Re: [bitcoin-dev] On the scalability issues of onboarding millions of LN mobile clients

2020-05-06 Thread Antoine Riard via bitcoin-dev
foster node adoption as much as we can. Le mar. 5 mai 2020 à 09:01, Luke Dashjr a écrit : > On Tuesday 05 May 2020 10:17:37 Antoine Riard via bitcoin-dev wrote: > > Trust-minimization of Bitcoin security model has always relied first and > > above on running a full-node. This curre

Re: [bitcoin-dev] [Lightning-dev] On the scalability issues of onboarding millions of LN mobile clients

2020-05-06 Thread Antoine Riard via bitcoin-dev
I didn't trust myself and verify. In fact the [3] is the real [2]. Le mar. 5 mai 2020 à 06:28, Andrés G. Aragoneses a écrit : > Hey Antoine, just a small note, [3] is missing in your footnotes, can you > add it? Thanks > > On Tue, 5 May 2020 at 18:17, Antoine Riard > wrote: > >> Hi, >> >>

Re: [bitcoin-dev] RBF Pinning with Counterparties and Competing Interest

2020-04-22 Thread Antoine Riard via bitcoin-dev
> In that case, would it be worth re-implementing something like a BIP61 reject message but with an extension that returns the txids of any conflicts? That's an interesting idea, but an attacker can create a local conflict in your mempool and then send the preimage tx to make hit recentRejects

Re: [bitcoin-dev] [Lightning-dev] RBF Pinning with Counterparties and Competing Interest

2020-04-22 Thread Antoine Riard via bitcoin-dev
Personally, I would have wait a bit before to go public on this, like letting some implementations increasing their CLTV deltas, but anyway, it's here now. Mempool-pinning attacks were already discussed on this list [0], but what we found is you can _reverse_ the scenario, where it's not the

Re: [bitcoin-dev] LN & Coinjoin, a Great Tx Format Wedding

2020-02-25 Thread Antoine Riard via bitcoin-dev
Morning Zeeman, > I proposed before to consider splicing as a form of merged closing plus funding, rather than a modification of channel state; in particular we might note that, for compatibility with our existing system, a spliced channel would have to change its short channel ID > and channel

Re: [bitcoin-dev] LN & Coinjoin, a Great Tx Format Wedding

2020-02-24 Thread Antoine Riard via bitcoin-dev
> I notice your post puts little spotlight on unilateral cases. > A thing to note, is that we only use `nSequence` and the weird watermark on unilateral closes. > Even HTLCs only exist on unilateral closes --- on mutual closes we wait for HTLCs to settle one way or the other before doing the

Re: [bitcoin-dev] LN & Coinjoin, a Great Tx Format Wedding

2020-02-24 Thread Antoine Riard via bitcoin-dev
chnorr happen we don't have to wait another period to start enjoying the privacy enhancement (worst-case we can fallback on 2p-ecdsa). Le sam. 22 févr. 2020 à 07:10, AdamISZ a écrit : > ‐‐‐ Original Message ‐‐‐ > On Friday, 21 February 2020 22:17, Antoine Riard via bitcoin-dev <

[bitcoin-dev] LN & Coinjoin, a Great Tx Format Wedding

2020-02-21 Thread Antoine Riard via bitcoin-dev
Coinjoins interceptions seem to raise at an increasing pace. Their onchain fingerprint (high-number of inputs/outputs, lack of anti-fee snipping, script type, ...) makes their detection quite easy for a chain observer. A ban of coinjoin'ed coins or any other coins linked through a common ownwer

Re: [bitcoin-dev] Taproot (and graftroot) complexity

2020-02-09 Thread Antoine Riard via bitcoin-dev
> In particular, you care more about privacy when you are contesting a > close of a channel or other script path because then the miners could be more > likely to extract a rent from you as "ransom" for properly closing your channel > (or in other words, in a contested close the value of the

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