheckKeys, NestedRunAttack } NestedRunNext;
+
+struct MifareNested {
+    MifareNestedWorker* worker;
+    ViewDispatcher* view_dispatcher;
+    Gui* gui;
+    NotificationApp* notifications;
+    SceneManager* scene_manager;
+    NfcDevice* nfc_dev;
+    VariableItemList* variable_item_list;
+    MifareNestedSettings* settings;
+    FuriString* text_box_store;
+
+    // Common Views
+    Submenu* submenu;
+    Popup* popup;
+    Loading* loading;
+    TextInput* text_input;
+    Widget* widget;
+
+    NonceList_t* nonces;
+    KeyInfo_t* keys;
+
+    NestedState* nested_state;
+    CheckKeysState* keys_state;
+
+    MifareNestedWorkerState collecting_type;
+
+    NestedRunNext run;
+};
+
+typedef enum {
+    MifareNestedViewMenu,
+    MifareNestedViewPopup,
+    MifareNestedViewLoading,
+    MifareNestedViewTextInput,
+    MifareNestedViewWidget,
+    MifareNestedViewVariableList,
+    MifareNestedViewCollecting,
+    MifareNestedViewCheckKeys,
+} MifareNestedView;
+
+typedef struct {
+    FuriString* header;
+    uint32_t keys_count;
+    uint32_t nonces_collected;
+    uint32_t hardnested_states;
+    bool lost_tag;
+    bool calibrating;
+    bool need_prediction;
+    bool hardnested;
+} NestedAttackViewModel;
+
+typedef struct {
+    FuriString* header;
+    uint32_t keys_count;
+    uint32_t keys_checked;
+    uint32_t keys_found;
+    uint32_t keys_total;
+    bool lost_tag;
+    bool processing_keys;
+} CheckKeysViewModel;
+
+static const NotificationSequence mifare_nested_sequence_blink_start_blue = {
+    &message_blink_start_10,
+    &message_blink_set_color_blue,
+    &message_do_not_reset,
+    NULL,
+};
+
+static const NotificationSequence mifare_nested_sequence_blink_start_magenta = {
+    &message_blink_start_10,
+    &message_blink_set_color_magenta,
+    &message_do_not_reset,
+    NULL,
+};
+
+static const NotificationSequence mifare_nested_sequence_blink_start_yellow = {
+    &message_blink_start_10,
+    &message_blink_set_color_yellow,
+    &message_do_not_reset,
+    NULL,
+};
+
+static const NotificationSequence mifare_nested_sequence_blink_stop = {
+    &message_blink_stop,
+    NULL,
+};
+
+MifareNested* mifare_nested_alloc();
+
+void mifare_nested_text_store_set(MifareNested* mifare_nested, const char* text, ...);
+
+void mifare_nested_text_store_clear(MifareNested* mifare_nested);
+
+void mifare_nested_blink_start(MifareNested* mifare_nested);
+
+void mifare_nested_blink_calibration_start(MifareNested* mifare_nested);
+
+void mifare_nested_blink_nonce_collection_start(MifareNested* mifare_nested);
+
+void mifare_nested_blink_stop(MifareNested* mifare_nested);
+
+void mifare_nested_show_loading_popup(void* context, bool show);

applications/external/mifare_nested/mifare_nested_worker.h

@@ -0,0 +1,89 @@
+#pragma once
+
+#include <lib/nfc/nfc_device.h>
+
+#define NESTED_FOLDER EXT_PATH("nfc/.nested")
+
+typedef struct MifareNestedWorker MifareNestedWorker;
+
+typedef enum {
+    MifareNestedWorkerStateReady,
+
+    MifareNestedWorkerStateCheck,
+    MifareNestedWorkerStateCollecting,
+    MifareNestedWorkerStateCollectingStatic,
+    MifareNestedWorkerStateCollectingHard,
+    MifareNestedWorkerStateValidating,
+
+    MifareNestedWorkerStateStop,
+} MifareNestedWorkerState;
+
+typedef enum {
+    MifareNestedWorkerEventReserved = 1000,
+
+    MifareNestedWorkerEventNoTagDetected,
+    MifareNestedWorkerEventNoncesCollected,
+    MifareNestedWorkerEventCollecting,
+
+    MifareNestedWorkerEventNewNonce,
+    MifareNestedWorkerEventKeyChecked,
+    MifareNestedWorkerEventKeysFound,
+    MifareNestedWorkerEventNeedKey,
+    MifareNestedWorkerEventAttackFailed,
+    MifareNestedWorkerEventCalibrating,
+    MifareNestedWorkerEventStaticEncryptedNonce,
+    MifareNestedWorkerEventNeedPrediction,
+    MifareNestedWorkerEventProcessingKeys,
+    MifareNestedWorkerEventNeedKeyRecovery,
+    MifareNestedWorkerEventNeedCollection,
+    MifareNestedWorkerEventHardnestedStatesFound
+} MifareNestedWorkerEvent;
+
+typedef bool (*MifareNestedWorkerCallback)(MifareNestedWorkerEvent event, void* context);
+
+MifareNestedWorker* mifare_nested_worker_alloc();
+
+void mifare_nested_worker_change_state(
+    MifareNestedWorker* mifare_nested_worker,
+    MifareNestedWorkerState state);
+
+void mifare_nested_worker_free(MifareNestedWorker* mifare_nested_worker);
+
+void mifare_nested_worker_stop(MifareNestedWorker* mifare_nested_worker);
+
+void mifare_nested_worker_start(
+    MifareNestedWorker* mifare_nested_worker,
+    MifareNestedWorkerState state,
+    NfcDeviceData* dev_data,
+    MifareNestedWorkerCallback callback,
+    void* context);
+
+typedef struct {
+    uint32_t key_type;
+    uint32_t block;
+    uint32_t target_nt[2];
+    uint32_t target_ks[2];
+    uint8_t parity[2][4];
+    bool collected;
+    bool skipped;
+    bool hardnested;
+} Nonces;
+
+typedef struct {
+    uint32_t cuid;
+    uint32_t sector_count;
+    // 40 (or 16/5) sectors, 2 keys (A/B), 3 tries
+    Nonces* nonces[40][2][3];
+    uint32_t tries;
+    // unique first bytes
+    uint32_t hardnested_states;
+} NonceList_t;
+
+typedef struct {
+    uint32_t total_keys;
+    uint32_t checked_keys;
+    uint32_t found_keys;
+    uint32_t added_keys;
+    uint32_t sector_keys;
+    bool tag_lost;
+} KeyInfo_t;

applications/external/mifare_nested/mifare_nested_worker_i.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <furi.h>
+#include "mifare_nested_i.h"
+#include "mifare_nested_worker.h"
+
+struct MifareNestedWorker {
+    FuriThread* thread;
+
+    NfcDeviceData* dev_data;
+
+    MifareNestedWorkerCallback callback;
+    MifareNested* context;
+
+    MifareNestedWorkerState state;
+};
+
+int32_t mifare_nested_worker_task(void* context);
+
+void mifare_nested_worker_check(MifareNestedWorker* mifare_nested_worker);
+
+void mifare_nested_worker_collect_nonces(MifareNestedWorker* mifare_nested_worker);
+
+void mifare_nested_worker_collect_nonces_static(MifareNestedWorker* mifare_nested_worker);
+
+void mifare_nested_worker_collect_nonces_hard(MifareNestedWorker* mifare_nested_worker);
+
+void mifare_nested_worker_check_keys(MifareNestedWorker* mifare_nested_worker);

applications/external/mifare_nested/scenes/mifare_nested_scene.c

@@ -0,0 +1,30 @@
+#include "mifare_nested_scene.h"
+
+// Generate scene on_enter handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_enter,
+void (*const mifare_nested_on_enter_handlers[])(void*) = {
+#include "mifare_nested_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Generate scene on_event handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_event,
+bool (*const mifare_nested_on_event_handlers[])(void* context, SceneManagerEvent event) = {
+#include "mifare_nested_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Generate scene on_exit handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_exit,
+void (*const mifare_nested_on_exit_handlers[])(void* context) = {
+#include "mifare_nested_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Initialize scene handlers configuration structure
+const SceneManagerHandlers mifare_nested_scene_handlers = {
+    .on_enter_handlers = mifare_nested_on_enter_handlers,
+    .on_event_handlers = mifare_nested_on_event_handlers,
+    .on_exit_handlers = mifare_nested_on_exit_handlers,
+    .scene_num = MifareNestedSceneNum,
+};

applications/external/mifare_nested/scenes/mifare_nested_scene.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <gui/scene_manager.h>
+
+// Generate scene id and total number
+#define ADD_SCENE(prefix, name, id) MifareNestedScene##id,
+typedef enum {
+#include "mifare_nested_scene_config.h"
+    MifareNestedSceneNum,
+} MifareNestedScene;
+#undef ADD_SCENE
+
+extern const SceneManagerHandlers mifare_nested_scene_handlers;
+
+// Generate scene on_enter handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_enter(void*);
+#include "mifare_nested_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_event handlers declaration
+#define ADD_SCENE(prefix, name, id) \
+    bool prefix##_scene_##name##_on_event(void* context, SceneManagerEvent event);
+#include "mifare_nested_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_exit handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_exit(void* context);
+#include "mifare_nested_scene_config.h"
+#undef ADD_SCENE

applications/external/mifare_nested/scenes/mifare_nested_scene_about.c

@@ -0,0 +1,77 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_about_widget_callback(GuiButtonType result, InputType type, void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_about_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+
+    FuriString* temp_str;
+    temp_str = furi_string_alloc();
+    furi_string_printf(temp_str, "\e#%s\n", "Information");
+
+    furi_string_cat_printf(temp_str, "Version: %s\n", NESTED_VERSION_APP);
+    furi_string_cat_printf(temp_str, "Developed by:\n%s\n\n", NESTED_AUTHOR);
+    furi_string_cat_printf(temp_str, "Github: %s\n\n", NESTED_GITHUB_LINK);
+
+    furi_string_cat_printf(temp_str, "\e#%s\n", "Description");
+    furi_string_cat_printf(
+        temp_str,
+        "Ported Nested attacks\nfrom Proxmark3 (Iceman fork)\nCurrently supported attacks:\n - nested attack\n - static nested attack\n - hard nested attack\n\n");
+    furi_string_cat_printf(
+        temp_str,
+        "You will need desktop app to recover keys from collected nonces: %s\n\n",
+        NESTED_RECOVER_KEYS_GITHUB_LINK);
+    furi_string_cat_printf(temp_str, "\e#%s\n", "Quick guide");
+    furi_string_cat_printf(temp_str, "1. Install key recovery script on PC:\n");
+    furi_string_cat_printf(temp_str, "pip install FlipperNested\n");
+    furi_string_cat_printf(temp_str, "2. Connect Flipper Zero to PC\n");
+    furi_string_cat_printf(temp_str, "3. Run key recovery:\n");
+    furi_string_cat_printf(temp_str, "FlipperNested");
+
+    widget_add_text_box_element(
+        mifare_nested->widget,
+        0,
+        0,
+        128,
+        14,
+        AlignCenter,
+        AlignBottom,
+        "\e#\e!                                                      \e!\n",
+        false);
+    widget_add_text_box_element(
+        mifare_nested->widget,
+        0,
+        2,
+        128,
+        14,
+        AlignCenter,
+        AlignBottom,
+        "\e#\e! Flipper (Mifare) Nested \e!\n",
+        false);
+    widget_add_text_scroll_element(
+        mifare_nested->widget, 0, 16, 128, 50, furi_string_get_cstr(temp_str));
+    furi_string_free(temp_str);
+
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_about_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+    UNUSED(mifare_nested);
+    UNUSED(event);
+
+    return consumed;
+}
+
+void mifare_nested_scene_about_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    // Clear views
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_added_keys.c

@@ -0,0 +1,76 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_added_keys_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_added_keys_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    KeyInfo_t* key_info = mifare_nested->keys;
+    Widget* widget = mifare_nested->widget;
+    char draw_str[32] = {};
+    char append[5] = {'k', 'e', 'y', ' ', '\0'};
+    if(key_info->added_keys != 1) {
+        append[3] = 's';
+    }
+
+    widget_add_string_element(
+        widget, 0, 0, AlignLeft, AlignTop, FontPrimary, "Results of key recovery");
+
+    if(key_info->added_keys != 0) {
+        snprintf(draw_str, sizeof(draw_str), "Added: %lu %s", key_info->added_keys, append);
+        notification_message(mifare_nested->notifications, &sequence_success);
+        widget_add_icon_element(widget, 52, 17, &I_DolphinSuccess);
+    } else {
+        snprintf(draw_str, sizeof(draw_str), "No new keys were added");
+        widget_add_string_element(
+            widget, 0, 22, AlignLeft, AlignTop, FontSecondary, "Try running \"Nested attack\"");
+        widget_add_string_element(widget, 0, 32, AlignLeft, AlignTop, FontSecondary, "again");
+        notification_message(mifare_nested->notifications, &sequence_error);
+    }
+
+    widget_add_string_element(widget, 0, 12, AlignLeft, AlignTop, FontSecondary, draw_str);
+    widget_add_button_element(
+        widget,
+        GuiButtonTypeLeft,
+        "Back",
+        mifare_nested_scene_added_keys_widget_callback,
+        mifare_nested);
+
+    free(key_info);
+
+    KeyInfo_t* new_key_info = malloc(sizeof(KeyInfo_t));
+    mifare_nested->keys = new_key_info;
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_added_keys_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter || event.event == GuiButtonTypeLeft) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_added_keys_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_check.c

@@ -0,0 +1,102 @@
+#include "../mifare_nested_i.h"
+
+enum {
+    MifareNestedSceneCheckStateTagSearch,
+    MifareNestedSceneCheckStateTagFound,
+};
+
+bool mifare_nested_check_worker_callback(MifareNestedWorkerEvent event, void* context) {
+    furi_assert(context);
+
+    MifareNested* mifare_nested = context;
+    view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, event);
+
+    return true;
+}
+
+static void mifare_nested_scene_check_setup_view(MifareNested* mifare_nested) {
+    Popup* popup = mifare_nested->popup;
+    popup_reset(popup);
+    uint32_t state =
+        scene_manager_get_scene_state(mifare_nested->scene_manager, MifareNestedSceneCheck);
+
+    if(state == MifareNestedSceneCheckStateTagSearch) {
+        popup_set_icon(mifare_nested->popup, 0, 8, &I_ApplyTag);
+        popup_set_text(
+            mifare_nested->popup, "Apply tag to\nthe back", 128, 32, AlignRight, AlignCenter);
+    } else {
+        popup_set_icon(popup, 12, 23, &I_Loading);
+        popup_set_header(popup, "Checking\nDon't move...", 52, 32, AlignLeft, AlignCenter);
+    }
+
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewPopup);
+}
+
+void mifare_nested_scene_check_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+
+    scene_manager_set_scene_state(
+        mifare_nested->scene_manager,
+        MifareNestedSceneCheck,
+        MifareNestedSceneCheckStateTagSearch);
+    mifare_nested_scene_check_setup_view(mifare_nested);
+
+    // Setup and start worker
+    mifare_nested_worker_start(
+        mifare_nested->worker,
+        MifareNestedWorkerStateCheck,
+        &mifare_nested->nfc_dev->dev_data,
+        mifare_nested_check_worker_callback,
+        mifare_nested);
+    mifare_nested_blink_start(mifare_nested);
+}
+
+bool mifare_nested_scene_check_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == MifareNestedWorkerEventNoncesCollected) {
+            scene_manager_next_scene(
+                mifare_nested->scene_manager, MifareNestedSceneNoncesCollected);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventAttackFailed) {
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneFailed);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventCollecting) {
+            if(mifare_nested->run == NestedRunAttack) {
+                if(mifare_nested->settings->only_hardnested) {
+                    FURI_LOG_I("MifareNested", "Using Hard Nested because user settings");
+                    mifare_nested->collecting_type = MifareNestedWorkerStateCollectingHard;
+                }
+                scene_manager_next_scene(
+                    mifare_nested->scene_manager, MifareNestedSceneCollecting);
+            } else {
+                scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneCheckKeys);
+            }
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventNoTagDetected) {
+            scene_manager_set_scene_state(
+                mifare_nested->scene_manager,
+                MifareNestedSceneCheck,
+                MifareNestedSceneCheckStateTagSearch);
+            mifare_nested_scene_check_setup_view(mifare_nested);
+            consumed = true;
+        }
+    }
+    return consumed;
+}
+
+void mifare_nested_scene_check_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    mifare_nested_worker_stop(mifare_nested->worker);
+    scene_manager_set_scene_state(
+        mifare_nested->scene_manager,
+        MifareNestedSceneCheck,
+        MifareNestedSceneCheckStateTagSearch);
+    // Clear view
+    popup_reset(mifare_nested->popup);
+
+    mifare_nested_blink_stop(mifare_nested);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_check_keys.c

@@ -0,0 +1,124 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_check_keys_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+bool mifare_nested_check_keys_worker_callback(MifareNestedWorkerEvent event, void* context) {
+    MifareNested* mifare_nested = context;
+    CheckKeysState* plugin_state = mifare_nested->keys_state;
+
+    if(event == MifareNestedWorkerEventKeyChecked) {
+        mifare_nested_blink_nonce_collection_start(mifare_nested);
+
+        KeyInfo_t* key_info = mifare_nested->keys;
+
+        with_view_model(
+            plugin_state->view,
+            CheckKeysViewModel * model,
+            {
+                model->lost_tag = false;
+                model->keys_checked = key_info->checked_keys;
+                model->keys_found = key_info->found_keys;
+                model->keys_total = key_info->sector_keys;
+                model->keys_count = key_info->total_keys;
+            },
+            true);
+    } else if(event == MifareNestedWorkerEventNoTagDetected) {
+        mifare_nested_blink_start(mifare_nested);
+
+        with_view_model(
+            plugin_state->view, CheckKeysViewModel * model, { model->lost_tag = true; }, true);
+    } else if(event == MifareNestedWorkerEventProcessingKeys) {
+        with_view_model(
+            plugin_state->view,
+            CheckKeysViewModel * model,
+            { model->processing_keys = true; },
+            true);
+    }
+
+    view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, event);
+
+    return true;
+}
+
+void mifare_nested_scene_check_keys_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    CheckKeysState* plugin_state = mifare_nested->keys_state;
+
+    mifare_nested_worker_start(
+        mifare_nested->worker,
+        MifareNestedWorkerStateValidating,
+        &mifare_nested->nfc_dev->dev_data,
+        mifare_nested_check_keys_worker_callback,
+        mifare_nested);
+
+    mifare_nested_blink_start(mifare_nested);
+
+    with_view_model(
+        plugin_state->view,
+        CheckKeysViewModel * model,
+        {
+            model->lost_tag = false;
+            model->processing_keys = false;
+            model->keys_count = 0;
+            model->keys_checked = 0;
+            model->keys_found = 0;
+        },
+        false);
+
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewCheckKeys);
+}
+
+bool mifare_nested_scene_check_keys_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+
+    bool consumed = false;
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventNoncesCollected) {
+            scene_manager_next_scene(
+                mifare_nested->scene_manager, MifareNestedSceneNoncesCollected);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventNeedKey) {
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneNoKeys);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventKeysFound) {
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneAddedKeys);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventNeedKeyRecovery) {
+            scene_manager_next_scene(
+                mifare_nested->scene_manager, MifareNestedSceneNeedKeyRecovery);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventNeedCollection) {
+            scene_manager_next_scene(
+                mifare_nested->scene_manager, MifareNestedSceneNeedCollection);
+            consumed = true;
+        } else if(
+            event.event == MifareNestedWorkerEventKeyChecked ||
+            event.event == MifareNestedWorkerEventNoTagDetected ||
+            event.event == MifareNestedWorkerEventProcessingKeys) {
+            consumed = true;
+        }
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_check_keys_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+    mifare_nested_worker_stop(mifare_nested->worker);
+
+    // Clear view
+    mifare_nested_blink_stop(mifare_nested);
+    popup_reset(mifare_nested->popup);
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_collecting.c

@@ -0,0 +1,154 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_collecting_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+bool mifare_nested_collecting_worker_callback(MifareNestedWorkerEvent event, void* context) {
+    MifareNested* mifare_nested = context;
+    NestedState* plugin_state = mifare_nested->nested_state;
+
+    if(event == MifareNestedWorkerEventNewNonce) {
+        mifare_nested_blink_nonce_collection_start(mifare_nested);
+
+        uint8_t collected = 0;
+        NonceList_t* nonces = mifare_nested->nonces;
+        for(uint8_t tries = 0; tries < nonces->tries; tries++) {
+            for(uint8_t sector = 0; sector < nonces->sector_count; sector++) {
+                for(uint8_t keyType = 0; keyType < 2; keyType++) {
+                    Nonces* info = nonces->nonces[sector][keyType][tries];
+                    if(info->collected) {
+                        collected++;
+                    }
+                }
+            }
+        }
+
+        with_view_model(
+            plugin_state->view,
+            NestedAttackViewModel * model,
+            {
+                model->calibrating = false;
+                model->lost_tag = false;
+                model->nonces_collected = collected;
+                model->keys_count = nonces->sector_count * nonces->tries * 2;
+            },
+            true);
+    } else if(event == MifareNestedWorkerEventNoTagDetected) {
+        mifare_nested_blink_start(mifare_nested);
+
+        with_view_model(
+            plugin_state->view, NestedAttackViewModel * model, { model->lost_tag = true; }, true);
+    } else if(event == MifareNestedWorkerEventCalibrating) {
+        mifare_nested_blink_calibration_start(mifare_nested);
+
+        with_view_model(
+            plugin_state->view,
+            NestedAttackViewModel * model,
+            {
+                model->calibrating = true;
+                model->lost_tag = false;
+                model->need_prediction = false;
+                model->hardnested = false;
+            },
+            true);
+    } else if(event == MifareNestedWorkerEventNeedPrediction) {
+        with_view_model(
+            plugin_state->view,
+            NestedAttackViewModel * model,
+            { model->need_prediction = true; },
+            true);
+    } else if(event == MifareNestedWorkerEventHardnestedStatesFound) {
+        NonceList_t* nonces = mifare_nested->nonces;
+        with_view_model(
+            plugin_state->view,
+            NestedAttackViewModel * model,
+            {
+                model->calibrating = false;
+                model->lost_tag = false;
+                model->hardnested = true;
+                model->hardnested_states = nonces->hardnested_states;
+            },
+            true);
+    }
+
+    view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, event);
+
+    return true;
+}
+
+void mifare_nested_scene_collecting_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    NestedState* nested = mifare_nested->nested_state;
+
+    mifare_nested_worker_start(
+        mifare_nested->worker,
+        mifare_nested->collecting_type,
+        &mifare_nested->nfc_dev->dev_data,
+        mifare_nested_collecting_worker_callback,
+        mifare_nested);
+
+    mifare_nested_blink_start(mifare_nested);
+
+    with_view_model(
+        nested->view,
+        NestedAttackViewModel * model,
+        {
+            model->lost_tag = false;
+            model->nonces_collected = 0;
+        },
+        false);
+
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewCollecting);
+}
+
+bool mifare_nested_scene_collecting_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+
+    bool consumed = false;
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventNoncesCollected) {
+            scene_manager_next_scene(
+                mifare_nested->scene_manager, MifareNestedSceneNoncesCollected);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventAttackFailed) {
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneFailed);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventNeedKey) {
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneNoKeys);
+            consumed = true;
+        } else if(event.event == MifareNestedWorkerEventStaticEncryptedNonce) {
+            scene_manager_next_scene(
+                mifare_nested->scene_manager, MifareNestedSceneStaticEncryptedNonce);
+            consumed = true;
+        } else if(
+            event.event == MifareNestedWorkerEventNewNonce ||
+            event.event == MifareNestedWorkerEventNoTagDetected ||
+            event.event == MifareNestedWorkerEventCalibrating ||
+            event.event == MifareNestedWorkerEventNeedPrediction ||
+            event.event == MifareNestedWorkerEventHardnestedStatesFound) {
+            consumed = true;
+        }
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_collecting_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+    mifare_nested_worker_stop(mifare_nested->worker);
+
+    // Clear view
+    mifare_nested_blink_stop(mifare_nested);
+    popup_reset(mifare_nested->popup);
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_config.h

@@ -0,0 +1,13 @@
+ADD_SCENE(mifare_nested, start, Start)
+ADD_SCENE(mifare_nested, check, Check)
+ADD_SCENE(mifare_nested, nonces_collected, NoncesCollected)
+ADD_SCENE(mifare_nested, collecting, Collecting)
+ADD_SCENE(mifare_nested, no_keys, NoKeys)
+ADD_SCENE(mifare_nested, check_keys, CheckKeys)
+ADD_SCENE(mifare_nested, added_keys, AddedKeys)
+ADD_SCENE(mifare_nested, failed, Failed)
+ADD_SCENE(mifare_nested, about, About)
+ADD_SCENE(mifare_nested, static_encrypted_nonce, StaticEncryptedNonce)
+ADD_SCENE(mifare_nested, need_key_recovery, NeedKeyRecovery)
+ADD_SCENE(mifare_nested, need_collection, NeedCollection)
+ADD_SCENE(mifare_nested, settings, Settings)

applications/external/mifare_nested/scenes/mifare_nested_scene_failed.c

@@ -0,0 +1,59 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_failed_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_failed_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    Widget* widget = mifare_nested->widget;
+
+    notification_message(mifare_nested->notifications, &sequence_error);
+
+    widget_add_icon_element(widget, 73, 13, &I_DolphinCry);
+    widget_add_string_element(
+        widget, 0, 0, AlignLeft, AlignTop, FontPrimary, "Failed to preform attack");
+    widget_add_string_element(widget, 0, 12, AlignLeft, AlignTop, FontSecondary, "Try running");
+    widget_add_string_element(
+        widget, 0, 22, AlignLeft, AlignTop, FontSecondary, "\"Nested attack\"");
+    widget_add_string_element(widget, 0, 32, AlignLeft, AlignTop, FontSecondary, "again or check");
+    widget_add_string_element(widget, 0, 42, AlignLeft, AlignTop, FontSecondary, "logs");
+    widget_add_button_element(
+        widget,
+        GuiButtonTypeLeft,
+        "Back",
+        mifare_nested_scene_failed_widget_callback,
+        mifare_nested);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_failed_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter || event.event == GuiButtonTypeLeft) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_failed_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_need_collection.c

@@ -0,0 +1,56 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_need_collection_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_need_collection_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    Widget* widget = mifare_nested->widget;
+
+    notification_message(mifare_nested->notifications, &sequence_error);
+
+    widget_add_icon_element(widget, 73, 13, &I_DolphinCry);
+    widget_add_string_element(
+        widget, 0, 0, AlignLeft, AlignTop, FontPrimary, "Missing collected nonces");
+    widget_add_string_element(
+        widget, 0, 12, AlignLeft, AlignTop, FontSecondary, "Run \"Nested attack\"");
+    widget_add_button_element(
+        widget,
+        GuiButtonTypeLeft,
+        "Back",
+        mifare_nested_scene_need_collection_widget_callback,
+        mifare_nested);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_need_collection_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter || event.event == GuiButtonTypeLeft) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_need_collection_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_need_key_recovery.c

@@ -0,0 +1,59 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_need_key_recovery_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_need_key_recovery_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    Widget* widget = mifare_nested->widget;
+
+    notification_message(mifare_nested->notifications, &sequence_error);
+
+    widget_add_icon_element(widget, 74, 13, &I_DolphinCry);
+    widget_add_string_element(
+        widget, 0, 0, AlignLeft, AlignTop, FontPrimary, "Missing found keys");
+    widget_add_string_element(
+        widget, 0, 12, AlignLeft, AlignTop, FontSecondary, "First you need to");
+    widget_add_string_element(widget, 0, 22, AlignLeft, AlignTop, FontSecondary, "recover keys");
+    widget_add_string_element(widget, 0, 32, AlignLeft, AlignTop, FontSecondary, "Read \"About\"");
+    widget_add_string_element(widget, 0, 42, AlignLeft, AlignTop, FontSecondary, "for more info");
+    widget_add_button_element(
+        widget,
+        GuiButtonTypeLeft,
+        "Back",
+        mifare_nested_scene_need_key_recovery_widget_callback,
+        mifare_nested);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_need_key_recovery_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter || event.event == GuiButtonTypeLeft) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_need_key_recovery_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_no_keys.c

@@ -0,0 +1,61 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_no_keys_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_no_keys_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    Widget* widget = mifare_nested->widget;
+
+    notification_message(mifare_nested->notifications, &sequence_success);
+
+    widget_add_icon_element(widget, 73, 13, &I_DolphinCry);
+    widget_add_string_element(widget, 0, 0, AlignLeft, AlignTop, FontPrimary, "No keys found");
+    widget_add_string_element(
+        widget, 0, 12, AlignLeft, AlignTop, FontSecondary, "Scan tag and find at");
+    widget_add_string_element(
+        widget, 0, 22, AlignLeft, AlignTop, FontSecondary, "least one key to");
+    widget_add_string_element(
+        widget, 0, 32, AlignLeft, AlignTop, FontSecondary, "start (save dump");
+    widget_add_string_element(
+        widget, 0, 42, AlignLeft, AlignTop, FontSecondary, "after scanning!)");
+    widget_add_button_element(
+        widget,
+        GuiButtonTypeLeft,
+        "Back",
+        mifare_nested_scene_no_keys_widget_callback,
+        mifare_nested);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_no_keys_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter || event.event == GuiButtonTypeLeft) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_no_keys_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_nonces_collected.c

@@ -0,0 +1,58 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_nonces_collected_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_nonces_collected_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    Widget* widget = mifare_nested->widget;
+
+    notification_message(mifare_nested->notifications, &sequence_success);
+
+    widget_add_icon_element(widget, 52, 17, &I_DolphinSuccess);
+    widget_add_string_element(widget, 0, 0, AlignLeft, AlignTop, FontPrimary, "Nonces collected");
+    widget_add_string_element(
+        widget, 0, 12, AlignLeft, AlignTop, FontSecondary, "Now you can run");
+    widget_add_string_element(widget, 0, 22, AlignLeft, AlignTop, FontSecondary, "script on your");
+    widget_add_string_element(widget, 0, 32, AlignLeft, AlignTop, FontSecondary, "PC to recover");
+    widget_add_string_element(widget, 0, 42, AlignLeft, AlignTop, FontSecondary, "keys");
+    widget_add_button_element(
+        widget,
+        GuiButtonTypeLeft,
+        "Back",
+        mifare_nested_scene_nonces_collected_widget_callback,
+        mifare_nested);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_nonces_collected_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter || event.event == GuiButtonTypeLeft) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_nonces_collected_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    widget_reset(mifare_nested->widget);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_settings.c

@@ -0,0 +1,65 @@
+#include "../mifare_nested_i.h"
+#include <lib/toolbox/value_index.h>
+
+enum MifareNestedSettingsIndex { MifareNestedIndexBlock, MifareNestedIndexHardNested };
+
+#define HARD_NESTED_COUNT 2
+const char* const hard_nested_text[HARD_NESTED_COUNT] = {
+    "No",
+    "Yes",
+};
+
+const bool hard_nested_value[HARD_NESTED_COUNT] = {
+    false,
+    true,
+};
+
+static void mifare_nested_scene_settings_set_hard_nested(VariableItem* item) {
+    MifareNested* mifare_nested = variable_item_get_context(item);
+    uint8_t index = variable_item_get_current_value_index(item);
+
+    variable_item_set_current_value_text(item, hard_nested_text[index]);
+    mifare_nested->settings->only_hardnested = hard_nested_value[index];
+}
+
+void mifare_nested_scene_settings_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    VariableItem* item;
+    uint8_t value_index;
+
+    item = variable_item_list_add(
+        mifare_nested->variable_item_list,
+        "Hard Nested only:",
+        HARD_NESTED_COUNT,
+        mifare_nested_scene_settings_set_hard_nested,
+        mifare_nested);
+
+    value_index = value_index_bool(
+        mifare_nested->settings->only_hardnested, hard_nested_value, HARD_NESTED_COUNT);
+
+    variable_item_set_current_value_index(item, value_index);
+    variable_item_set_current_value_text(item, hard_nested_text[value_index]);
+
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewVariableList);
+}
+
+bool mifare_nested_scene_settings_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == MifareNestedCustomEventSceneSettingLock) {
+            scene_manager_previous_scene(mifare_nested->scene_manager);
+            consumed = true;
+        }
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_settings_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+    variable_item_list_set_selected_item(mifare_nested->variable_item_list, 0);
+    variable_item_list_reset(mifare_nested->variable_item_list);
+    scene_manager_set_scene_state(mifare_nested->scene_manager, MifareNestedSceneStart, 0);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_start.c

@@ -0,0 +1,84 @@
+#include "../mifare_nested_i.h"
+enum SubmenuIndex {
+    SubmenuIndexCollect,
+    SubmenuIndexCheck,
+    SubmenuIndexSettings,
+    SubmenuIndexAbout
+};
+
+void mifare_nested_scene_start_submenu_callback(void* context, uint32_t index) {
+    MifareNested* mifare_nested = context;
+    view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, index);
+}
+
+void mifare_nested_scene_start_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+
+    Submenu* submenu = mifare_nested->submenu;
+    submenu_add_item(
+        submenu,
+        "Nested attack",
+        SubmenuIndexCollect,
+        mifare_nested_scene_start_submenu_callback,
+        mifare_nested);
+
+    submenu_add_item(
+        submenu,
+        "Check found keys",
+        SubmenuIndexCheck,
+        mifare_nested_scene_start_submenu_callback,
+        mifare_nested);
+
+    submenu_add_item(
+        submenu,
+        "Settings",
+        SubmenuIndexSettings,
+        mifare_nested_scene_start_submenu_callback,
+        mifare_nested);
+
+    submenu_add_item(
+        submenu,
+        "About",
+        SubmenuIndexAbout,
+        mifare_nested_scene_start_submenu_callback,
+        mifare_nested);
+
+    submenu_set_selected_item(
+        submenu,
+        scene_manager_get_scene_state(mifare_nested->scene_manager, MifareNestedSceneStart));
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewMenu);
+}
+
+bool mifare_nested_scene_start_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == SubmenuIndexCollect) {
+            mifare_nested->run = NestedRunAttack;
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneCheck);
+            consumed = true;
+        } else if(event.event == SubmenuIndexCheck) {
+            mifare_nested->run = NestedRunCheckKeys;
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneCheck);
+            consumed = true;
+        } else if(event.event == SubmenuIndexSettings) {
+            mifare_nested->keys->found_keys = 123;
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneSettings);
+            consumed = true;
+        } else if(event.event == SubmenuIndexAbout) {
+            scene_manager_next_scene(mifare_nested->scene_manager, MifareNestedSceneAbout);
+            consumed = true;
+        }
+
+        scene_manager_set_scene_state(
+            mifare_nested->scene_manager, MifareNestedSceneStart, event.event);
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_start_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+    submenu_reset(mifare_nested->submenu);
+}

applications/external/mifare_nested/scenes/mifare_nested_scene_static_encrypted_nonce.c

@@ -0,0 +1,58 @@
+#include "../mifare_nested_i.h"
+
+void mifare_nested_scene_static_encrypted_nonce_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    MifareNested* mifare_nested = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(mifare_nested->view_dispatcher, result);
+    }
+}
+
+void mifare_nested_scene_static_encrypted_nonce_on_enter(void* context) {
+    MifareNested* mifare_nested = context;
+    Widget* widget = mifare_nested->widget;
+
+    notification_message(mifare_nested->notifications, &sequence_error);
+
+    widget_add_icon_element(widget, 73, 12, &I_DolphinCry);
+    widget_add_string_element(
+        widget, 0, 0, AlignLeft, AlignTop, FontPrimary, "Static encrypted nonce");
+    widget_add_string_element(widget, 0, 12, AlignLeft, AlignTop, FontSecondary, "This tag isn't");
+    widget_add_string_element(widget, 0, 22, AlignLeft, AlignTop, FontSecondary, "vulnerable to");
+    widget_add_string_element(widget, 0, 32, AlignLeft, AlignTop, FontSecondary, "Nested attack");
+
+    widget_add_button_element(
+        widget,
+        GuiButtonTypeLeft,
+        "Back",
+        mifare_nested_scene_static_encrypted_nonce_widget_callback,
+        mifare_nested);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(mifare_nested->view_dispatcher, MifareNestedViewWidget);
+}
+
+bool mifare_nested_scene_static_encrypted_nonce_on_event(void* context, SceneManagerEvent event) {
+    MifareNested* mifare_nested = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeCenter || event.event == GuiButtonTypeLeft) {
+            scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+            consumed = true;
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        scene_manager_search_and_switch_to_previous_scene(mifare_nested->scene_manager, 0);
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void mifare_nested_scene_static_encrypted_nonce_on_exit(void* context) {
+    MifareNested* mifare_nested = context;
+
+    widget_reset(mifare_nested->widget);
+}

applications/external/nfc_magic/application.fam

@@ -11,7 +11,7 @@ App(
     stack_size=4 * 1024,
     order=30,
     fap_icon="../../../assets/icons/Archive/Nfc_10px.png",
-    fap_category="Tools",
+    fap_category="NFC",
     fap_private_libs=[
         Lib(
             name="magic",

applications/external/picopass/application.fam

@@ -11,7 +11,7 @@ App(
     stack_size=4 * 1024,
     order=30,
     fap_icon="125_10px.png",
-    fap_category="Tools",
+    fap_category="NFC",
     fap_libs=["mbedtls"],
     fap_private_libs=[
         Lib(

applications/main/archive/scenes/archive_scene_rename.c

@@ -22,17 +22,21 @@ void archive_scene_rename_on_enter(void* context) {
     TextInput* text_input = archive->text_input;
     ArchiveFile_t* current = archive_get_current_file(archive->browser);
 
-    FuriString* path_name;
+    FuriString* path_name = furi_string_alloc();
-    path_name = furi_string_alloc();
+    FuriString* path_folder = furi_string_alloc();
 
     if(current->type == ArchiveFileTypeFolder) {
+        // Set file ext to empty since we need to see folder name here
+        strcpy(archive->file_extension, "");
+        // Extract folder name and copy into text_store
         path_extract_basename(furi_string_get_cstr(current->path), path_name);
         strlcpy(archive->text_store, furi_string_get_cstr(path_name), MAX_NAME_LEN);
         text_input_set_header_text(text_input, "Rename directory:");
     } else /*if(current->type != ArchiveFileTypeUnknown) */ {
+        // Extract file name and copy into text_store
         path_extract_filename(current->path, path_name, true);
         strlcpy(archive->text_store, furi_string_get_cstr(path_name), MAX_NAME_LEN);
-
+        // Extract file extension for validator and rename func
         path_extract_extension(current->path, archive->file_extension, MAX_EXT_LEN);
         text_input_set_header_text(text_input, "Rename file:");
     } /*else {
@@ -41,6 +45,9 @@ void archive_scene_rename_on_enter(void* context) {
         text_input_set_header_text(text_input, "Rename unknown file:");
     }*/
 
+    // Get current folder (for file) or previous folder (for folder) for validator
+    path_extract_dirname(furi_string_get_cstr(current->path), path_folder);
+
     text_input_set_result_callback(
         text_input,
         archive_scene_rename_text_input_callback,
@@ -49,7 +56,13 @@ void archive_scene_rename_on_enter(void* context) {
         MAX_TEXT_INPUT_LEN,
         false);
 
+    // Init validator to show message to user that name already exist
+    ValidatorIsFile* validator_is_file = validator_is_file_alloc_init(
+        furi_string_get_cstr(path_folder), archive->file_extension, archive->text_store);
+    text_input_set_validator(text_input, validator_is_file_callback, validator_is_file);
+
     furi_string_free(path_name);
+    furi_string_free(path_folder);
 
     view_dispatcher_switch_to_view(archive->view_dispatcher, ArchiveViewTextInput);
 }

applications/services/desktop/scenes/desktop_scene_main.c

@@ -67,7 +67,9 @@ static void desktop_scene_main_start_favorite(Desktop* desktop, FavoriteApp* app
     } else if(strlen(application->name_or_path) > 0) {
         status = loader_start(desktop->loader, application->name_or_path, NULL);
     } else {
-        status = loader_start(desktop->loader, FAP_LOADER_APP_NAME, NULL);
+        // No favourite app is set! So we skipping this part
+        return;
+        //status = loader_start(desktop->loader, FAP_LOADER_APP_NAME, NULL);
     }
 
     if(status != LoaderStatusOk) {

lib/lfrfid/protocols/lfrfid_protocols.c

@@ -16,6 +16,7 @@
 #include "protocol_pac_stanley.h"
 #include "protocol_keri.h"
 #include "protocol_gallagher.h"
+#include "protocol_nexwatch.h"
 
 const ProtocolBase* lfrfid_protocols[] = {
     [LFRFIDProtocolEM4100] = &protocol_em4100,
@@ -35,4 +36,5 @@ const ProtocolBase* lfrfid_protocols[] = {
     [LFRFIDProtocolPACStanley] = &protocol_pac_stanley,
     [LFRFIDProtocolKeri] = &protocol_keri,
     [LFRFIDProtocolGallagher] = &protocol_gallagher,
+    [LFRFIDProtocolNexwatch] = &protocol_nexwatch,
 };

lib/lfrfid/protocols/lfrfid_protocols.h

@@ -25,6 +25,7 @@ typedef enum {
     LFRFIDProtocolPACStanley,
     LFRFIDProtocolKeri,
     LFRFIDProtocolGallagher,
+    LFRFIDProtocolNexwatch,
     LFRFIDProtocolMax,
 } LFRFIDProtocol;
 

lib/lfrfid/protocols/protocol_nexwatch.c

@@ -0,0 +1,323 @@
+#include <furi.h>
+#include <toolbox/protocols/protocol.h>
+#include <lfrfid/tools/bit_lib.h>
+#include "lfrfid_protocols.h"
+
+#define NEXWATCH_PREAMBLE_BIT_SIZE (8)
+#define NEXWATCH_PREAMBLE_DATA_SIZE (1)
+
+#define NEXWATCH_ENCODED_BIT_SIZE (96)
+#define NEXWATCH_ENCODED_DATA_SIZE ((NEXWATCH_ENCODED_BIT_SIZE) / 8)
+
+#define NEXWATCH_DECODED_BIT_SIZE (NEXWATCH_DECODED_DATA_SIZE * 8)
+#define NEXWATCH_DECODED_DATA_SIZE (8)
+
+#define NEXWATCH_US_PER_BIT (255)
+#define NEXWATCH_ENCODER_PULSES_PER_BIT (16)
+
+typedef struct {
+    uint8_t magic;
+    char desc[13];
+    uint8_t chk;
+} ProtocolNexwatchMagic;
+
+ProtocolNexwatchMagic magic_items[] = {
+    {0xBE, "Quadrakey", 0},
+    {0x88, "Nexkey", 0},
+    {0x86, "Honeywell", 0}};
+
+typedef struct {
+    uint8_t data_index;
+    uint8_t bit_clock_index;
+    bool last_bit;
+    bool current_polarity;
+    bool pulse_phase;
+} ProtocolNexwatchEncoder;
+
+typedef struct {
+    uint8_t encoded_data[NEXWATCH_ENCODED_DATA_SIZE];
+    uint8_t negative_encoded_data[NEXWATCH_ENCODED_DATA_SIZE];
+    uint8_t corrupted_encoded_data[NEXWATCH_ENCODED_DATA_SIZE];
+    uint8_t corrupted_negative_encoded_data[NEXWATCH_ENCODED_DATA_SIZE];
+
+    uint8_t data[NEXWATCH_DECODED_DATA_SIZE];
+    ProtocolNexwatchEncoder encoder;
+} ProtocolNexwatch;
+
+ProtocolNexwatch* protocol_nexwatch_alloc(void) {
+    ProtocolNexwatch* protocol = malloc(sizeof(ProtocolNexwatch));
+    return protocol;
+};
+
+void protocol_nexwatch_free(ProtocolNexwatch* protocol) {
+    free(protocol);
+};
+
+uint8_t* protocol_nexwatch_get_data(ProtocolNexwatch* protocol) {
+    return protocol->data;
+};
+
+void protocol_nexwatch_decoder_start(ProtocolNexwatch* protocol) {
+    memset(protocol->encoded_data, 0, NEXWATCH_ENCODED_DATA_SIZE);
+    memset(protocol->negative_encoded_data, 0, NEXWATCH_ENCODED_DATA_SIZE);
+    memset(protocol->corrupted_encoded_data, 0, NEXWATCH_ENCODED_DATA_SIZE);
+    memset(protocol->corrupted_negative_encoded_data, 0, NEXWATCH_ENCODED_DATA_SIZE);
+};
+
+static bool protocol_nexwatch_check_preamble(uint8_t* data, size_t bit_index) {
+    // 01010110
+    if(bit_lib_get_bits(data, bit_index, 8) != 0b01010110) return false;
+    return true;
+}
+
+static uint8_t protocol_nexwatch_parity_swap(uint8_t parity) {
+    uint8_t a = (((parity >> 3) & 1));
+    a |= (((parity >> 1) & 1) << 1);
+    a |= (((parity >> 2) & 1) << 2);
+    a |= ((parity & 1) << 3);
+    return a;
+}
+
+static uint8_t protocol_nexwatch_parity(const uint8_t hexid[5]) {
+    uint8_t p = 0;
+    for(uint8_t i = 0; i < 5; i++) {
+        p ^= ((hexid[i]) & 0xF0) >> 4;
+        p ^= ((hexid[i]) & 0x0F);
+    }
+    return protocol_nexwatch_parity_swap(p);
+}
+
+static uint8_t protocol_nexwatch_checksum(uint8_t magic, uint32_t id, uint8_t parity) {
+    uint8_t a = ((id >> 24) & 0xFF);
+    a -= ((id >> 16) & 0xFF);
+    a -= ((id >> 8) & 0xFF);
+    a -= (id & 0xFF);
+    a -= magic;
+    a -= (bit_lib_reverse_8_fast(parity) >> 4);
+    return bit_lib_reverse_8_fast(a);
+}
+
+static bool protocol_nexwatch_can_be_decoded(uint8_t* data) {
+    if(!protocol_nexwatch_check_preamble(data, 0)) return false;
+
+    // Check for reserved word (32-bit)
+    if(bit_lib_get_bits_32(data, 8, 32) != 0) {
+        return false;
+    }
+
+    uint8_t parity = bit_lib_get_bits(data, 76, 4);
+
+    // parity check
+    // from 32b hex id, 4b mode
+    uint8_t hex[5] = {0};
+    for(uint8_t i = 0; i < 5; i++) {
+        hex[i] = bit_lib_get_bits(data, 40 + (i * 8), 8);
+    }
+    //mode is only 4 bits.
+    hex[4] &= 0xf0;
+    uint8_t calc_parity = protocol_nexwatch_parity(hex);
+
+    if(calc_parity != parity) {
+        return false;
+    }
+
+    return true;
+}
+
+static bool protocol_nexwatch_decoder_feed_internal(bool polarity, uint32_t time, uint8_t* data) {
+    time += (NEXWATCH_US_PER_BIT / 2);
+
+    size_t bit_count = (time / NEXWATCH_US_PER_BIT);
+    bool result = false;
+
+    if(bit_count < NEXWATCH_ENCODED_BIT_SIZE) {
+        for(size_t i = 0; i < bit_count; i++) {
+            bit_lib_push_bit(data, NEXWATCH_ENCODED_DATA_SIZE, polarity);
+            if(protocol_nexwatch_can_be_decoded(data)) {
+                result = true;
+                break;
+            }
+        }
+    }
+
+    return result;
+}
+
+static void protocol_nexwatch_descramble(uint32_t* id, uint32_t* scrambled) {
+    // 255 = Not used/Unknown other values are the bit offset in the ID/FC values
+    const uint8_t hex_2_id[] = {31, 27, 23, 19, 15, 11, 7, 3, 30, 26, 22, 18, 14, 10, 6, 2,
+                                29, 25, 21, 17, 13, 9,  5, 1, 28, 24, 20, 16, 12, 8,  4, 0};
+
+    *id = 0;
+    for(uint8_t idx = 0; idx < 32; idx++) {
+        bool bit_state = (*scrambled >> hex_2_id[idx]) & 1;
+        *id |= (bit_state << (31 - idx));
+    }
+}
+
+static void protocol_nexwatch_decoder_save(uint8_t* data_to, const uint8_t* data_from) {
+    uint32_t id = bit_lib_get_bits_32(data_from, 40, 32);
+    data_to[4] = (uint8_t)id;
+    data_to[3] = (uint8_t)(id >>= 8);
+    data_to[2] = (uint8_t)(id >>= 8);
+    data_to[1] = (uint8_t)(id >>= 8);
+    data_to[0] = (uint8_t)(id >>= 8);
+    uint32_t check = bit_lib_get_bits_32(data_from, 72, 24);
+    data_to[7] = (uint8_t)check;
+    data_to[6] = (uint8_t)(check >>= 8);
+    data_to[5] = (uint8_t)(check >>= 8);
+}
+
+bool protocol_nexwatch_decoder_feed(ProtocolNexwatch* protocol, bool level, uint32_t duration) {
+    bool result = false;
+
+    if(duration > (NEXWATCH_US_PER_BIT / 2)) {
+        if(protocol_nexwatch_decoder_feed_internal(level, duration, protocol->encoded_data)) {
+            protocol_nexwatch_decoder_save(protocol->data, protocol->encoded_data);
+            result = true;
+            return result;
+        }
+
+        if(protocol_nexwatch_decoder_feed_internal(
+               !level, duration, protocol->negative_encoded_data)) {
+            protocol_nexwatch_decoder_save(protocol->data, protocol->negative_encoded_data);
+            result = true;
+            return result;
+        }
+    }
+
+    if(duration > (NEXWATCH_US_PER_BIT / 4)) {
+        // Try to decode wrong phase synced data
+        if(level) {
+            duration += 120;
+        } else {
+            if(duration > 120) {
+                duration -= 120;
+            }
+        }
+
+        if(protocol_nexwatch_decoder_feed_internal(
+               level, duration, protocol->corrupted_encoded_data)) {
+            protocol_nexwatch_decoder_save(protocol->data, protocol->corrupted_encoded_data);
+
+            result = true;
+            return result;
+        }
+
+        if(protocol_nexwatch_decoder_feed_internal(
+               !level, duration, protocol->corrupted_negative_encoded_data)) {
+            protocol_nexwatch_decoder_save(
+                protocol->data, protocol->corrupted_negative_encoded_data);
+
+            result = true;
+            return result;
+        }
+    }
+
+    return result;
+};
+
+bool protocol_nexwatch_encoder_start(ProtocolNexwatch* protocol) {
+    memset(protocol->encoded_data, 0, NEXWATCH_ENCODED_DATA_SIZE);
+    *(uint32_t*)&protocol->encoded_data[0] = 0b00000000000000000000000001010110;
+    bit_lib_copy_bits(protocol->encoded_data, 32, 32, protocol->data, 0);
+    bit_lib_copy_bits(protocol->encoded_data, 64, 32, protocol->data, 32);
+
+    protocol->encoder.last_bit =
+        bit_lib_get_bit(protocol->encoded_data, NEXWATCH_ENCODED_BIT_SIZE - 1);
+    protocol->encoder.data_index = 0;
+    protocol->encoder.current_polarity = true;
+    protocol->encoder.pulse_phase = true;
+    protocol->encoder.bit_clock_index = 0;
+
+    return true;
+};
+
+LevelDuration protocol_nexwatch_encoder_yield(ProtocolNexwatch* protocol) {
+    LevelDuration level_duration;
+    ProtocolNexwatchEncoder* encoder = &protocol->encoder;
+
+    if(encoder->pulse_phase) {
+        level_duration = level_duration_make(encoder->current_polarity, 1);
+        encoder->pulse_phase = false;
+    } else {
+        level_duration = level_duration_make(!encoder->current_polarity, 1);
+        encoder->pulse_phase = true;
+
+        encoder->bit_clock_index++;
+        if(encoder->bit_clock_index >= NEXWATCH_ENCODER_PULSES_PER_BIT) {
+            encoder->bit_clock_index = 0;
+
+            bool current_bit = bit_lib_get_bit(protocol->encoded_data, encoder->data_index);
+
+            if(current_bit != encoder->last_bit) {
+                encoder->current_polarity = !encoder->current_polarity;
+            }
+
+            encoder->last_bit = current_bit;
+
+            bit_lib_increment_index(encoder->data_index, NEXWATCH_ENCODED_BIT_SIZE);
+        }
+    }
+
+    return level_duration;
+};
+
+void protocol_nexwatch_render_data(ProtocolNexwatch* protocol, FuriString* result) {
+    uint32_t id = 0;
+    uint32_t scrambled = bit_lib_get_bits_32(protocol->data, 8, 32);
+    protocol_nexwatch_descramble(&id, &scrambled);
+
+    uint8_t m_idx;
+    uint8_t mode = bit_lib_get_bits(protocol->data, 40, 4);
+    uint8_t parity = bit_lib_get_bits(protocol->data, 44, 4);
+    uint8_t chk = bit_lib_get_bits(protocol->data, 48, 8);
+    for(m_idx = 0; m_idx < 3; m_idx++) {
+        magic_items[m_idx].chk = protocol_nexwatch_checksum(magic_items[m_idx].magic, id, parity);
+        if(magic_items[m_idx].chk == chk) {
+            break;
+        }
+    }
+    furi_string_printf(result, "ID: %lu, M:%u\r\nType: %s\r\n", id, mode, magic_items[m_idx].desc);
+}
+
+bool protocol_nexwatch_write_data(ProtocolNexwatch* protocol, void* data) {
+    LFRFIDWriteRequest* request = (LFRFIDWriteRequest*)data;
+    bool result = false;
+
+    protocol_nexwatch_encoder_start(protocol);
+    if(request->write_type == LFRFIDWriteTypeT5577) {
+        request->t5577.block[0] = LFRFID_T5577_MODULATION_PSK1 | LFRFID_T5577_BITRATE_RF_32 |
+                                  (3 << LFRFID_T5577_MAXBLOCK_SHIFT);
+        request->t5577.block[1] = bit_lib_get_bits_32(protocol->encoded_data, 0, 32);
+        request->t5577.block[2] = bit_lib_get_bits_32(protocol->encoded_data, 32, 32);
+        request->t5577.block[3] = bit_lib_get_bits_32(protocol->encoded_data, 64, 32);
+        request->t5577.blocks_to_write = 4;
+        result = true;
+    }
+    return result;
+};
+
+const ProtocolBase protocol_nexwatch = {
+    .name = "Nexwatch",
+    .manufacturer = "Honeywell",
+    .data_size = NEXWATCH_DECODED_DATA_SIZE,
+    .features = LFRFIDFeaturePSK,
+    .validate_count = 6,
+    .alloc = (ProtocolAlloc)protocol_nexwatch_alloc,
+    .free = (ProtocolFree)protocol_nexwatch_free,
+    .get_data = (ProtocolGetData)protocol_nexwatch_get_data,
+    .decoder =
+        {
+            .start = (ProtocolDecoderStart)protocol_nexwatch_decoder_start,
+            .feed = (ProtocolDecoderFeed)protocol_nexwatch_decoder_feed,
+        },
+    .encoder =
+        {
+            .start = (ProtocolEncoderStart)protocol_nexwatch_encoder_start,
+            .yield = (ProtocolEncoderYield)protocol_nexwatch_encoder_yield,
+        },
+    .render_data = (ProtocolRenderData)protocol_nexwatch_render_data,
+    .render_brief_data = (ProtocolRenderData)protocol_nexwatch_render_data,
+    .write_data = (ProtocolWriteData)protocol_nexwatch_write_data,
+};

lib/lfrfid/protocols/protocol_nexwatch.h

@@ -0,0 +1,4 @@
+#pragma once
+#include <toolbox/protocols/protocol.h>
+
+extern const ProtocolBase protocol_nexwatch;

lib/subghz/protocols/secplus_v2.c

@@ -345,7 +345,7 @@ static void
     if(subghz_custom_btn_get_original() == 0) {
         subghz_custom_btn_set_original(instance->btn);
     }
-    subghz_custom_btn_set_max(3);
+    subghz_custom_btn_set_max(4);
 }
 
 /** 
@@ -377,7 +377,7 @@ static uint64_t subghz_protocol_secplus_v2_encode_half(uint8_t roll_array[], uin
 
 /**
  * Defines the button value for the current btn_id
- * Basic set | 0x68 | 0x80 | 0x81 | 0xE2 |
+ * Basic set | 0x68 | 0x80 | 0x81 | 0xE2 | 0x78
  * @return Button code
  */
 static uint8_t subghz_protocol_secplus_v2_get_btn_code();
@@ -856,6 +856,9 @@ static uint8_t subghz_protocol_secplus_v2_get_btn_code() {
         case 0xE2:
             btn = 0x80;
             break;
+        case 0x78:
+            btn = 0x80;
+            break;
 
         default:
             break;
@@ -874,6 +877,9 @@ static uint8_t subghz_protocol_secplus_v2_get_btn_code() {
         case 0xE2:
             btn = 0x81;
             break;
+        case 0x78:
+            btn = 0x81;
+            break;
 
         default:
             break;
@@ -892,6 +898,30 @@ static uint8_t subghz_protocol_secplus_v2_get_btn_code() {
         case 0xE2:
             btn = 0x68;
             break;
+        case 0x78:
+            btn = 0xE2;
+            break;
+
+        default:
+            break;
+        }
+    } else if(custom_btn_id == SUBGHZ_CUSTOM_BTN_RIGHT) {
+        switch(original_btn_code) {
+        case 0x68:
+            btn = 0x78;
+            break;
+        case 0x80:
+            btn = 0x78;
+            break;
+        case 0x81:
+            btn = 0x78;
+            break;
+        case 0xE2:
+            btn = 0x78;
+            break;
+        case 0x78:
+            btn = 0x68;
+            break;
 
         default:
             break;