DEVELOPERS & CISO HUB NXP SMARTMX3 P71D600 (CC EAL6+ HIGH): Non-Exportable FIDO2.1 (BE=0) • Ed25519 OpenSSH • Zero Legacy Keyboard-OTP Leak Surface
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VERIFIED HARDWARE KEY 100% Compatible with OpenAI Daybreak Blue (Physical Non-Exportable FIDO2.1 Key • BE=0), 𝕏 Passkeys & 𝕏 Money, GitHub, Cloudflare, AWS & OpenSSH (ed25519-sk)
WARDENCARD.COM/DEVELOPERS • CRYPTOGRAPHIC ARCHITECTURE & ECOSYSTEM HUB

Hardware-Bound FIDO2.1 (BE=0) & ed25519-sk Built for Frontier Engineers.

Engineered around the Common Criteria EAL6+ High certified NXP SmartMX3 P71D600 (JCOP 4.5) secure element. WardenCard delivers strict hardware-bound attestation (BE=0, BS=0, UP=1, UV=1), 250 discoverable resident keys, native Ed25519 OpenSSH + Git signing, and zero legacy keyboard-OTP credential leaks—in a razor-thin 0.80 mm ISO CR80 slate that ships as a 2-Card Primary + Vault pack.

Request Security Team Evaluation Kit → View OpenSSH & Git CLI Recipes ↓ Live Browser WebAuthn Inspector ↗
LOCKED REV 2.5 HARDWARE TOKEN (`WARDEN 01 // PRIMARY`) NXP P71D600 • EAL6+
WardenCard Locked Rev 2.5 Hardware Architecture
BE=0 / BS=0
Non-Exportable
ES256 + Ed25519
COSE -7 & -8
250 RK Slots
No 8/RP Cap

1. Hardware Silicon & Cryptographic Attestation Spec Sheet

Complete silicon, APDU transport, and WebAuthn authData flag specifications for Relying Party (RP) & Zero-Trust policy enforcement.

SECURE ELEMENT & TRANSPORT ARCHITECTURE

NXP SmartMX3 P71D600 (JCOP 4.5 OS)

Common Criteria Cert EAL6+ High (BSI-DSZ-CC-1149-V4-2025 & NSCIB-CC-2300127-02)
Protocols Supported FIDO2.1 (CTAP2.1) • WebAuthn Level 3 • CTAP1/U2F • NDEF Type 4
RF & APDU Framing ISO/IEC 14443 Type A (13.56 MHz, 848 kbps) • Extended APDU (up to 2048B)
COSE Algorithms ES256 (alg: -7, P-256) • EdDSA (alg: -8, Ed25519) • RS256 (alg: -257)
Resident Key Storage Up to 250 Discoverable Credentials (rk=true) • Zero per-RP cap
Desktop PC/SC Transport WardenPad™ 76×76×6.5mm USB-C/A 13.56 MHz PC/SC CCID (winscard / CryptoTokenKit)
Enterprise Door Option Optional isolated MIFARE DESFire EV2 4K/8K applet (B2B 25-Pack)
WEBAUTHN AUTHDATA BIT FLAGS (`0x5D`)

Why Relying Parties Trust WardenCard

High-assurance policies—including OpenAI Daybreak Blue, banking vaults, and federal/enterprise Zero-Trust—inspect the WebAuthn authData flags byte to reject cloud-synced software passkeys (BE=1):

UP = 1 (Bit 0)
User Present Verified: Inductively powered only during a physical 13.56 MHz tap; impossible to trigger remotely when resting in your wallet.
UV = 1 (Bit 2)
User Verified Inside SE: Hardware FIDO2 PIN (4–63 chars) verified on-chip by the NXP P71 secure element with hardware retry lockout after 8 failed attempts.
BE = 0 (Bit 3)
Backup Eligible = 0 (Strictly Non-Exportable): Private key is generated inside the EAL6+ hardware RNG and can NEVER be exported or synced. Qualifies 100% for OpenAI Daybreak Blue & strict enterprise FIDO2 policies.
BS = 0 (Bit 4)
Backup State = 0: Confirms to the Relying Party verifier that the credential has never been backed up to iCloud Keychain, Google Password Manager, or a software vault.
AT = 1 (Bit 6)
Attested Credential Data Included: Exposes hardware AAGUID and batch X.509 attestation certificate chained to FIDO MDS / Microsoft Entra ID root store.
🛡️ CISO & DEVSECOPS ARCHITECTURE ADVANTAGE • ZERO "CCCCCC..." SLACK / TERMINAL LEAK HAZARD 100% PURE FIDO2.1 / CTAP2 SMART CARD OUT OF THE BOX

Why We Eliminated Legacy USB Keyboard-OTP Emulation (`yubico-otp`)

Traditional USB YubiKeys ship from the factory with Slot-1 Yubico OTP enabled over USB HID Keyboard emulation—meaning every time an engineer accidentally brushes the gold capacitive button while the dongle is plugged into their laptop, it types a 44-character cccccc... static identity prefix + OTP string + Enter straight into Slack, Zoom chat, GitHub PRs, or a live production terminal. In fact, OpenAI had to custom-order Yubico keys with legacy OTP factory-disabled for their internal security deployment to stop accidental credential leaks. WardenCard has zero USB HID keyboard emulation and zero capacitive touch buttons that misfire in your pocket—it speaks 100% pure cryptographic FIDO2.1 / CTAP2.1 over ISO 14443-A contactless NFC.

2. "Works with WardenCard" Verified Ecosystem Catalog

Filter by category or search any Relying Party, SSH workflow, or Zero-Trust identity provider.

3. Copy-Paste CLI Recipes for Engineers

Hardware-resident Ed25519 OpenSSH keys, cryptographic Git commit signing, and libfido2 diagnostics via WardenPad™.

RECIPE 01 // OPENSSH 8.2+ sk-ssh-ed25519@openssh.com

Hardware-Resident SSH Keys

Generate an Ed25519 SSH key that lives inside WARDEN 01's EAL6+ secure element—never on your laptop SSD. Pull the key stub onto any new workstation with ssh-keygen -K: 

# 1. Generate hardware-resident Ed25519 SSH key on WARDEN 01
ssh-keygen -t ed25519-sk -O resident -O verify-required \
  -O application=ssh:prod-bastion -C "warden-01-primary"

# 2. Repeat immediately on WARDEN 02 (Vault Backup)
ssh-keygen -t ed25519-sk -O resident -O verify-required \
  -O application=ssh:prod-bastion -C "warden-02-vault"

# 3. On any new Mac/Linux machine, pull key stub from card:
ssh-keygen -K
RECIPE 02 // GIT 2.34+ Verified GitHub Badges

Hardware-Backed Git Commit Signing

Sign every Git commit and release tag using your WardenCard's ed25519-sk hardware key—preventing autonomous AI coding agents from pushing unauthorized commits: 

# Configure Git to sign commits & tags with your WardenCard SSH key
git config --global gpg.format ssh
git config --global user.signingkey ~/.ssh/id_ed25519_sk.pub
git config --global commit.gpgsign true
git config --global tag.gpgSign true

# Test signed commit (tap WARDEN 01 on WardenPad coaster):
git commit -S -m "feat: signed with WardenCard EAL6+ ed25519-sk"
RECIPE 03 // LIBFIDO2 PC/SC CCID Diagnostics

Inspect Attestation & Resident Keys

Use standard open-source libfido2 (`fido2-token`) with our 76mm WardenPad™ Desktop NFC Coaster Pad to inspect firmware, set your PIN, or audit resident passkeys: 

# 1. List connected FIDO2 / PC-SC authenticators
fido2-token -L

# 2. Inspect NXP JCOP4 P71 CTAP2.1 capabilities & maxmsgsize
fido2-token -I pcsc://slot0

# 3. List all discoverable resident Relying Parties (RPs) on card
fido2-token -L -r pcsc://slot0
CISO, DEVSECOPS & AI LAB EVALUATION PROGRAM

Request a Security Team Evaluation Kit (Batch 01 Priority)

Evaluating WardenCard for your engineering organization, OpenAI Daybreak Blue deployment, or Microsoft Entra ID / Okta passwordless rollout? Reserve a priority Batch 01 Security Team Evaluation Kit or lock in our $399 B2B 25-Pack (`$15.96/seat` with 5 desktop readers included).

WHAT'S IN THE SECURITY TEAM EVALUATION KIT:
  • 2× Production 0.80mm WardenCards (Rev 2.5): WARDEN 01 // PRIMARY + WARDEN 02 // VAULT
  • 1× WardenPad™ Desktop NFC Coaster: 76×76×6.5mm Ultra-Flat Matte-Black 13.56 MHz Extended-APDU PC/SC CCID Pad (USB-C / USB-A)
  • 2× Foil-Lined Storage Sleeves + 1× WardenShield™ Active Blocking Card
  • Attestation Root CA Bundle & AAGUID Metadata JSON for Microsoft Entra ID / Okta / FIDO MDS policy whitelisting
🇺🇸 Dispatched from Florida, USA • Direct Engineering Slack/Discord Channel Included