Remember remember the 5th of November (OP)
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Activity: 1862
Merit: 1011
Reverse engineer from time to time
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May 24, 2013, 08:43:18 PM Last edit: May 24, 2013, 08:53:52 PM by Remember remember the 5th of November |
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For instance, a transaction has many small inputs, and the user sends this transaction without a fee. Would a node relay this transaction to other nodes regardless of the fact that it has zero fee, but it's big(not huge, just bigger than normal)?
Trying to figure out if an attack like this would work: User A sends User B a transaction of the type described above. User A first makes sure his node has a lot of connections and broadcasts this transaction without a fee just once and never again. User B after a while sees this tx in Bitcoin-Qt and is willing to send User A say 500 Litecoins immediately, but includes a sufficient fee. No miner is willing to include User A's transaction in a block, so after a while most nodes will drop it from their memory pool and it will be forgotten. User A now gets to keep his Bitcoins and also 500LTC.
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