4 ms·
We're going to see such things at some point, there are a few "bitcoin address collider", some of them are even distributed.
by akerro 7y ago
We're going to see such things at some point, there are a few "bitcoin address collider", some of them are even distributed.
- Thorrez 7y agoAFAIK, there are 160 bits of entropy in a bitcoin address. Let's say satoshi has ~1 million addresses with bitcoin in them (2^20). That means 2^140 attempts need to be made to steal any of satoshi's bitcoins. Cracking 128 bits of entropy is essentially impossible[1], cracking 140 bits is even harder. This collider tried 7 quadrillion addresses in 1 year[2]. That's 2^53, nowhere near 2^140. [1] https://crypto.stackexchange.com/a/1148 https://crypto.stackexchange.com/a/1148 [2] https://www.vice.com/en_us/article/nzpv8m/the-large-bitcoin-collider-is-generating-trillions-of-keys-and-breaking-into-wallets https://www.vice.com/en_us/article/nzpv8m/the-large-bitcoin-...