Indian military ready to put long-range quantum key distribution on the line

India’s military has celebrated the nation’s Independence Day by announcing it will adopt locally developed quantum key distribution (QKD) technology that can operate across distances of 150km.

QKD is a technology to securely distribute encryption keys – items that could make communications an open book to an adversary. QKD makes interception of encryption keys vastly difficult by transmitting each bit of a key using a single photon. As photons are quantum particles, observing them changes their state. And that change can be detected – a signal that indicates a key may have been compromised and is therefore not worth using.

The tech therefore has the potential to improve security of military comms in peacetime or during conflicts.

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Source: The Register