How Are Static and Combined Data Authentication Implemented on an NFC Chip?

By RFID Journal

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Ask The ExpertsHow Are Static and Combined Data Authentication Implemented on an NFC Chip?
RFID Journal Staff asked 8 years ago
What kind of tags would I need to purchase if I wanted to test a simplified custom solution utilizing the ISO 14443 air-interface protocol standard? Could I just use any high-frequency (HF) Near Field Communication (NFC) tags?

—Name withheld

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To answer your question, I reached out to Victor Vega, the director of RFID solutions at NFC chip provider NXP Semiconductors. According to Victor, NFC Type 4 tags have built-in encryption (Crypto-1, AES or 3DES), as well as password protection for the memory. They also have memory-lock options to prohibit unintended changes. As for the type of tag you would require, he says the most popular tag in NXP’s portfolio is the nTag203 model, which does not have encryption. So you could test a simple solution using the ISO 14443 standard.

—Mark Roberti, Founder and Editor, RFID Journal

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