vandals drew over the satsale cow
At Frostsnap ❄ we're building the new age of mathematically enforced monetary powertools. With Frostsnap, you can protect digital assets and identity behind multiple keys:
For example, you could arrange a '2-of-3' where one key is your phone, one is a hardware wallet device, and the third key is given to a friend you trust. In order to spend your bitcoin you must sign on two of these three devices.
An alternative scenario is a company with a treasury and identity they need to protect. They have a bunch of executives, say 6. The executives generate a Frostsnap key which they share, requiring 4-of-6 excetutives to sign in order to take actions on behalf of the company.
The ownership of this money and indentity (read: social media) is
cryptographically protected through mathematics; making you secure,
soverign, and uncensorable.
Frostsnap provides upmost financial flexibility suited to your needs as an individual or organisation, you're not just another customer at a bank.
FROST has good privacy, scales well with fees, and is malleable (can add or remove signers after key generation!). 🪄 polynomials ❄.
Team (Lloyd, Adam, myself) were recently spotted booth hijacking and performing rogue demos of our stealth Frostsnap project @ BTCPrague,
A plus of the work from home ratcage during lockdowns was that lots
of time could be spent on my first free open-source software
SatSale is a lightweight payment processor written in python - SatSale.org.
Notably it was the first piece of software I have written which others have found to be useful.
You can connect SatSale to your own Bitcoin node or clightning/lnd node. SatSale also supports xpubs, lightning addresses, woocommerce point-of-sales and more! It can be used to spit out unique addresses like we see around this page (test em).
Making a blind schnorr signature implementation in a
PR to secp256kfun.
Blind signatures allow you to disguise a message which you then ask a signing server to sign. Once you recieve the signature for the message, you can unblind it, resulting in a completely new signature that is still valid under the server's public key.
You can have a server sign something, without them learning what
they have signed! This is powerful for building coordinators or
authorities that respect user privacy.
I've built a demonstration of blind schnorr signatures 👀 which runs entirely in browser using WASM 🦀 and it can even sign a Nostr post!
I've also been helping make the secp256kfun MuSig2 implementation compatible with the MuSig BIP. Work was needed for the the ability to create "ordinary" taproot tweaks to the joint MuSig key. These ordinary tweaks, as opposed to X-only tweaks, are used to derive BIP32 child keys for addresses using the MuSig aggregate key.
pollofeed.comtry not to feed the mice 🐁
pray for pollofeed uptime
BLS and announcement free DLCs - Oracles are only called upon to arbitrate DLC bets when there is a dispute.BLS // DLCs // ORACLES
Silent payments - Private reusable static addresses without the need for an onchain 'notification transaction' while also remaining non-interactive. Receiver detects payments by scanning the UTXO set. Also see: article and reusable taproot addresses.TAPROOT // PRIVACY // REUSABLE PAYMENT CODES // SCHNORR // DIFFIE-HELLMAN
Minimint - Federated chaumian banks that allow the anonymous transfer of assets that are backed by the mint.FEDERATED CHAUMIAN MINTS // SCALING // BLIND SIGNATURES
Teleport transactions - Alice and bob can exchange bitcoin with one another in completely disconnected transactions (think atomic swap on the same chain).COIN SWAPS // PRIVACY // TAPROOT // SCHNORR
Schnorr Signature Series
- from the basics to blind signatures, scriptless scripts,
Highly recommend that you have a go at writing any math out.
Blind Schnorr Signatures & Security (video) - so informative you'll have to pause a lot.
BIP340 - Schnorr Signatures for secp256k1- lots of small intricacies like how taproot public keys have implicity y-coordinates (xonly).
Entropy Attacks! The conventional wisdom says that hash outputs can't be controlled; the conventional wisdom is simply wrong.
Bitcoin's fungibility must become completely unquestionable through various abstractions of utxos. Collaborative transactions, multisigs, and swaps, L2s, & protocol changes.