diff --git a/.gitmodules b/.gitmodules
index 671e7e2c4..4fba0483e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,6 +10,7 @@
 [submodule "assets/protobuf"]
 	path = assets/protobuf
 	url = https://github.com/flipperdevices/flipperzero-protobuf.git
+	shallow = false
 [submodule "lib/libusb_stm32"]
 	path = lib/libusb_stm32
 	url = https://github.com/flipperdevices/libusb_stm32.git
diff --git a/applications/debug/unit_tests/rpc/rpc_test.c b/applications/debug/unit_tests/rpc/rpc_test.c
index 167266a84..533a8a9ca 100644
--- a/applications/debug/unit_tests/rpc/rpc_test.c
+++ b/applications/debug/unit_tests/rpc/rpc_test.c
@@ -13,7 +13,7 @@
 #include <pb.h>
 #include <pb_encode.h>
 #include <m-list.h>
-#include <lib/toolbox/md5.h>
+#include <lib/toolbox/md5_calc.h>
 #include <lib/toolbox/path.h>
 #include <cli/cli.h>
 #include <loader/loader.h>
@@ -287,7 +287,8 @@ static void test_rpc_create_simple_message(
     PB_Main* message,
     uint16_t tag,
     const char* str,
-    uint32_t command_id) {
+    uint32_t command_id,
+    bool flag) {
     furi_check(message);
 
     char* str_copy = NULL;
@@ -308,6 +309,7 @@ static void test_rpc_create_simple_message(
         break;
     case PB_Main_storage_list_request_tag:
         message->content.storage_list_request.path = str_copy;
+        message->content.storage_list_request.include_md5 = flag;
         break;
     case PB_Main_storage_mkdir_request_tag:
         message->content.storage_mkdir_request.path = str_copy;
@@ -419,6 +421,7 @@ static void
     }
     mu_check(result_msg_file->size == expected_msg_file->size);
     mu_check(result_msg_file->type == expected_msg_file->type);
+    mu_assert_string_eq(expected_msg_file->md5sum, result_msg_file->md5sum);
 
     if(result_msg_file->data && result_msg_file->type != PB_Storage_File_FileType_DIR) {
         mu_check(!result_msg_file->data == !expected_msg_file->data); // Zlo: WTF???
@@ -430,10 +433,10 @@ static void
 }
 
 static void test_rpc_compare_messages(PB_Main* result, PB_Main* expected) {
-    mu_check(result->command_id == expected->command_id);
-    mu_check(result->command_status == expected->command_status);
-    mu_check(result->has_next == expected->has_next);
-    mu_check(result->which_content == expected->which_content);
+    mu_assert_int_eq(expected->command_id, result->command_id);
+    mu_assert_int_eq(expected->command_status, result->command_status);
+    mu_assert_int_eq(expected->has_next, result->has_next);
+    mu_assert_int_eq(expected->which_content, result->which_content);
     if(result->command_status != PB_CommandStatus_OK) {
         mu_check(result->which_content == PB_Main_empty_tag);
     }
@@ -573,10 +576,15 @@ static void
 static void test_rpc_storage_list_create_expected_list(
     MsgList_t msg_list,
     const char* path,
-    uint32_t command_id) {
+    uint32_t command_id,
+    bool append_md5) {
     Storage* fs_api = furi_record_open(RECORD_STORAGE);
     File* dir = storage_file_alloc(fs_api);
 
+    FuriString* md5 = furi_string_alloc();
+    FuriString* md5_path = furi_string_alloc();
+    File* file = storage_file_alloc(fs_api);
+
     PB_Main response = {
         .command_id = command_id,
         .has_next = false,
@@ -614,6 +622,17 @@ static void test_rpc_storage_list_create_expected_list(
                 list->file[i].data = NULL;
                 /* memory free inside rpc_encode_and_send() -> pb_release() */
                 list->file[i].name = name;
+
+                if(append_md5 && !file_info_is_dir(&fileinfo)) {
+                    furi_string_printf(md5_path, "%s/%s", path, name);
+
+                    if(md5_string_calc_file(file, furi_string_get_cstr(md5_path), md5, NULL)) {
+                        char* md5sum = list->file[i].md5sum;
+                        size_t md5sum_size = sizeof(list->file[i].md5sum);
+                        snprintf(md5sum, md5sum_size, "%s", furi_string_get_cstr(md5));
+                    }
+                }
+
                 ++i;
             }
         } else {
@@ -626,6 +645,10 @@ static void test_rpc_storage_list_create_expected_list(
     response.has_next = false;
     MsgList_push_back(msg_list, response);
 
+    furi_string_free(md5);
+    furi_string_free(md5_path);
+    storage_file_free(file);
+
     storage_dir_close(dir);
     storage_file_free(dir);
 
@@ -675,16 +698,17 @@ static void test_rpc_free_msg_list(MsgList_t msg_list) {
     MsgList_clear(msg_list);
 }
 
-static void test_rpc_storage_list_run(const char* path, uint32_t command_id) {
+static void test_rpc_storage_list_run(const char* path, uint32_t command_id, bool md5) {
     PB_Main request;
     MsgList_t expected_msg_list;
     MsgList_init(expected_msg_list);
 
-    test_rpc_create_simple_message(&request, PB_Main_storage_list_request_tag, path, command_id);
+    test_rpc_create_simple_message(
+        &request, PB_Main_storage_list_request_tag, path, command_id, md5);
     if(!strcmp(path, "/")) {
         test_rpc_storage_list_create_expected_list_root(expected_msg_list, command_id);
     } else {
-        test_rpc_storage_list_create_expected_list(expected_msg_list, path, command_id);
+        test_rpc_storage_list_create_expected_list(expected_msg_list, path, command_id, md5);
     }
     test_rpc_encode_and_feed_one(&request, 0);
     test_rpc_decode_and_compare(expected_msg_list, 0);
@@ -694,15 +718,25 @@ static void test_rpc_storage_list_run(const char* path, uint32_t command_id) {
 }
 
 MU_TEST(test_storage_list) {
-    test_rpc_storage_list_run("/", ++command_id);
-    test_rpc_storage_list_run(EXT_PATH("nfc"), ++command_id);
+    test_rpc_storage_list_run("/", ++command_id, false);
+    test_rpc_storage_list_run(EXT_PATH("nfc"), ++command_id, false);
+    test_rpc_storage_list_run(STORAGE_INT_PATH_PREFIX, ++command_id, false);
+    test_rpc_storage_list_run(STORAGE_EXT_PATH_PREFIX, ++command_id, false);
+    test_rpc_storage_list_run(EXT_PATH("infrared"), ++command_id, false);
+    test_rpc_storage_list_run(EXT_PATH("ibutton"), ++command_id, false);
+    test_rpc_storage_list_run(EXT_PATH("lfrfid"), ++command_id, false);
+    test_rpc_storage_list_run("error_path", ++command_id, false);
+}
 
-    test_rpc_storage_list_run(STORAGE_INT_PATH_PREFIX, ++command_id);
-    test_rpc_storage_list_run(STORAGE_EXT_PATH_PREFIX, ++command_id);
-    test_rpc_storage_list_run(EXT_PATH("infrared"), ++command_id);
-    test_rpc_storage_list_run(EXT_PATH("ibutton"), ++command_id);
-    test_rpc_storage_list_run(EXT_PATH("lfrfid"), ++command_id);
-    test_rpc_storage_list_run("error_path", ++command_id);
+MU_TEST(test_storage_list_md5) {
+    test_rpc_storage_list_run("/", ++command_id, true);
+    test_rpc_storage_list_run(EXT_PATH("nfc"), ++command_id, true);
+    test_rpc_storage_list_run(STORAGE_INT_PATH_PREFIX, ++command_id, true);
+    test_rpc_storage_list_run(STORAGE_EXT_PATH_PREFIX, ++command_id, true);
+    test_rpc_storage_list_run(EXT_PATH("infrared"), ++command_id, true);
+    test_rpc_storage_list_run(EXT_PATH("ibutton"), ++command_id, true);
+    test_rpc_storage_list_run(EXT_PATH("lfrfid"), ++command_id, true);
+    test_rpc_storage_list_run("error_path", ++command_id, true);
 }
 
 static void
@@ -770,7 +804,8 @@ static void test_storage_read_run(const char* path, uint32_t command_id) {
     MsgList_init(expected_msg_list);
 
     test_rpc_add_read_to_list_by_reading_real_file(expected_msg_list, path, command_id);
-    test_rpc_create_simple_message(&request, PB_Main_storage_read_request_tag, path, command_id);
+    test_rpc_create_simple_message(
+        &request, PB_Main_storage_read_request_tag, path, command_id, false);
     test_rpc_encode_and_feed_one(&request, 0);
     test_rpc_decode_and_compare(expected_msg_list, 0);
 
@@ -824,7 +859,8 @@ static void test_rpc_storage_info_run(const char* path, uint32_t command_id) {
     MsgList_t expected_msg_list;
     MsgList_init(expected_msg_list);
 
-    test_rpc_create_simple_message(&request, PB_Main_storage_info_request_tag, path, command_id);
+    test_rpc_create_simple_message(
+        &request, PB_Main_storage_info_request_tag, path, command_id, false);
 
     PB_Main* response = MsgList_push_new(expected_msg_list);
     response->command_id = command_id;
@@ -856,7 +892,8 @@ static void test_rpc_storage_stat_run(const char* path, uint32_t command_id) {
     MsgList_t expected_msg_list;
     MsgList_init(expected_msg_list);
 
-    test_rpc_create_simple_message(&request, PB_Main_storage_stat_request_tag, path, command_id);
+    test_rpc_create_simple_message(
+        &request, PB_Main_storage_stat_request_tag, path, command_id, false);
 
     Storage* fs_api = furi_record_open(RECORD_STORAGE);
     FileInfo fileinfo;
@@ -968,7 +1005,11 @@ static void test_storage_write_read_run(
     test_rpc_add_empty_to_list(expected_msg_list, PB_CommandStatus_OK, *command_id);
 
     test_rpc_create_simple_message(
-        MsgList_push_raw(input_msg_list), PB_Main_storage_read_request_tag, path, ++*command_id);
+        MsgList_push_raw(input_msg_list),
+        PB_Main_storage_read_request_tag,
+        path,
+        ++*command_id,
+        false);
     test_rpc_add_read_or_write_to_list(
         expected_msg_list,
         READ_RESPONSE,
@@ -1041,7 +1082,8 @@ MU_TEST(test_storage_interrupt_continuous_same_system) {
         MsgList_push_new(input_msg_list),
         PB_Main_storage_mkdir_request_tag,
         TEST_DIR "dir1",
-        command_id + 1);
+        command_id + 1,
+        false);
     test_rpc_add_read_or_write_to_list(
         input_msg_list,
         WRITE_REQUEST,
@@ -1121,7 +1163,8 @@ static void test_storage_delete_run(
     MsgList_t expected_msg_list;
     MsgList_init(expected_msg_list);
 
-    test_rpc_create_simple_message(&request, PB_Main_storage_delete_request_tag, path, command_id);
+    test_rpc_create_simple_message(
+        &request, PB_Main_storage_delete_request_tag, path, command_id, false);
     request.content.storage_delete_request.recursive = recursive;
     test_rpc_add_empty_to_list(expected_msg_list, status, command_id);
 
@@ -1202,7 +1245,8 @@ static void test_storage_mkdir_run(const char* path, size_t command_id, PB_Comma
     MsgList_t expected_msg_list;
     MsgList_init(expected_msg_list);
 
-    test_rpc_create_simple_message(&request, PB_Main_storage_mkdir_request_tag, path, command_id);
+    test_rpc_create_simple_message(
+        &request, PB_Main_storage_mkdir_request_tag, path, command_id, false);
     test_rpc_add_empty_to_list(expected_msg_list, status, command_id);
 
     test_rpc_encode_and_feed_one(&request, 0);
@@ -1229,33 +1273,15 @@ MU_TEST(test_storage_mkdir) {
 static void test_storage_calculate_md5sum(const char* path, char* md5sum, size_t md5sum_size) {
     Storage* api = furi_record_open(RECORD_STORAGE);
     File* file = storage_file_alloc(api);
+    FuriString* md5 = furi_string_alloc();
 
-    if(storage_file_open(file, path, FSAM_READ, FSOM_OPEN_EXISTING)) {
-        const uint16_t once_read_size = 512;
-        const uint8_t hash_size = MD5SUM_SIZE;
-        uint8_t* data = malloc(once_read_size);
-        uint8_t* hash = malloc(sizeof(uint8_t) * hash_size);
-        md5_context* md5_ctx = malloc(sizeof(md5_context));
-
-        md5_starts(md5_ctx);
-        while(true) {
-            uint16_t read_size = storage_file_read(file, data, once_read_size);
-            if(read_size == 0) break;
-            md5_update(md5_ctx, data, read_size);
-        }
-        md5_finish(md5_ctx, hash);
-        free(md5_ctx);
-
-        for(uint8_t i = 0; i < hash_size; i++) {
-            md5sum += snprintf(md5sum, md5sum_size, "%02x", hash[i]);
-        }
-
-        free(hash);
-        free(data);
+    if(md5_string_calc_file(file, path, md5, NULL)) {
+        snprintf(md5sum, md5sum_size, "%s", furi_string_get_cstr(md5));
     } else {
         furi_check(0);
     }
 
+    furi_string_free(md5);
     storage_file_close(file);
     storage_file_free(file);
 
@@ -1271,11 +1297,12 @@ static void test_storage_md5sum_run(
     MsgList_t expected_msg_list;
     MsgList_init(expected_msg_list);
 
-    test_rpc_create_simple_message(&request, PB_Main_storage_md5sum_request_tag, path, command_id);
+    test_rpc_create_simple_message(
+        &request, PB_Main_storage_md5sum_request_tag, path, command_id, false);
     if(status == PB_CommandStatus_OK) {
         PB_Main* response = MsgList_push_new(expected_msg_list);
         test_rpc_create_simple_message(
-            response, PB_Main_storage_md5sum_response_tag, md5sum, command_id);
+            response, PB_Main_storage_md5sum_response_tag, md5sum, command_id, false);
         response->command_status = status;
     } else {
         test_rpc_add_empty_to_list(expected_msg_list, status, command_id);
@@ -1433,6 +1460,7 @@ MU_TEST_SUITE(test_rpc_storage) {
     MU_RUN_TEST(test_storage_info);
     MU_RUN_TEST(test_storage_stat);
     MU_RUN_TEST(test_storage_list);
+    MU_RUN_TEST(test_storage_list_md5);
     MU_RUN_TEST(test_storage_read);
     MU_RUN_TEST(test_storage_write_read);
     MU_RUN_TEST(test_storage_write);
@@ -1731,7 +1759,8 @@ MU_TEST(test_rpc_multisession_storage) {
         MsgList_push_raw(input_0),
         PB_Main_storage_read_request_tag,
         TEST_DIR "file0.txt",
-        ++command_id);
+        ++command_id,
+        false);
     test_rpc_add_read_or_write_to_list(
         expected_0, READ_RESPONSE, TEST_DIR "file0.txt", pattern, sizeof(pattern), 1, command_id);
 
@@ -1739,7 +1768,8 @@ MU_TEST(test_rpc_multisession_storage) {
         MsgList_push_raw(input_1),
         PB_Main_storage_read_request_tag,
         TEST_DIR "file1.txt",
-        ++command_id);
+        ++command_id,
+        false);
     test_rpc_add_read_or_write_to_list(
         expected_1, READ_RESPONSE, TEST_DIR "file1.txt", pattern, sizeof(pattern), 1, command_id);
 
diff --git a/applications/debug/unit_tests/storage/storage_test.c b/applications/debug/unit_tests/storage/storage_test.c
index f0b45c598..13188e5e0 100644
--- a/applications/debug/unit_tests/storage/storage_test.c
+++ b/applications/debug/unit_tests/storage/storage_test.c
@@ -582,6 +582,49 @@ MU_TEST(test_storage_common_migrate) {
     furi_record_close(RECORD_STORAGE);
 }
 
+#define MD5_HASH_SIZE (16)
+#include <lib/toolbox/md5_calc.h>
+
+MU_TEST(test_md5_calc) {
+    Storage* storage = furi_record_open(RECORD_STORAGE);
+    File* file = storage_file_alloc(storage);
+
+    const char* path = UNIT_TESTS_PATH("storage/md5.txt");
+    const char* md5_cstr = "2a456fa43e75088fdde41c93159d62a2";
+    const uint8_t md5[MD5_HASH_SIZE] = {
+        0x2a,
+        0x45,
+        0x6f,
+        0xa4,
+        0x3e,
+        0x75,
+        0x08,
+        0x8f,
+        0xdd,
+        0xe4,
+        0x1c,
+        0x93,
+        0x15,
+        0x9d,
+        0x62,
+        0xa2,
+    };
+
+    uint8_t md5_output[MD5_HASH_SIZE];
+    FuriString* md5_output_str = furi_string_alloc();
+    memset(md5_output, 0, MD5_HASH_SIZE);
+
+    mu_check(md5_calc_file(file, path, md5_output, NULL));
+    mu_check(md5_string_calc_file(file, path, md5_output_str, NULL));
+
+    mu_assert_mem_eq(md5, md5_output, MD5_HASH_SIZE);
+    mu_assert_string_eq(md5_cstr, furi_string_get_cstr(md5_output_str));
+
+    storage_file_free(file);
+    furi_string_free(md5_output_str);
+    furi_record_close(RECORD_STORAGE);
+}
+
 MU_TEST_SUITE(test_data_path) {
     MU_RUN_TEST(test_storage_data_path);
     MU_RUN_TEST(test_storage_data_path_apps);
@@ -591,11 +634,16 @@ MU_TEST_SUITE(test_storage_common) {
     MU_RUN_TEST(test_storage_common_migrate);
 }
 
+MU_TEST_SUITE(test_md5_calc_suite) {
+    MU_RUN_TEST(test_md5_calc);
+}
+
 int run_minunit_test_storage() {
     MU_RUN_SUITE(storage_file);
     MU_RUN_SUITE(storage_dir);
     MU_RUN_SUITE(storage_rename);
     MU_RUN_SUITE(test_data_path);
     MU_RUN_SUITE(test_storage_common);
+    MU_RUN_SUITE(test_md5_calc_suite);
     return MU_EXIT_CODE;
 }
diff --git a/applications/services/rpc/rpc_storage.c b/applications/services/rpc/rpc_storage.c
index c3a4a0470..93c7043e8 100644
--- a/applications/services/rpc/rpc_storage.c
+++ b/applications/services/rpc/rpc_storage.c
@@ -9,7 +9,7 @@
 #include "storage/filesystem_api_defines.h"
 #include "storage/storage.h"
 #include <stdint.h>
-#include <lib/toolbox/md5.h>
+#include <lib/toolbox/md5_calc.h>
 #include <lib/toolbox/path.h>
 #include <update_util/lfs_backup.h>
 
@@ -271,6 +271,11 @@ static void rpc_system_storage_list_process(const PB_Main* request, void* contex
     };
     PB_Storage_ListResponse* list = &response.content.storage_list_response;
 
+    bool include_md5 = request->content.storage_list_request.include_md5;
+    FuriString* md5 = furi_string_alloc();
+    FuriString* md5_path = furi_string_alloc();
+    File* file = storage_file_alloc(fs_api);
+
     bool finish = false;
     int i = 0;
 
@@ -296,6 +301,21 @@ static void rpc_system_storage_list_process(const PB_Main* request, void* contex
                 list->file[i].size = fileinfo.size;
                 list->file[i].data = NULL;
                 list->file[i].name = name;
+
+                if(include_md5 && !file_info_is_dir(&fileinfo)) {
+                    furi_string_printf( //-V576
+                        md5_path,
+                        "%s/%s",
+                        request->content.storage_list_request.path,
+                        name);
+
+                    if(md5_string_calc_file(file, furi_string_get_cstr(md5_path), md5, NULL)) {
+                        char* md5sum = list->file[i].md5sum;
+                        size_t md5sum_size = sizeof(list->file[i].md5sum);
+                        snprintf(md5sum, md5sum_size, "%s", furi_string_get_cstr(md5));
+                    }
+                }
+
                 ++i;
             } else {
                 free(name);
@@ -310,8 +330,11 @@ static void rpc_system_storage_list_process(const PB_Main* request, void* contex
     response.has_next = false;
     rpc_send_and_release(session, &response);
 
+    furi_string_free(md5);
+    furi_string_free(md5_path);
     storage_dir_close(dir);
     storage_file_free(dir);
+    storage_file_free(file);
 
     furi_record_close(RECORD_STORAGE);
 }
@@ -569,23 +592,10 @@ static void rpc_system_storage_md5sum_process(const PB_Main* request, void* cont
 
     Storage* fs_api = furi_record_open(RECORD_STORAGE);
     File* file = storage_file_alloc(fs_api);
+    FuriString* md5 = furi_string_alloc();
+    FS_Error file_error;
 
-    if(storage_file_open(file, filename, FSAM_READ, FSOM_OPEN_EXISTING)) {
-        const uint16_t size_to_read = 512;
-        const uint8_t hash_size = 16;
-        uint8_t* data = malloc(size_to_read);
-        uint8_t* hash = malloc(sizeof(uint8_t) * hash_size);
-        md5_context* md5_ctx = malloc(sizeof(md5_context));
-
-        md5_starts(md5_ctx);
-        while(true) {
-            uint16_t read_size = storage_file_read(file, data, size_to_read);
-            if(read_size == 0) break;
-            md5_update(md5_ctx, data, read_size);
-        }
-        md5_finish(md5_ctx, hash);
-        free(md5_ctx);
-
+    if(md5_string_calc_file(file, filename, md5, &file_error)) {
         PB_Main response = {
             .command_id = request->command_id,
             .command_status = PB_CommandStatus_OK,
@@ -595,21 +605,15 @@ static void rpc_system_storage_md5sum_process(const PB_Main* request, void* cont
 
         char* md5sum = response.content.storage_md5sum_response.md5sum;
         size_t md5sum_size = sizeof(response.content.storage_md5sum_response.md5sum);
-        (void)md5sum_size;
-        furi_assert(hash_size <= ((md5sum_size - 1) / 2)); //-V547
-        for(uint8_t i = 0; i < hash_size; i++) {
-            md5sum += snprintf(md5sum, md5sum_size, "%02x", hash[i]);
-        }
+        snprintf(md5sum, md5sum_size, "%s", furi_string_get_cstr(md5));
 
-        free(hash);
-        free(data);
-        storage_file_close(file);
         rpc_send_and_release(session, &response);
     } else {
         rpc_send_and_release_empty(
-            session, request->command_id, rpc_system_storage_get_file_error(file));
+            session, request->command_id, rpc_system_storage_get_error(file_error));
     }
 
+    furi_string_free(md5);
     storage_file_free(file);
 
     furi_record_close(RECORD_STORAGE);
diff --git a/applications/services/storage/storage_cli.c b/applications/services/storage/storage_cli.c
index 8e2dcdbbb..74bcf2d92 100644
--- a/applications/services/storage/storage_cli.c
+++ b/applications/services/storage/storage_cli.c
@@ -3,7 +3,7 @@
 
 #include <cli/cli.h>
 #include <lib/toolbox/args.h>
-#include <lib/toolbox/md5.h>
+#include <lib/toolbox/md5_calc.h>
 #include <lib/toolbox/dir_walk.h>
 #include <storage/storage.h>
 #include <storage/storage_sd_api.h>
@@ -482,34 +482,16 @@ static void storage_cli_md5(Cli* cli, FuriString* path) {
     UNUSED(cli);
     Storage* api = furi_record_open(RECORD_STORAGE);
     File* file = storage_file_alloc(api);
+    FuriString* md5 = furi_string_alloc();
+    FS_Error file_error;
 
-    if(storage_file_open(file, furi_string_get_cstr(path), FSAM_READ, FSOM_OPEN_EXISTING)) {
-        const uint16_t buffer_size = 512;
-        const uint8_t hash_size = 16;
-        uint8_t* data = malloc(buffer_size);
-        uint8_t* hash = malloc(sizeof(uint8_t) * hash_size);
-        md5_context* md5_ctx = malloc(sizeof(md5_context));
-
-        md5_starts(md5_ctx);
-        while(true) {
-            uint16_t read_size = storage_file_read(file, data, buffer_size);
-            if(read_size == 0) break;
-            md5_update(md5_ctx, data, read_size);
-        }
-        md5_finish(md5_ctx, hash);
-        free(md5_ctx);
-
-        for(uint8_t i = 0; i < hash_size; i++) {
-            printf("%02x", hash[i]);
-        }
-        printf("\r\n");
-
-        free(hash);
-        free(data);
+    if(md5_string_calc_file(file, furi_string_get_cstr(path), md5, &file_error)) {
+        printf("%s\r\n", furi_string_get_cstr(md5));
     } else {
-        storage_cli_print_error(storage_file_get_error(file));
+        storage_cli_print_error(file_error);
     }
 
+    furi_string_free(md5);
     storage_file_close(file);
     storage_file_free(file);
 
diff --git a/assets/protobuf b/assets/protobuf
index 08a907d95..7e011a958 160000
--- a/assets/protobuf
+++ b/assets/protobuf
@@ -1 +1 @@
-Subproject commit 08a907d95733600becc41c0602ef5ee4c4baf782
+Subproject commit 7e011a95863716e72e7c6b5d552bca241d688304
diff --git a/assets/unit_tests/storage/md5.txt b/assets/unit_tests/storage/md5.txt
new file mode 100644
index 000000000..777e390be
--- /dev/null
+++ b/assets/unit_tests/storage/md5.txt
@@ -0,0 +1 @@
+Yo dawg, I heard you like md5...
\ No newline at end of file
diff --git a/fbt b/fbt
index ef41cc056..471285a76 100755
--- a/fbt
+++ b/fbt
@@ -29,7 +29,7 @@ if [ -z "$FBT_NO_SYNC" ]; then
         echo "\".git\" directory not found, please clone repo via \"git clone\"";
         exit 1;
     fi
-    git submodule update --init --depth 1 --jobs "$N_GIT_THREADS";
+    git submodule update --init --jobs "$N_GIT_THREADS";
 fi
 
 $SCONS_EP $SCONS_DEFAULT_FLAGS "$@"
diff --git a/furi/core/thread.c b/furi/core/thread.c
index 657b867d1..de50bde7a 100644
--- a/furi/core/thread.c
+++ b/furi/core/thread.c
@@ -92,10 +92,10 @@ static void furi_thread_body(void* context) {
     if(thread->heap_trace_enabled == true) {
         furi_delay_ms(33);
         thread->heap_size = memmgr_heap_get_thread_memory((FuriThreadId)task_handle);
-        furi_log_print_format( //-V576
+        furi_log_print_format(
             thread->heap_size ? FuriLogLevelError : FuriLogLevelInfo,
             TAG,
-            "%s allocation balance: %u",
+            "%s allocation balance: %zu",
             thread->name ? thread->name : "Thread",
             thread->heap_size);
         memmgr_heap_disable_thread_trace((FuriThreadId)task_handle);
diff --git a/lib/flipper_application/elf/elf_file.c b/lib/flipper_application/elf/elf_file.c
index fc9dd06ba..539a48c85 100644
--- a/lib/flipper_application/elf/elf_file.c
+++ b/lib/flipper_application/elf/elf_file.c
@@ -892,7 +892,7 @@ ELFFileLoadStatus elf_file_load_sections(ELFFile* elf) {
             ELFSectionDict_itref_t* itref = ELFSectionDict_ref(it);
             total_size += itref->value.size;
         }
-        FURI_LOG_I(TAG, "Total size of loaded sections: %u", total_size); //-V576
+        FURI_LOG_I(TAG, "Total size of loaded sections: %zu", total_size);
     }
 
     return status;
diff --git a/lib/toolbox/md5_calc.c b/lib/toolbox/md5_calc.c
new file mode 100644
index 000000000..b050295a1
--- /dev/null
+++ b/lib/toolbox/md5_calc.c
@@ -0,0 +1,44 @@
+#include "md5.h"
+#include "md5_calc.h"
+
+bool md5_calc_file(File* file, const char* path, unsigned char output[16], FS_Error* file_error) {
+    bool result = storage_file_open(file, path, FSAM_READ, FSOM_OPEN_EXISTING);
+
+    if(result) {
+        const uint16_t size_to_read = 512;
+        uint8_t* data = malloc(size_to_read);
+        md5_context* md5_ctx = malloc(sizeof(md5_context));
+
+        md5_starts(md5_ctx);
+        while(true) {
+            uint16_t read_size = storage_file_read(file, data, size_to_read);
+            if(read_size == 0) break;
+            md5_update(md5_ctx, data, read_size);
+        }
+        md5_finish(md5_ctx, output);
+        free(md5_ctx);
+        free(data);
+    }
+
+    if(file_error != NULL) {
+        *file_error = storage_file_get_error(file);
+    }
+
+    storage_file_close(file);
+    return result;
+}
+
+bool md5_string_calc_file(File* file, const char* path, FuriString* output, FS_Error* file_error) {
+    const size_t hash_size = 16;
+    unsigned char hash[hash_size];
+    bool result = md5_calc_file(file, path, hash, file_error);
+
+    if(result) {
+        furi_string_set(output, "");
+        for(size_t i = 0; i < hash_size; i++) {
+            furi_string_cat_printf(output, "%02x", hash[i]);
+        }
+    }
+
+    return result;
+}
\ No newline at end of file
diff --git a/lib/toolbox/md5_calc.h b/lib/toolbox/md5_calc.h
new file mode 100644
index 000000000..cf82e3718
--- /dev/null
+++ b/lib/toolbox/md5_calc.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#include <stdint.h>
+#include <storage/storage.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+bool md5_calc_file(File* file, const char* path, unsigned char output[16], FS_Error* file_error);
+
+bool md5_string_calc_file(File* file, const char* path, FuriString* output, FS_Error* file_error);
+
+#ifdef __cplusplus
+}
+#endif