Inventory experts, tell me how to screw up the reading of a QR code?

Question

System administration

Is there any possibility during the creation of QR codes to make it readable only after entering the password?? I am engaged in inventory and decided to use QR codes, the management approved everything, but only requires security (supposedly so that only the elite know the password and can scan it). Thank you in advance!

Answer 1

No way. Anyone can read a QR code.
And to get access to information from this code (for example, identifier / login) - only the one who has access to the database by this identifier.
It is irrational to store product information in the QR code itself for the following reasons:
1. A large amount of data, and the area may be limited.
2. The code will be rigidly fixed after printing and stickers on the packaging / product and is logically linked to it.
It's easier to use only IDs without any other information inside the QR code. And everything else - to store in the database.

Answer 2

You can encrypt information in a QR code and without the correct password (encryption key) it will not be possible to decrypt it. There are many modern encryption protocols (algorithms). The QR code itself is just a way to transfer information, and what to transfer there is up to you.