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Can someone else who’s more of an expert or well read in the area explain the following to me? I thought quantum computing requires very low temperatures and hi
by AnonC 1y ago
Can someone else who’s more of an expert or well read in the area explain the following to me? I thought quantum computing requires very low temperatures and highly controlled environments, and that’s why it’s not commonly available (cost is, of course, another huge barrier). In this case, does the satellite conform to those requirements or is it something else? Do both the sending and receiving systems conform to those physical requirements? Can this system be deployed almost anywhere on earth at a low cost?
Other than money, what are the non-negotiable requirements for such a system to be deployed and to work as expected? What is the exact breakthrough here?
- bawolff 1y agoThis is about quantum messaging not quantum computers. They don't have the same requirements. However its pretty useless. QKD, does basically the same thing as the diffie-helman protocol, except with less math assumptions. Like diffie-helman it protects against passive evesdroppers but not active man in the middle. Any real system is going to have to use traditional crypto for active MITM protection, and if you are already using traditional crypto, might as well use it for the whole thing. In essence this is a cool science experiment but doesn't really offer meaningful improvements over traditional crypto methods.