4 ms·

RFID tags are not smart cards, they basically just have a small amount of data on them which can be read off. So yes, having a bit for bit copy is exactly the s

by almost 16y ago

RFID tags are not smart cards, they basically just have a small amount of data on them which can be read off. So yes, having a bit for bit copy is exactly the same as having the original tag.

tocomment 16y ago
That doesn't seem like a smart design. It seems less secure than an old fashioned metal key.
- lisper 16y ago
  These chips aren't supposed to be used for secure applications (though no doubt some people do use them that way). They are intended to be used more like a UPC code.
  - tocomment 16y ago
    I thought that's how keycards generally work?
    - lisper 16y ago
      Some work that way, others do PKI-ish things and so are more secure.
- almost 16y ago
  Not for a key, no. But it's a great design when what you want is low cost ID tags which don't require their own power source and which essentially work like barcodes that you can scan without line of sight.