sipa changed the topic of #bitcoin-wizards to: This channel is for discussing theoretical ideas with regard to cryptocurrencies, not about short-term Bitcoin development | http://bitcoin.ninja/ | This channel is logged. | For logs and more information, visit http://bitcoin.ninja
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<kanzure> "Fast multiparty threshold ECDSA with fast trustless setup" http://stevengoldfeder.com/papers/GG18.pdf
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<jnewbery> How realistic would it be to do threshold ECDSA on current hardware wallets?
<gmaxwell> not at all.
<gmaxwell> well, hold that, I haven't seen the above paper, but all the prior ones were not at all. They needed an order of magnitude more memory than the devices have.
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<andytoshi> connor's presentation at scaling bitcoin had him spending over a second of computation time on his laptop at one point
<sipa> but is that using goldfeder's new construction?
<andytoshi> pretty sure not
<sipa> signing time in connor's stuff was 30-40 ms to sign agaik
<andytoshi> right, iirc i'm thinking of key setup (which was like a minute wasn't it?)
<andytoshi> i wonder if you'd have to redo the key setup if you were doing p2c or public bip32 derivation
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<waxwing> sipa, you might want to answer paddy here :) https://twitter.com/paddykcl/status/1052986200812851200
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<sipa> waxwing: done
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<bitconner> OMM 2pecdsa keygen is slightly under 1s and signing is just under 30ms
<bitconner> note that this exploits multiple cores, if i run the benchmarks constrained to 1 cpu, keygen is ~3.3s, but signing stays about the same
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<bitconner> "Fast Secure Multiparty ECDSA with Practical Distributed Key Generation and Applications to Cryptocurrency Custody" https://eprint.iacr.org/2018/987.pdf
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<kanzure> oh, that's the other one.
<kanzure> yours is Lindell
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<bitconner> yeah both were dropped at acm yesterday
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<andytoshi> ah, i think my "one minute number" was a back-of-the-envelope conversion from 1 second on a PC to time on a ledger or trezor. but i didn't consider memory usage
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<fkinglag> I wonder if anybody else here thinks LN will become 1st layer.
<kanzure> layer ordering is off-topic
<fkinglag> lol
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<sipa> i agree. it's weird that we don't start counting layers at 0 :p
<andytoshi> i wonder if we could do tcp over ln
<kanzure> but...
<kanzure> it's not in the budget.
<fkinglag> I hate budget initiatives
<fkinglag> in open source blockchain coins
<fkinglag> what is the opinion here of the bitcoin foundation?
<fkinglag> I need to be told what to think. /s
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<kanzure> get out
<fkinglag> I'm genuinely curious, don't bite my head off, kanzure. I'm just disillusioned with how a budget proposal with users behind multisig wallet is happening in another cryptocurrency community I'm in.
<fkinglag> not like you have to offer up an opinion, I don't need an answer
<sipa> fkinglag: this channel is for discussion of theoretical ideas around cryptocurrencies, not political drama
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<fkinglag> ok, didn't know it was completely unrelated, sorry
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