NFC Chips
lootgod
2024-02-16
NFC - CHIPS
NTAG 213/215/216
- Standard NFC (No Security Features)
- Lowest Price Point
- Great for Hobbists
NTAG 424
- Secure NFC Chip (Has Security Features)
- Better Formfactor
- chip has software the use cryptography to generate a unique has string with every tap
- Idempotent
- Tap Count + PubKey => Hash
- Scan Count + Hash sent to URL => POST request to verify hash
- Offline Taps?
- Form Factors -- Buttons -- Coins (Rigid) -- Coins (Flex) -- Tiny-Square-Chips -- ClearPlastic + Fabric
ARX
- Secure NFC
- has security features
- chip uses a smart contract verify it's authenticity
- ID Associated with Chip and Token ID
- Physically-Backed-Token (PBT)
- $500 MSRP
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