mathematicians: "haha, look at this -- based on what we know about math right now, there's no way to make certain operations easily reversible."
computer nerds: "cool, we can use this to encrypt data in transit."
mathematicians: "nice. Though don't bet on it always being hard. I mean, we solve hard problems all the time, haha."
cryptocoin nerds: "In fact, we're going to bet trillions of dollars on it remaining hard forever."
@monsieuricon infosec hackers: dis gon' b gud! 🍿
@tomosaigon @rysiek if RSA is broken tomorrow, it's going to be painful, but straightforward for everyone using TLS to move to quantum-resistant protocols. All previously captured transactions will be suspect for sure, but very few entities in the world would be in a position to decrypt them.
Blockchains, on the other hand, depend entirely on the chosen PKI algorithm to remain unbroken, otherwise any transaction on the chain can be faked.
@monsieuricon I agree, a blockchain depends on certain algorithms today to decide if you can spend a utxo. By following best practices (single use addresses that are hashed), if ecdsa is suspected by majority hashrate of being compromised, I believe it only takes s soft fork to change to a different algorithm thus solving the problem. It'll probably happen anyways eventually (upgrading), bitcoin software is a living thing. A bunch of Satoshi's coins will probably still be up for grabs. @rysiek
@monsieuricon (operative term here being "right now")
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