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Quantum cryptography or, more precisely, quantum key distribution (QKD) is a communication technique relying on the exchange of single quantum states, such as single photons. The laws of quantum physics guarantee an information theoretically secure (ITS) way to generate a secret key between two parties and hence offer an absolutely secret line of communication.

To convert the raw quantum measurements into useful cryptographic keys, AIT develops stand-alone post-processing software, focusing on efficiency and parallelization for maximal key throughput. Since the beginning of our endeavours in the field of quantum key distribution, we have achieved international acclaim for our expertise in:

To facilitate the adaptation of QKD into existing telecommunication infrastructure, certification and standardization of the technology is vital. AIT is a full member of the QKD ISG group at ETSI, whose task it is to define standards for QKD systems and QKD network implementations.