Quantum cryptography is the only known secret key sharing technique that can offer unconditional security. It is also compatible with the current state of technology. That is why it draws a lot of attention and has become the most mature direction among quantum technologies. Quantum key distribution (QKD) is now an active area of research that has made its way from theory to advanced technology for the last few decades.

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There are two dedicated laboratories in our centre that deal with QKD: conventional fiber-based quantum cryptography and free-space quantum cryptography.