diff --git a/HasswordManager.cabal b/HasswordManager.cabal
index afe4c68..e132257 100644
--- a/HasswordManager.cabal
+++ b/HasswordManager.cabal
@@ -41,6 +41,7 @@ library
     , ansi-terminal
     , base >=4.7 && <5
     , bytestring
+    , cipher-aes
     , hashable
     , sqlite-simple
     , text
@@ -62,6 +63,7 @@ executable HasswordManager-exe
     , ansi-terminal
     , base >=4.7 && <5
     , bytestring
+    , cipher-aes
     , hashable
     , sqlite-simple
     , text
@@ -84,6 +86,7 @@ test-suite HasswordManager-test
     , ansi-terminal
     , base >=4.7 && <5
     , bytestring
+    , cipher-aes
     , hashable
     , sqlite-simple
     , text
diff --git a/app/Main.hs b/app/Main.hs
index 163c72d..8232de4 100644
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -1,9 +1,10 @@
 {-# LANGUAGE OverloadedStrings #-}
 module Main (main) where
 
-import Data.ByteString.UTF8 (fromString)
+import Data.ByteString.UTF8 (fromString, toString)
 import Database.SQLite.Simple
 import System.Hclip
+import qualified Data.Text as T
 
 import qualified UserInterface as Ui
 import qualified Database as Db
@@ -13,18 +14,19 @@ import qualified Utils as Ut
 main :: IO ()
 main = do
   conn <- Db.init_connection
-  Ut.clear_screen  
+
+  Ut.clear_screen
   putStrLn "Welcome to Hassword Manager!!!"
-  welcome_screen conn
+  
+  setup_application conn
   mpass <- open_hassword_book conn
-  putStrLn mpass
-  setClipboard mpass
-  -- application_loop conn
+  application_loop conn mpass
 
   Db.close_connection conn
 
-welcome_screen :: Connection -> IO ()
-welcome_screen conn = do
+
+setup_application :: Connection -> IO ()
+setup_application conn = do
   first <- Db.is_it_first_app_usage conn
   if first
     then do
@@ -66,8 +68,8 @@ open_hassword_book :: Connection -> IO (String)
 open_hassword_book conn = do
   putStrLn "Please Enter your MASTER PASSWORD:"
   mpass <- Ut.get_password
-  res <- Db.check_if_mpass_valid conn (Cr.hash' $ fromString mpass)
-  if res
+  mpass_valid <- Db.check_if_mpass_valid conn (Cr.hash' $ fromString mpass)
+  if mpass_valid
     then
       return mpass
     else do
@@ -76,7 +78,74 @@ open_hassword_book conn = do
       Ut.reset_color
       open_hassword_book conn
 
-application_loop :: Connection -> IO ()
-application_loop conn = do
-  putStrLn "What would you like to do?"
-  application_loop conn
+get_action_choice :: IO (Ut.ActionChoice)
+get_action_choice = do
+  putStrLn "\nWhat would you like to do?"
+  putStrLn "1. List all entries"
+  putStrLn "2. Copy entry password"
+  putStrLn "3. Add a new entry"
+  putStrLn "4. Delete an entry"
+  putStrLn "5. Update an entry"
+  putStrLn "6. Change Master Password"
+  putStrLn "7. Close the application"
+  choice <- getLine
+  case choice of
+    "1" -> return Ut.ListAllEntries
+    "2" -> return Ut.CopyEntryPassword
+    "3" -> return Ut.AddNewEntry
+    "4" -> return Ut.DeleteEntry
+    "5" -> return Ut.UpdateEntry
+    "6" -> return Ut.ChangeMasterPassword
+    "7" -> return Ut.Exit
+    _ -> return Ut.InvalidAction
+
+application_loop :: Connection -> String -> IO ()
+application_loop conn mpass = do
+  choice <- get_action_choice
+  case choice of
+    Ut.ListAllEntries -> do
+      list_all_entries conn
+      application_loop conn mpass
+    Ut.CopyEntryPassword -> do
+      return ()
+      application_loop conn mpass
+    Ut.AddNewEntry -> do
+      add_entry conn mpass
+      application_loop conn mpass
+    Ut.DeleteEntry -> do
+      return ()
+      application_loop conn mpass
+    Ut.UpdateEntry -> do
+      return ()
+      application_loop conn mpass
+    Ut.ChangeMasterPassword -> do
+      return ()
+      application_loop conn mpass
+    Ut.InvalidAction -> do
+      putStrLn "Invalid choice!!!"
+      application_loop conn mpass
+    Ut.Exit -> do
+      return ()
+
+list_all_entries :: Connection -> IO ()
+list_all_entries conn = do
+  entries <- Db.get_all_entries conn
+  Ui.print_entries entries
+
+add_entry :: Connection -> String -> IO ()
+add_entry conn mpass = do
+  putStrLn "Please Enter the service name:"
+  service <- getLine
+  putStrLn "Please Enter the login:"
+  login <- getLine
+  entry_exists <- Db.entry_already_exists conn (T.pack service) (T.pack login)
+  if entry_exists
+    then do
+      Ut.set_red
+      putStrLn "Entry already exists!!!"
+      Ut.reset_color
+      return ()
+    else do
+      putStrLn "Please Enter the password:"
+      password <- Ut.get_password
+      Db.add_entry conn (T.pack service) (T.pack login) (T.pack (toString (Cr.encrypt' (fromString mpass) (fromString password))))
diff --git a/package.yaml b/package.yaml
index 78b1b5e..21230af 100644
--- a/package.yaml
+++ b/package.yaml
@@ -27,6 +27,7 @@ dependencies:
 - utf8-string
 - ansi-terminal
 - Hclip
+- cipher-aes
 - base >= 4.7 && < 5
 
 ghc-options:
diff --git a/src/Crypto.hs b/src/Crypto.hs
index cc1356c..51df6a7 100644
--- a/src/Crypto.hs
+++ b/src/Crypto.hs
@@ -1,15 +1,28 @@
 {-# LANGUAGE OverloadedStrings #-}
 module Crypto (
-  -- encode,
-  -- decode,
+  encrypt',
+  decrypt',
   hash'
 ) where
 
 import Data.ByteString (ByteString)
 import Data.Hashable
+import Crypto.Cipher.AES
 
 pepper :: ByteString
 pepper = "pepper"
 
 hash' :: ByteString -> Int
 hash' = hashWithSalt 0 . mappend pepper
+
+encrypt' :: ByteString -> ByteString -> ByteString
+encrypt' key plain_text = plain_text
+
+decrypt' :: ByteString -> ByteString -> ByteString
+decrypt' key cypher_text = cypher_text
+
+-- encrypt' :: ByteString -> ByteString -> ByteString
+-- encrypt' = encryptECB . initAES
+
+-- decrypt' :: ByteString -> ByteString -> ByteString
+-- decrypt' = decryptECB . initAES
diff --git a/src/Database.hs b/src/Database.hs
index c7b5b1d..a300917 100644
--- a/src/Database.hs
+++ b/src/Database.hs
@@ -1,29 +1,22 @@
 {-# LANGUAGE OverloadedStrings #-}
-module Database (
-  Entry(..),
-  init_connection,
-  close_connection,
-  check_if_mpass_valid,
-  insert_new_mpass,
-  is_it_first_app_usage
-) where
+module Database where
 
 import           Control.Applicative
 import qualified Data.Text as T
 import           Database.SQLite.Simple
 
-data Entry = Entry { entryId :: Int, entryLogin :: T.Text, entryPassword :: T.Text } deriving (Show)
+data Entry = Entry { entryId :: Int, entryService :: T.Text, entryLogin :: T.Text, entryPassword :: T.Text } deriving (Show)
 data Mpass = Mpass { mpassId :: Int, hash :: Int } deriving (Show)
 
 
 instance FromRow Entry where
-  fromRow = Entry <$> field <*> field <*> field
+  fromRow = Entry <$> field <*> field <*> field <*> field
 
 instance FromRow Mpass where
   fromRow = Mpass <$> field <*> field
 
 instance ToRow Entry where
-  toRow (Entry id_ login password) = toRow (id_, login, password)
+  toRow (Entry id_ service login password) = toRow (id_, service, login, password)
 
 instance ToRow Mpass where
   toRow (Mpass id_ hash) = toRow (id_, hash)
@@ -41,9 +34,9 @@ close_connection conn = close conn
 
 create_db :: Connection -> IO ()
 create_db conn = do
-  execute_ conn "CREATE TABLE IF NOT EXISTS hasswords (entryId INTEGER PRIMARY KEY, entryLogin TEXT, entryPassword TEXT)"
-  execute_ conn "CREATE TABLE IF NOT EXISTS mpass (mpassId INTEGER PRIMARY KEY, hash INTEGER)"
-  -- execute conn "INSERT INTO hassword (entryId, entryLogin, entryPassword) VALUES (?,?,?)" (Entry 1 "admin" "admin")
+  execute_ conn "CREATE TABLE IF NOT EXISTS entries (entryId INTEGER PRIMARY KEY AUTOINCREMENT, entryService TEXT, entryLogin TEXT, entryPassword TEXT)"
+  execute_ conn "CREATE TABLE IF NOT EXISTS mpass (mpassId INTEGER PRIMARY KEY AUTOINCREMENT, hash INTEGER)"
+  -- execute conn "INSERT INTO entries (entryId, entryLogin, entryPassword) VALUES (?,?,?)" (Entry 1 "admin" "admin")
   -- rowId <- lastInsertRowId conn
   -- r <- query_ conn "SELECT * from hassword" :: IO [Entry]
   -- mapM_ print r
@@ -56,9 +49,36 @@ is_it_first_app_usage conn = do
 insert_new_mpass :: Connection -> Int -> IO ()
 insert_new_mpass conn hash = do
   execute_ conn "DELETE FROM mpass"
-  execute conn "INSERT INTO mpass (mpassId, hash) VALUES (?,?)" (Mpass 1 hash)
+  execute conn "INSERT INTO mpass (hash) VALUES (?)" (Only hash)
 
 check_if_mpass_valid :: Connection -> Int -> IO Bool
 check_if_mpass_valid conn hash = do
   r <- query conn "SELECT * from mpass WHERE hash = ?" (Only hash) :: IO [Mpass]
   return $ length r == 1
+
+add_entry :: Connection -> T.Text -> T.Text -> T.Text -> IO ()
+add_entry conn service login password = do
+  execute conn "INSERT INTO entries (entryService, entryLogin, entryPassword) VALUES (?,?,?)" (service, login, password)
+
+update_entry :: Connection -> Int -> T.Text -> IO ()
+update_entry conn id new_password = do
+  execute conn "UPDATE entries SET entryPassword = ? WHERE entryId = ?" (new_password, id)
+
+get_entry :: Connection -> Int -> IO (Maybe Entry)
+get_entry conn id = do
+  r <- query conn "SELECT * from entries WHERE entryId = ?" (Only id) :: IO [Entry]
+  return $ case r of
+    [] -> Nothing
+    [entry] -> Just entry
+
+get_all_entries :: Connection -> IO [Entry]
+get_all_entries conn = query_ conn "SELECT * from entries"
+
+delete_entry :: Connection -> Int -> IO ()
+delete_entry conn id = do
+  execute conn "DELETE FROM entries WHERE entryId = ?" (Only id)
+
+entry_already_exists :: Connection -> T.Text -> T.Text -> IO Bool
+entry_already_exists conn service login = do
+  r <- query conn "SELECT * from entries WHERE entryService = ? AND entryLogin = ?" (service, login) :: IO [Entry]
+  return $ length r == 1
diff --git a/src/UserInterface.hs b/src/UserInterface.hs
index 54c39da..a93f9b9 100644
--- a/src/UserInterface.hs
+++ b/src/UserInterface.hs
@@ -1,6 +1,18 @@
 module UserInterface
-    ( someFunc
+    ( print_entries
     ) where
 
-someFunc :: IO ()
-someFunc = putStrLn "someFunc"
+import qualified Database as Db
+
+print_entries :: [Db.Entry] -> IO ()
+print_entries entries = do
+  putStrLn "Entries:"
+  mapM_ print_entry entries
+
+print_entry :: Db.Entry -> IO ()
+print_entry entry = do
+  putStrLn $ "ID: " ++ show (Db.entryId entry)
+  putStrLn $ "Service: " ++ show (Db.entryService entry)
+  putStrLn $ "Login: " ++ show (Db.entryLogin entry)
+  putStrLn $ "Password: *****"
+  putStrLn ""
diff --git a/src/Utils.hs b/src/Utils.hs
index fcf476d..225137a 100644
--- a/src/Utils.hs
+++ b/src/Utils.hs
@@ -6,6 +6,8 @@ import Control.Exception
 
 data MasterPasswordValidationCases = Empty | TooShort | DoNotMatch | NotValid | Valid String deriving (Show)
 
+data ActionChoice = ListAllEntries | CopyEntryPassword | AddNewEntry | DeleteEntry | UpdateEntry | ChangeMasterPassword | Exit | InvalidAction deriving (Show)
+
 validate_password :: String -> String -> MasterPasswordValidationCases
 validate_password p1 p2
   | p1 /= p2 = DoNotMatch