Description
CRYPTNOX is a card-style hardware wallet offering Web3 connectivity via WalletConnect and MetaMask integration through QR code communication (EIP 4527 standard). It combines NFC and contact-based communication for flexible, secure transaction signing.
Security Features
- Genuine Check with On-Card Dynamic Active Authentication — Verifies authenticity using Manufacturer Certificate Chain, preventing counterfeiting.
- BIP39 Standard Backup — Uses standard 12/24-word seed phrases for wallet recovery.
- PIN Protection — Card authentication with PIN verification.
- Biometric Support — Compatible with iOS/Android biometrics (Secure Enclave) and Windows Hello (TPM).
Digital Signatures
- ECDSA — On both Koblitz Bitcoin secp256k1 and NIST P256 R1 curves
- Schnorr (BIP 340) — On both Koblitz Bitcoin secp256k1 and NIST P256 R1 curves
Connectivity
- NFC — Tap-to-sign functionality with mobile devices
- Contact Interface — Physical connection option for compatible readers
- QR Code Communication — EIP 4527 compliant for MetaMask integration
Compatibility
- WalletConnect — Connect to any Web3 dApp via the mobile application
- MetaMask — Connect via QR code communication (EIP 4527)
- Yubikey PIV Compatibility — NIST 800-73-4 Personal Identity Verification functionality
Backup Solutions
Standard BIP39 12/24-word seed phrase recovery backup ensures you can always restore access to your assets.
Highlights
Pros
- Card-style hardware wallet with Web3 connectivity via WalletConnect and MetaMask QR (EIP 4527 compliant).
- Supports ECDSA and Schnorr signatures on both secp256k1 and NIST P256 curves for broad crypto compatibility.
- Genuine check with on-card dynamic active authentication using Manufacturer Certificate Chain prevents counterfeiting.
Cons
- No on-card display for transaction verification — relies entirely on the connected app or device.
- Requires NFC-enabled smartphone — not usable with desktop computers lacking NFC.
- Smaller ecosystem and community support compared to major brands like Ledger and Trezor.