From: Andreas Schildbach <andreas@schildbach•de>
To: bitcoin-dev@lists•linuxfoundation.org
Subject: [bitcoin-dev] BloomFilter issue with segwit addresses
Date: Fri, 13 Apr 2018 17:32:15 +0200 [thread overview]
Message-ID: <paqids$e14$1@blaine.gmane.org> (raw)
Anton, a developer on the bitcoinj maiing list, recently made me aware
[1] of a compatibility issue between segwit and BIP37 (Bloom Filtering).
The issue affects only P2WPKH and the special case of transactions
without change outputs (such as when emptying a wallet). In this case,
neither inputs not outputs contain any data elements that would cause a
match for the filter. The public key, which would match, goes to the
witness but not to the input.
My suggestion was to include an OP_RETURN output with a matching public
key in such transactions. Anton confirmed that this workaround is indeed
working. But of course it nullifies some of the segwit's size improvements.
I wonder if Bitcoin Core would be willing to extend the BIP37 matching
rules such that data elements in the witness are also matched against?
[1] https://groups.google.com/d/msg/bitcoinj/SJpLgjowc1I/V7u2BavvAwAJ
next reply other threads:[~2018-04-13 15:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-13 15:32 Andreas Schildbach [this message]
2018-04-13 19:12 ` Jonas Schnelli
2018-04-13 22:15 ` Jim Posen
2018-04-14 16:14 ` Christian Decker
2018-04-14 19:46 ` Jim Posen
2018-04-15 18:37 ` Andreas Schildbach
2018-04-13 22:52 ` Luke Dashjr
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