Reading Data by barcode scanner before decoding any Symbiology

Question

Hi Everybody

I want to devlop an application that will use barcode scanner to identify exam script that script will be identified only by the application.
Scanners will not able to read data without the application. The data will not be readable with any scanner except using the application.
Whether POS for .NET will be helpful or not.

Anybody is there to help me with any suggestions.

Answer 1

you would need to encrypt the encoded data and use encryption key in your applicaiton if you dont want anyone reading it without the application.

Answer 2

Hi,

Yes, Pos .Net will help you in that it will allow you to read barcodes and not be tied to a particular scanner type/connection method etc.

It will not help with the issue of stopping other applications from reading the data, to do that you need to encrypt the data before it is turned into a barcode (as suggestyed by Woodchux). If you encrypt the data, other applications will still be able to scan the barcode but the content of it won't mean anything to them.

.Net does have it's own API's for performing encryption and you can probably use one or more of those, but you need to be a little bit careful of which encryption mechanism you select as some will likely output characters/bytes that cannot be represented in a barcode... the exact details will depend on both the encryption algorithm and the barcode symbology used.