netrange is a CLI utility that is able to fetch lists of IP ranges used by common cloud services, filter those lists by attributes provided by the cloud providers, and then optionally minimize the set of resulting ranges.
I want to apologize for filing an issue here. It's not appropriate, but I don't know any other way to get in touch. The https://crates.io/crates/rust-crypto crate continues to have high prominence in Google search results for queries like "rust crypto". I would love to find a way to officially deprecate that crate and steer programmers towards whatever alternatives you'd approve of. If you'd like any help putting together a PR for this, I'd be happy to take care of it. Or if you'd prefer not to deprecate the crate, of course that would be understandable too. Hoping to hear back either way if you have time.