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Can't say for sure but I think the bitcoin community would come to a majority consensus on the last block in the blockchain before the attacks started, and at w
by javert 14y ago
Can't say for sure but I think the bitcoin community would come to a majority consensus on the last block in the blockchain before the attacks started, and at which point the new crypto algorithm must be used.
- tedunangst 14y agoI think you're right. I was assuming you'd need to conduct a transaction with the new hash to "prove" ownership, but that doesn't seem necessary. If the flaw involved faking private keys, that'd be different.
- ewillbefull 14y agoI'm not sure they would force new transactions to use the new hashing algorithm. Bitcoin uses scripts (a little state machine) to embed verification behaviors directly into the blockchain. You could only introduce the new hashing algorithm to the protocol, and by natural incentive to upgrade (more security), expect more transaction outputs to use it. I'm not sure the Bitcoin developers would force clients to ignore certain hashing algorithms -- scripts can be very dynamic and the smaller the hashes are, the cheaper they are to add to the blockchain.