Quantum key distribution (QKD) is an exciting application of quantum technologies that has exploded in the past decade. QKD is used to share encryption keys across an established optical link or network. QKD can be used to generate a secure, shared secret key between two users. This key is then used in an algorithm to encrypt message traffic. The big advantage QKD offers is that any attempt to read the information stored in the photons would destroy the message and be immediately detected. Quantum cryptography is fundamentally viable today in the laboratory and used in some high-end security applications, like banking and stock trading, that can rely on dedicated short distance physical fibers.
White House released the National Space Policy, declaring that we must maintain “unfettered access to, and freedom to operate in, space” as a vital National interest. This policy commits the United States to following six guiding principles. This post captured relevant parts of this strategy in a way that can help inform your strategy.