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Joined 10 months ago
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Cake day: July 22nd, 2023

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  • They’re one way functions. Encryption requires decryption, so you cannot lose information.

    Hash functions are meant to lose information. They cannot be reversed. What they’re good at is verification; do you have the right password? Do you have a proof that this is your message and not someone else’s?

    We already use hash functions where they make sense, but the parent is not entirely right; not all hashes and signatures are equals. Some are very quantum susceptible. Those will likely be broken real soon (think years, not decades). Some are quantum resistant.


  • There’d just be new cryptocurrencies. There are crypto algorithms that are already quantum resistant. Monero is a great example.

    You seem to be under the impression that crypto somewhat relies on current technology to exist. It’s a set of heuristics and algorithms, not a single implementation. And those can evolve for new use cases or technologies.

    What you said is akin to “if something like this could make databases obsolete”.