What will happen when a collision in SHA256 be found?


Would the protocol migrate to another Hash Algorithm inmediatly? What would be the next? SHA3 or BLAKE 2?


Posted 2020-06-22T21:17:17.293

Reputation: 105



No hash function has ever been broken in a way that would be meaningfully have an impact to Bitcoin. It’s not even a consideration, other than for OP_SHA1 which has no non-academic usage in Bitcoin.


Posted 2020-06-22T21:17:17.293

Reputation: 12 846

Some cryptographers thinks that is matter of time to find a collision a in SHA256. I know won't be soon, but what will happen when that collision be found? a Hard Fork? – mengeroshi – 2020-06-22T21:33:50.610

Nowhere in Bitcoin would a SHA256 collision actually matter. – Anonymous – 2020-06-22T21:36:50.383