I recently read a page describing what is called an "RSA UFO", or "generalized RSA moduli of unknown complete factorization". Though they practically spell out the properties and generation algorithm in the posted link I find myself still confused.

So what is an RSA UFO and what are its cryptographic properties in layman's terms?

  • That article (warning outdated TLS certificate, doesn't that instill trust?) is in laymans terms. I can summarize it as: RSA that you can factor, where the factorization seems to be used as a proof-of-work for a coin miner. Does that help? If not: please explain what you do not understand. – Maarten Bodewes Dec 3 at 1:27

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