Nitrokey 3

What Nitrokey 3 is

Nitrokey 3 is a physical security key for two-factor and passwordless authentication, cryptographic keys, and password storage. Authentication uses a PIN and a touch of the device’s physical button. FIDO2 and U2F work over USB and NFC; FIDO2 use cases include passwordless login and SSH login. For cryptographic tasks, OpenPGP Card and S/MIME store private keys for asymmetric cryptography and email encryption, while PIV supports business-focused smartcard use. These functions are listed with secure element support. The SE050M secure element is Common Criteria EAL 6+ certified up to the OS level. Password Safe holds up to 50 entries with login, password, comment, and OTP fields. The device stores cryptographic keys and certificates, not ordinary data. Nitrokey says its hardware and software are open source. The key works with current browsers and is managed through Nitrokey App 2 or nitropy, not Nitrokey App 1. Supported systems include Windows, Linux, macOS, BSD, Android, and iOS, with some mobile support noted in the FAQ. Nitrokey offers free email support in German, English, and French. Listed models start at €€54, paid once for the Nitrokey 3A Mini.