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Nitrokey is a German security-hardware company whose products include authentication tokens, encrypted storage, and related open-source-oriented devices. Capabilities vary materially by model; some keys focus on FIDO authentication, while others expose smart-card or cryptographic functions.

It is a possible European hardware lead in Swedish and EU privacy suppliers. A procurement decision should verify the exact model, firmware and software support, manufacturing origin, certification, recovery workflow, authorized supply, and customer-support allocation.