Thread

1. KingMachiavelli · 1789617597 · focus · HN ↗

   All of this is nearly pointless unless the photo itself is in the barcode and also signed. You only need a leak of a few hundred real IDs to cover all of the identifiable characteristics (hair, eye, skin color, approx height and weight). Leak a few hundred thousand a year and now you can’t even flag leaked IDs without some false positives.

   A fake photo plus a valid barcode will pass any current check right? Unless you still do a secondary proprietary photo lookup that I don’t think exists.

   1. Ryan5453 · 1789631411 · focus · HN ↗

      You can only store ~1100 bytes in a PDF417 barcode so storing the image itself it unfeasible. And storing a signature of an image you don't have access to is useless. Passports are able to do this because the smartcard chips they use can store at least 32 KB of data (usually more).

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