CRYPTNOX

Web3 Connectivity:

Use the mobile application to connect to any Web3 dapp via Wallet Connect

Matamask Connectivity:

Connect your card to your Metamask browser add-on via QR code communication
(EIP 4527)

NFC and Contact:

Genuine check with On-Card Dynamic Active Authentication with Manufacturer Certificate Chain.

Backup Solutions:
Standard 12/24 Words (BIP 39)
Digital Signatures:

ECDSA on “Koblitz Bitcoin” 256 K1 and  NIST P256 R1 curves
BIP 340 (Schnorr) on “Koblitz Bitcoin” 256 K1 and NIST P256 R1 curves
Card Authentication with:
IOS and Android with Biometrics (using the Secure Enclave)
PIN
Windows Hello Biometrics (TPM)
Yubikey Products with Personal Identity Verification Functionality (NIST 800-73-4)