HSM Features# Nitrokey 3 Nitrokey Passkey Nitrokey FIDO2 `硝基 U2F<https://docs.nitrokey.com/nitrokeys/u2f/index.html>`_ `Nitrokey HSM 2<https://docs.nitrokey.com/nitrokeys/hsm/index.html>`_ Nitrokey Pro 2 `Nitrokey Start<https://docs.nitrokey.com/nitrokeys/start/index.html>`_ `Nitrokey Storage 2<https://docs.nitrokey.com/nitrokeys/storage/index.html>`_ ⨯ ⨯ ⨯ ⨯ ✓ ⨯ ⨯ ⨯ SMIME Smart GPA DNSSEC (仅限 Linux) 硬盘加密 Automatic Screen Lock (Linux only) Import Keys Certs Stunnel (仅限 Linux) Certificate Authority Ipsec(仅限 Linux) N-of-m计划 Pkcs11-URL Apache 2 TLS