diff --git a/pyproject.toml b/pyproject.toml
index b5b3b7c..b3f76a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,4 +4,7 @@ version = "0.1.0"
 description = "Add your description here"
 readme = "README.md"
 requires-python = ">=3.13"
-dependencies = []
+dependencies = [
+    "cryptography>=44.0.2",
+    "playwright>=1.50.0",
+]
diff --git a/src/database.py b/src/database.py
new file mode 100644
index 0000000..ce52480
--- /dev/null
+++ b/src/database.py
@@ -0,0 +1,32 @@
+import sqlite3
+
+
+class Database:
+    def __init__(self):
+        self.conn = sqlite3.connect("database.db")
+        self.cursor = self.conn.cursor()
+        self.create_table()
+
+    def create_table(self):
+        self.cursor.execute(
+            "CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, username TEXT, password TEXT)"
+        )
+        self.conn.commit()
+
+    def add_user(self, username, password):
+        self.cursor.execute(
+            "INSERT INTO users (username, password) VALUES (?, ?)", (username, password)
+        )
+        self.conn.commit()
+
+    def get_password(self, username):
+        self.cursor.execute(
+            "SELECT password FROM users WHERE username = ?", (username,)
+        )
+        return self.cursor.fetchone()
+
+    def change_password(self, username, password):
+        self.cursor.execute(
+            "UPDATE users SET password = ? WHERE username = ?", (password, username)
+        )
+        self.conn.commit()
diff --git a/src/security.py b/src/security.py
new file mode 100644
index 0000000..ba62d23
--- /dev/null
+++ b/src/security.py
@@ -0,0 +1,36 @@
+import cryptography
+from cryptography.fernet import Fernet
+from .database import Database
+
+# import library to create a random key
+import random
+
+
+def set_data():
+    user = input("Enter username: ")
+    fernet_key = Fernet.generate_key()
+    with open("key.key", "w") as key_file:
+        key = f"{user}|{fernet_key.decode()}"
+        key_file.write(key)
+
+    # ask for password, do not show the password
+    password = input("Enter password: ")
+    # encrypt the password
+    cipher_suite = Fernet(fernet_key)
+    ciphered_text = cipher_suite.encrypt(password.encode())
+    db = Database()
+    db.add_user(user, ciphered_text)
+
+
+def get_data():
+    with open("key.key", "r") as key_file:
+        key = key_file.read()
+
+    user = key.split("|")[0]
+    key = key.split("|")[1]
+    db = Database()
+    password = db.get_password(user)
+    cipher_suite = Fernet(key)
+    # decrypt the password
+    plain_text = cipher_suite.decrypt(password[0])
+    print(plain_text.decode())