The AirID NFC Smart Card is a hardware-based security device designed for data encryption and digital signing. It uses post-quantum encryption technology to protect data against current and future cryptographic threats. The card communicates with smartphones and host devices via NFC (Near Field Communication), eliminating the need for traditional smart card reader hardware. When paired with the AirID SCP03 Framework, it establishes a secure communication channel between the card and the host device, providing protection against replay attacks, man-in-the-middle attacks, and side-channel attacks. Key technical characteristics: - Post-quantum encryption for data protection and signing - NFC-based wireless communication with mobile devices - SCP03 Framework for secure host-to-card communication - Data integrity assurance across the communication channel The card is compatible with Windows, macOS, Linux, iOS, and Android operating systems, enabling cross-platform deployment without the complexity of dedicated smart card reader devices. It is positioned for use in security-sensitive environments where strong cryptographic identity and data protection are required, and has been adopted by organizations including Siemens, Porsche AG, Deutsche Bahn, and Raiffeisendruckerei GmbH.