On Sun, Jan 4, 2015 at 2:43 PM, Ross Nicoll <j...@jrn.me.uk> wrote: > Dear all, > > I've been looking at atomic cross-chain trading ( > https://en.bitcoin.it/wiki/Atomic_cross-chain_trading ) between the > Bitcoin and Dogecoin blockchains, and have a mostly functional > prototype. However as it stands if the refund transaction is relayed > before the actual spend transaction, it "blocks" the legitimate spend > transaction from being accepted into the memory pool.
Unless there is a serious bug that I am not aware of this is not the case. The unlocked transaction is not relayable and will not be mempooled (well, until right before it locks). > I've drafted a patch for this > https://github.com/rnicoll/bitcoin/commit/e668d36607f008990ccaac7275e463a6efdd9b5a > but have not yet raised a PR, as historically this has lead to a lot of > discussion in Github which is better suited to this mailing list. > > I'm therefore looking for feedback while I continue testing that patch, > and any comments would be welcomed. This appears to have absolutely no protection against denial of service, it seems to me that a single user can rapidly update their transaction and exhaust the relay bandwidth of the entire network. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
