--- Log opened Sun Mar 24 00:00:24 2019
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05:12 < stevenroose> andytoshi: bitcoin_hashes has no ambition to provide siphash, right?
07:41 < andytoshi> nope
07:41 < andytoshi> isn't siphash in the stdlib?
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09:52 < stevenroose> andytoshi: they removed it, apparently. Well, they "moved" it to std::collections::hash_map::DefaultHasher which doesn't really give a guarantee that it won't change to another hash algo
10:05 < andytoshi> ah, yeah, that's a good point
10:06 < andytoshi> i wouldn't mind having siphash in bitcoin_hashes
10:06 < andytoshi> the stdlib siphash isn't even siphash btw, they removed a round or something silly for optimization, and got a cryptographer to sign off on that
10:09 < gmaxwell> siphash has always been 'paramterized' by round count.
10:10 < gmaxwell> in any case, siphash is normative in the bitcoin p2p protocol (for compact block shortids)
10:10 < gmaxwell> so you probably want a version for that.
10:13 < andytoshi> oh! i didn't realize.
10:13 < andytoshi> then yes, we are interested in siphash for bitcoin_hashes
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16:01 < stevenroose> I created a compact blocks PR using the siphasher crate. Seems to be a clone of std's siphash before the change.
16:02 < stevenroose> Doesn't build on 1.24.0, though
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22:28 < TamasBlummer> yes, that would be great. siphash is also in BIP157. the siphasher crate is used in murmel as well.
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--- Log closed Mon Mar 25 00:00:25 2019