darsie



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transaction malleability workaround, end the current crisis February 13, 2014, 03:40:24 AM

Last edit: February 13, 2014, 03:53:30 AM by darsie #1 Hey!



If I understood it right, the exchanges halted withdrawals because scammers modified transactions so the exchange wouldn't recognise them on the block chain and resend them, paying the scammer twice.



Instead of halting all withdrawals, exchanges could, IMHO, just stop resending withdrawals if they seem missing.



Only resend if you have a method of correctly determining that a tx really failed. I guess that might be done via the tx signature(s), as these can't be modified by a scammer without making the tx invalid.



If an exchange creates only proper tx there should be no failed tx and all should be fine. If there are bugs and tx do fail, these tx might be resolved manually, or accumulate, until they are eventually processed somehow. But some stuck tx are still way better, IMO than all withdrawals halted.



So, just stop resending appearently failed tx (if that is not safe) and resume withdrawals.



Bernhard

