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I actually wanted to know how marvel_boy knows that consumers usually deal with EAN13 barcode instead of code128. As he or she states, EAN13 barcodes would make
by crisp 11y ago
I actually wanted to know how marvel_boy knows that consumers usually deal with EAN13 barcode instead of code128. As he or she states, EAN13 barcodes would make this kind of attack impossible so I wanted to know if this is a real everyday problem concerning most of the stores or only a minority of them.
- chiph 11y agoLook at the products you buy at the store (supermarket, Walmart, Target, etc) - the barcode is almost always EAN (now IAN)¹ There are exceptions for smaller items like packs of gum, which use UPC-E² encoding (if the manufacturer portion ends in zeros). Hundreds of thousands of products being purchased by billions of people mean they're the dominant barcode system. So far as attacks via UPC/EAN/IAN, they're not really possible as it only encodes digits, and only 13 of them. ¹ https://en.wikipedia.org/wiki/International_Article_Number_(EAN) https://en.wikipedia.org/wiki/International_Article_Number_(... ² http://www.barcodeisland.com/upce.phtml http://www.barcodeisland.com/upce.phtml