Re: [Lightning-dev] Gossip Propagation, Anti-spam, and Set Reconciliation

2022-04-22 Thread Rusty Russell
Matt Corallo writes: >> Allowing only 1 a day, ended up with 18% of channels hitting the spam >> limit. We cannot fit that many channel differences inside a set! >> >> Perhaps Alex should post his more detailed results, but it's pretty >> clear that we can't stay in sync with this many differenc

Re: [Lightning-dev] Gossip Propagation, Anti-spam, and Set Reconciliation

2022-04-22 Thread Matt Corallo
On 4/21/22 7:20 PM, Rusty Russell wrote: Matt Corallo writes: Sure, if you’re rejecting a large % of channel updates in total you’re gonna end up hitting degenerate cases, but we can consider tuning the sync frequency if that becomes an issue. Let's be clear: it's a problem. Allowing only

Re: [Lightning-dev] Gossip Propagation, Anti-spam, and Set Reconciliation

2022-04-22 Thread Matt Corallo
On 4/22/22 9:15 AM, Alex Myers wrote: Hi Matt, Appreciate your responses.  Hope you'll bear with me as I'm a bit new to this. Instead of trying to make sure everyone’s gossip acceptance matches exactly, which as you point it seems like a quagmire, why not (a) do a sync on startup and

Re: [Lightning-dev] Gossip Propagation, Anti-spam, and Set Reconciliation

2022-04-22 Thread Alex Myers
Hi Matt, Appreciate your responses. Hope you'll bear with me as I'm a bit new to this. > Instead of trying to make sure everyone’s gossip acceptance matches exactly, > which as you point it seems like a quagmire, why not (a) do a sync on startup > and (b) do syncs of the *new* things. I'm not

[Lightning-dev] Security issue in anchor outputs implementations

2022-04-22 Thread Bastien TEINTURIER
Good morning list, I will describe here a vulnerability found in older versions of some lightning implementations of anchor outputs. As most implementations have not yet released support for anchor outputs, they should verify that they are not impacted by this type of vulnerability while they impl