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How does Satoshi prove they're Satoshi after quantum computers arrive? According to Dan Boneh, the answer is leaving a cryptographic note onchain today, then opening it in 100 years.

53,604 Aufrufe • vor 4 Tagen •via X (Twitter)

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Can a sufficiently powerful quantum computer forge the signatures used to authorize Bitcoin and Ethereum transactions? What would it take to upgrade both networks before that happens? In this new lecture, Stanford cryptographer Dan Boneh explores why blockchains may turn to signatures built from hash functions. He also presents new research on threshold signing. The talk ends with the questions Bitcoin still has to answer, including whether post-quantum signatures will require larger blocks, what happens to abandoned coins, and how someone such as Satoshi could prove ownership after Bitcoin’s current signatures have been retired. 00:00 Why blockchains need to prepare for quantum computers 03:05 Why Bitcoin may bet on hash-based signatures 06:25 The “big footgun” in stateful signatures 08:58 A quantum-safe signature that takes one billion hashes 14:13 Inside SLH-DSA’s virtual tree 20:30 How Bitcoin and Ethereum could make the switch 23:48 What happens when a wallet loses its state? 32:47 Can threshold signing survive the quantum transition? 36:39 How to hide lattice cryptography from the blockchain 38:49 Why threshold one-time signatures seem impossible 45:36 How context prevents forged signatures 49:37 The forgotten idea behind Winternitz signatures 54:50 Turning one-time signatures into threshold signatures 1:04:27 Will quantum-safe signatures require bigger Bitcoin blocks? 1:06:26 Abandoned bitcoin and Satoshi’s recovery problem

a16z crypto

115,401 Aufrufe • vor 8 Tagen

Richard Werner, formerly on the ECB's "Shadow Council," describes how Satoshi Nakamoto, the supposed originator of Bitcoin, translates to "Central Intelligence." "The secret service agencies... like to... give hints, because... they'd like to be talked about, but they have to work in secret." This clip of Werner (Richard Werner), who holds a First Class Honors BSc. in Economics from the London School of Economics and a doctorate in Economics from the University of Oxford, is taken from the International Science Summit (Uncensored), which took place in 2022. ---------------Partial transcription of clip--------------- "They give you some hints [about the origins of Bitcoin]. For example, I mean, I've said this many years ago. You know, having lived in Japan for 12 years, I was interested in the fact that the alleged legendary or apocryphal founder of bitcoin, is called Satoshi Nakamoto. Now, I thought, okay, what does that mean? Satoshi Nakamoto. And then there was no such person. People saying, is it this person or that person? But nobody really seemed to be the actual Satoshi Nakamoto. "But that's the sort of name they used. It is a Japanese name. Okay? If it's a Japanese name, well, then let's treat it like a Japanese name. Which means, step one, put it in the order of Japanese names. Now, in all Asian languages, you put the family name first. So it's Nakamoto Satoshi. That's step one. "Step two, write it in Japanese. And if we had a board, I'd write it down. So they actually use Chinese characters for this. Nakamoto is very, very simple. It's naka, which is also part of the name for China. The center, the central kingdom, you know. And moto is the second character of Japan. The origin of the sun. The origin. So center, origin. And Satoshi is the Chinese character for wisdom or intelligence. "Now, you often use two characters to emphasize one concept, which is how you could read this. So this could mean very central. So center and then moto together is really central. Okay. And, satoshi you can translate as intelligence. So we're really saying this name means central intelligence. "You've got to at least have some basic understanding of Japanese and writing these in Japanese. But I think they, the secret service agencies, they, they like to sometimes give hints, you know, because really, they'd like to be talked about, but they have to work in secret."

Sense Receptor

39,383 Aufrufe • vor 10 Monaten