Added hashing to the authentication

.gitignore

@@ -0,0 +1,2 @@
+pwdb.pkl
+__pycache__/

auth.py

@@ -1,24 +1,36 @@
 import pickle
+import os
+
+from getpass import getpass
 
 def get_credentials():
     username = input("Enter username:")
-    password = input("Enter password:")
+    password = getpass("Enter password:")
     return (username, password)
 
+def pwhash(password, salt):
+    hashsum = 0
+    for char in password:
+        hashsum += ord(char)
+    return hashsum
+
+def create_salt():
+    return os.urandom(5).hex()
+
 def authenticate(username, password, pwdb):
-    status = False
+    status = 0
     if username in pwdb:
-        if password == pwdb[username]:
-            status = True
-        else:
-            print('Wrong password!')
+        password_hash, salt = pwdb[username]
+        if pwhash(password, salt) == password_hash:
+            status = 1
     else:
         add_user(username, password, pwdb)
-
+        status = 2
     return status
 
 def add_user(username, password, pwdb):
-    pwdb[username] = password
+    salt = create_salt()
+    pwdb[username] = [pwhash(password, salt), salt]
     write_pwdb(pwdb)
 
 def read_pwdb():
@@ -39,7 +51,9 @@ def write_pwdb(pwdb):
     username, password = get_credentials()
     pwdb = read_pwdb()
     status = authenticate(username, password, pwdb)
-    if status:
+    if status == 1:
         print('Authentication succeeded:', pwdb)
+    elif status == 2:
+        print("Registered new user")
     else:
         print('Authentication failed')