Topic: Malleability Query (Read 2372 times)
Have I got this right?
Mr. Bad has 1 BTC in account with Gox
Mr. Bad sends withdrawal request for 1 BTC to Gox
Gox software sends 1 BTC with TX no. 0 to Mr. Bad
Mr. Bad broadcasts mutated version with TX no. 1
If TX no 1 gets in blockchain first then TX 0 never confirms.
Mr. Bad can then withdraw another 1 BTC from Gox because Gox in-house software checks only for whether TX 0 has confirmed.
Rinse and repeat?
But how can Mr. Bad broadcast mutated version quickly enough? How does he know when Gox have sent Tx 0? Unless he can do it quickly, Tx 0 is likely to confirm before Tx 1?
Mr. Bad has 1 BTC in account with Gox
Mr. Bad sends withdrawal request for 1 BTC to Gox
Gox software sends 1 BTC with TX no. 0 to Mr. Bad
Mr. Bad broadcasts mutated version with TX no. 1
If TX no 1 gets in blockchain first then TX 0 never confirms.
Mr. Bad can then withdraw another 1 BTC from Gox because Gox in-house software checks only for whether TX 0 has confirmed.
Rinse and repeat?
But how can Mr. Bad broadcast mutated version quickly enough? How does he know when Gox have sent Tx 0? Unless he can do it quickly, Tx 0 is likely to confirm before Tx 1?
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