Hash, verify and save password

Author: parz1val37

Cryptography/password.py

@@ -0,0 +1,41 @@
+from zxcvbn import zxcvbn
+from getpass import getpass
+import bcrypt
+
+def password_strength(password):
+  result = zxcvbn(password)
+  score = result['score']  # 'Score' - (0 to 4)
+
+  if score==3:
+    response = "Strong enough passsword: score of 3"
+  elif score == 4:
+    response = "Very strong password: score of 4"
+  else:
+    feedback = result.get('feedback')
+    warning = feedback.get('warning')
+    suggestions = feedback.get('suggestions')
+    response = f"Weak password: score of {score}\nWarning: {warning}\nSuggestions: {suggestions[0]}"
+  return response
+
+def hash_password(password):
+  salt = bcrypt.gensalt()
+  hashed = bcrypt.hashpw(password.encode(), salt)
+  return hashed
+
+def verify_password(password_attempt, hashed):
+  if bcrypt.checkpw(password_attempt.encode(), hashed):
+    return "Password is correct. Access granted!"
+  return "Incorrect password. Access denied!"
+
+if __name__ == "__main__":
+  while True:
+    password1 = getpass("Enter a password to check strength: ")
+    print(password_strength(password1))
+    if password_strength(password1).startswith("Weak"):
+      print("Choose a stronger password.")
+    else:
+      break
+  hashed_password = hash_password(password1)
+  print("Hashed password: ", hashed_password)
+  attempt = getpass("Re-enter the password to verify: ")
+  print(verify_password(attempt, hashed_password))