Specifically, where can I find tags, not cards?
To answer your question, I reached out to Victor Vega, NXP Semiconductors‘ director of RFID NFC solutions. Here’s his response:
“There are a whole bunch of offerings, ranging from the new lineup of price-sensitive NFC tag ICs (called the NTAG line), which do not have built-in encryption, but instead have a 128-bit ‘originality signature’ which comprises the unique ID and a private key using elliptical curve cryptography. These ICs may be found in the following section (specifically the NTAG 21x series): nxp-rfid.com/products/ntag. The data sheets are also on this page. Migrating up, they can go from lightweight encryption (lower-cost) to very high-security (for example, 3 DES or SmartMX, like what is used for access control or financial transactions). These product families may be found here.”
I hope that helps.
—Mark Roberti, Founder and Editor, RFID Journal
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