Hello everyone,
I want to create QR code in hotspot server by make voucher user name and password, When the users can login by 2 ways (step 1 can login by user name and password by created in user manger, Step 2 the users can login by using QR code by create the voucher so in this step the user can download app in mobile like "ok scan" to scanner the card after that login automatic without write any think), I searched before this post and i found this:
https://www.kangndo.com/2015/01/01/user ... uto-login/
How i check this method in website don't have any attack in code of java or anything else?
Any help please?
THANKS