--- Log opened Tue Feb 04 00:00:29 2020
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23:05 < gmaxwell> https://bitcoinops.org/en/newsletters/2020/02/05/ is kinda odd
23:06 < gmaxwell> anyone ever find any implementation that verifies after in open source code in the wild?
23:06 < gmaxwell> I think it's strange to say " However, there remains a risk that inexperienced developers will not perform this step" regarding a pretty computationally expensive step that I don't ever recall seeing any implementation take.
23:08 < sipa> gmaxwell: agree
23:10 < sipa> harding: ping ^... perhaps it's better to say something like "However, the computational overhead of this approach may not be acceptable to many applications" or so
23:14 < jonatack> ^ commented in the PR: https://github.com/bitcoinops/bitcoinops.github.io/pull/334/files#r375089965
23:17 < gmaxwell> (I think probably _we_ should do this in libsecp, optionally annd have it controllable with a context flag... because our signing is usually used in cases where performance doesn't matter)
23:33 < gmaxwell> I guess in bitcoin-core it kind of accidentally verifies after since it puts stuff in the mempool before relaying.
23:33 < gmaxwell> I think you could extract from the wallet via getraw a txn with a failing signature however.
23:41 < sipa> gmaxwell: no, even before that
23:41 < sipa> the script signing logic invokes validation
23:41 < sipa> to determine whether it's done signing
23:42 < sipa> though i'm not sure that failure at that level would e.g. not result in the invalid signature ending up in a PSBT or so
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--- Log closed Wed Feb 05 00:00:30 2020