One thing that occurred to me recently is that it'd be useful if filters could contain exact matches as well as Bloom filters.
Specifically I'm thinking of things like my bond network proposal where some outputs may be marked as special using script fragments like "BOND" <data or hash of data> 2DROP. This would allow systems that are only interested in data and transactions relevant to bonds to exact-filter the chain on that marker, and then when a transaction is discovered, add the hash of that transaction to a parallel Bloom filter, ensuring you can see any transactions that connect to it. The spec as provided by Jeff doesn't specify how filters are matched against transactions. I propose the following algorithm: For each TX: - Check if the hash of the tx itself matches the filter - For each input: - For each script data element check if it is found in the filter - Check if the COutPoint.hash value is in the filter (let's you select txns that connect to arbitrary txns of interest) - For each output - For each script data element check if it is found in the filter ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
