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Consider what the bombe could do and how prized a secret it was. There is no non-existence proof of a quantum computer with an analogous role today.
by odyssey7 3y ago
Consider what the bombe could do and how prized a secret it was. There is no non-existence proof of a quantum computer with an analogous role today.
- pclmulqdq 3y agoBitcoin and Ethereum are a proof of non-existence of useful quantum computing (in terms of encryption breaking).
- mportela 3y agocan you elaborate on this?
- odyssey7 3y agoA 51% attack would cause enough pandemonium. A state actor could do that using technology the public already knows about.
- pclmulqdq 3y agoA 51% attack doesn't help anyone. Cracking the discrete log problem gets you a lot of money right away.
- deleted 3y ago[deleted]
- NooneAtAll3 3y agoiirc, top 2 computing pools for bitcoin are already more than 51% when combined
- dflock 3y agoThe Bombe was used to break the encryption and read German army and navy cypher traffic. It was kept secret at all costs, up to and including sometimes _not using its results_ for fear of tipping off the Germans, even if this resulted in loss of life and shipping in the Atlantic. Anyone far enough ahead to have a functional quantum computer powerful enough to mine all the Bitcoin, would instead keep it secret and use it to read foreign government encryption etc... Emptying the blockchain into your bank account doesn't move the needle for anyone at that level.
- pclmulqdq 3y ago"Mine all the bitcoin" isn't the risk to Bitcoin. "The 're-emergence of Satoshi,' but he worked for the Chinese government the whole time" is the risk.
- odyssey7 3y agoCould you explain more of the reasoning for Bitcoin and Ethereum being proof of non-existence of a useful quantum computer?