Yubico FIDO Security Key NFC
A cut-down Yubikey, the Security Key series provides a classic form with wide function.
Yubico FIDO Security Key NFC
FIDO2 Certification
Has been certified by the FIDO Alliance as conforming to FIDO2 standards
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Resident Cryptographic Keys
Supports U2F/WebAuthn discoverable/resident authentication keys
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Resident ECDSA keys
Supports ECDSA discoverable keys
Resident ED25519 keys
Supports ED25519 discoverable keys
The Yubico FIDO2 Security Key is a reduced version of the Yubikey that supports a very small number of features, at a reduced cost.
U2F SSH
The FIDO2 key supports both ED25519 and ECDSA stored keys. Generating them and using them is identical to the Yubikey 5.