Michael Folkson @[email protected]

Had some thoughts on the blinded DH key exchange idea for Chaumian mints that Ruben Somsen outlined a while back (that he got from a very old David Wagner post):

https://gist.github.com/RubenSomsen/be7a4760dd4596d06963d67baf140406?permalink_comment_id=4301267#gistcomment-4301267

ping @nothingmuch I didn't have your github acct to hand :)
This is inspired by @callebtc 's new repo:

https://github.com/callebtc/cashu

#bitcoin #cryptography

Lighthouse - Lightning network explorer

Link: https://lnlighthouse.online/
Comments: https://stacker.news/items/68195

#StackerNews is like Hacker News but it pays you #bitcoin

Barbell it.
---
RT @michaelfolkson
Need more bipolar personalities who are extremely risk averse at consensus layer and extremely risk seeking outside of consensus layer :)
https://twitter.com/michaelfolkson/status/1552991305642508288

Tracy (of Bitrefill), in our Bitcoinology meetup yesterday, posed the question to the audience: if you knew for sure that BTC would go down to 1K and stay there for the next 5 years, would you still hold Bitcoin? And framed it as: if the answer's no, then your use case is speculation.

I think this is wrong from a couple of angles (though of course a good point to raise!). Let me explain.

First, if I know an asset's value is going to go down (in purchasing power),

(1/n)

Creating a Core Lightning channel funded by JoinMarket

Link: https://gist.github.com/BitcoinWukong/0c04d9186251b0a6497fef3737e95ceb
Comments: https://stacker.news/items/48614

#StackerNews is like Hacker News but it pays you #bitcoin

🔊Don't miss today's event!

📅Wednesday - 13 [email protected]:00

Conor Okus from Spiral & https://bitcoindevelopers.xyz will give us insights into how #Bitcoin and other open source development project funding works.

https://www.meetup.com/bitcoinology/events/287012862/

Git is event-sourced. This is important because once you realize this, you know that whatever stupid things you do, you can recover from it.

It may be hard to find how, but be assured: you can recover from any git-mistake.

This story strongly relates to "key prefixing":

https://blog.trailofbits.com/2022/04/15/the-frozen-heart-vulnerability-in-bulletproofs/

The ambiguity is that the Fiat Shamir transform is conceptually 'hash the transcript of the conversation up to the challenge'; but where does the conversation *start*?

In basic Schnorr you can "forge" signatures on e.g. unpredictable keys, if you don't key-prefix (i.e. you don't start the conversation with the public key), which isn't important *most* of the time, ... (1/2)
#cryptography

Coldcard Video Tutorial - I've created the most robust and in-depth vid tutorial on the internet. CC is a beast, insanely versatile and packed with features. First section is basics, then it dives into advanced features. All paired with Sparrow Wallet on desktop. Watch this to go from zero to hero.

Link: https://www.youtube.com/watch?v=FAYmE5-40PQ
Comments: https://stacker.news/items/37963

#StackerNews is like Hacker News but it pays you #bitcoin