diff --git a/danix/danixfs.py b/danix/danixfs.py
index 47df02c..dd1a5a5 100644
--- a/danix/danixfs.py
+++ b/danix/danixfs.py
@@ -1,6 +1,8 @@
 import os, settings, app
 from sh import du
 from settings import MAIN_REPO
+from utils import download_checksum, validate_checksum
+from utils import get_message, check_equal_sentence as equals, generate_checksum, remove_checksum_files
 class Danix():
 
     @staticmethod
@@ -69,29 +71,43 @@ class Danix():
 
         os.system(f"mkdir /tmp/{filesystem}")
         os.system(f"curl --silent -LO --output-dir /tmp/{filesystem} {settings.REPO_NAME}/{settings.ROOT_FS}")
-        os.system(f"tar -xf /tmp/{filesystem}/{settings.ROOT_FS} -C /tmp/{filesystem}")
-        os.system(f"rm /tmp/{filesystem}/{settings.ROOT_FS}")
-        os.system(f"mv /tmp/{filesystem} {MAIN_REPO}")
-
-        print("\nPlease! Wait a moment!!")
-        print("Building container:")
-        print(f"Installing {len(packages)} packages\n")
-
-        for command in config_comands:
-            os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs {command}")
-
-        for package in packages:
-            os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs apk add {package}")
-
-        os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs apk add fish")
-        os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs apk add ruby")
-        os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs gem install lolcat")
         
-        os.system(f"rm -r {MAIN_REPO}{filesystem}/danixfs/dev >/dev/null 2>&1")
-        os.system(f"rm -r {MAIN_REPO}{filesystem}/danixfs/proc >/dev/null 2>&1")
-        os.system(f"rm -r {MAIN_REPO}{filesystem}/danixfs/sys >/dev/null 2>&1")
-
-        print(f"Environment builded succesfully!")
-        print("0 erros reported!")
+        resp_downloaded_checksum = download_checksum() 
+        resp_generateed_checksum = generate_checksum(f"/tmp/{filesystem}/{settings.ROOT_FS}")
         
-        Danix.navigate(filesystem)
+        is_downloaded_and_generate = equals(resp_downloaded_checksum, 0) and equals(resp_generateed_checksum, 0)
+        
+        is_valid_checksum = validate_checksum(filesystem)
+
+        remove_checksum_files()
+
+        if is_downloaded_and_generate and is_valid_checksum:
+
+            os.system(f"tar -xf /tmp/{filesystem}/{settings.ROOT_FS} -C /tmp/{filesystem}")
+            os.system(f"rm /tmp/{filesystem}/{settings.ROOT_FS}")
+            os.system(f"mv /tmp/{filesystem} {MAIN_REPO}")
+
+            print("\nPlease! Wait a moment!!")
+            print("Building container:")
+            print(f"Installing {len(packages)} packages\n")
+
+            for command in config_comands:
+                os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs {command}")
+
+            for package in packages:
+                os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs apk add {package}")
+
+            os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs apk add fish")
+            os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs apk add ruby")
+            os.system(f"chroot {MAIN_REPO}{filesystem}/danixfs gem install lolcat")
+
+            os.system(f"rm -r {MAIN_REPO}{filesystem}/danixfs/dev >/dev/null 2>&1")
+            os.system(f"rm -r {MAIN_REPO}{filesystem}/danixfs/proc >/dev/null 2>&1")
+            os.system(f"rm -r {MAIN_REPO}{filesystem}/danixfs/sys >/dev/null 2>&1")
+
+            print(f"Environment builded succesfully!")
+            print("0 erros reported!")
+
+            Danix.navigate(filesystem)
+        else:
+            get_message("🔴 Failed integrity base image verification!", True, 1)
diff --git a/danix/makefile b/danix/makefile
index 242b9a1..282af67 100644
--- a/danix/makefile
+++ b/danix/makefile
@@ -50,7 +50,7 @@ else
 
 	@$(PYTHON) $(DANIX_PATH)/manage.py migrate
 	
-	@echo "Installation successfully!!! Please 'make aliases without sudo'"
+	@echo "Installation successfully!!! Please 'make aliases without' sudo"
 
 endif
 	
diff --git a/danix/utils.py b/danix/utils.py
index 659b8d1..0220878 100644
--- a/danix/utils.py
+++ b/danix/utils.py
@@ -1,5 +1,33 @@
 import os
-from settings import MAIN_REPO, MAIN_DIR, BASE_DIR
+import sh
+from settings import MAIN_REPO, MAIN_DIR, BASE_DIR, REPO_NAME
+
+
+def download_checksum():
+
+    return os.system(f"curl --silent -LO --output-dir /tmp/ {REPO_NAME}danixfs.checksum")
+
+
+def generate_checksum(package_path):
+    os.system("touch /tmp/local_danixfs.checksum")
+    return os.system(f"sha256sum {package_path} >> /tmp/local_danixfs.checksum")
+
+
+def remove_checksum_files():
+    os.system("rm /tmp/danixfs.checksum >/dev/null 2>&1")
+    os.system("rm /tmp/local_danixfs.checksum >/dev/null 2>&1")
+
+def read_line(file_path):
+    file = open(file_path, 'r')
+    checksum = file.readlines()
+    return checksum
+ 
+def validate_checksum(filesystem):
+
+    remote_checksum = ''.join(read_line(f"/tmp/danixfs.checksum")).replace(f"/tmp/{filesystem}/", "")
+    local_checksum  = ''.join(read_line(f"/tmp/local_danixfs.checksum")).replace(f"/tmp/{filesystem}/", "")
+
+    return True if local_checksum == remote_checksum else False
 
 def separate(path):
     list_path = path.split(" ")
@@ -91,6 +119,7 @@ def print_environment_list_header():
 
 @staticmethod
 def check_equal_sentence(left_expression, right_expression):
+
     return left_expression == right_expression
 
 @staticmethod