Ninjastic
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Re: Quantum computers to crack SHA256 - when will that become reality?
by
ranochigo
on 16/04/2017, 03:06:32 UTC
Quote from: Decoded on April 15, 2017, 12:20:45 AM
Quote from: achow101 on April 14, 2017, 02:10:23 PM
This topic has been discussed multiple times already. Please use the search function or google and read up on the subject.

There are no known ways that quantum computers will break sha256.

Doesn't the fact that quantum computers are more efficient than classical computers (Taken from https://cs.stackexchange.com/questions/50366/is-there-any-proof-that-quantum-computers-are-more-efficient-than-classical-comp) mean that they will be slightly better than normal computers at hashing? Maybe not exponentially, but slightly more efficient?
The only thing that quantum computers can do is to speed up the calculation of SHA256 hashes. Even if its faster than normal computers by a factor of thousands, the ASICs would still be way faster than quantum computers. The difficulty will rise and the network would continue as per normal.

ECDSA is a bigger problem than this.