Tree-shaped programs like Miniscript are easy to read and analyze. Simplicity follows in these footsteps, enabling arbitrary computation using a tree, which can bring covenants, delegation, and more to Bitcoin.
Read the latest from #BlockstreamResearch:
Read the latest from #BlockstreamResearch on the development of open-source e-cash protocol @fedimint.
💾 Rebranding MiniMint to Fedimint
🧙♂️ Gaining developer traction
⚡️ Integrating Lightning
🌐 Signet coming soon
The #BlockstreamResearch team is excited to share the current progress on our research into the aggregation of signatures based on curve secp256k1, including an early draft BIP for non-interactive half-aggregation of BIP 340 Schnorr signatures. 🔏
https://blog.blockstream.com/half-aggregation-of-bip-340-signatures/
8/ Elsewhere, #BlockstreamResearch and partners from @UniFAU & @CISPA proposed ROAST, a wrapper for Schnorr scheme FROST, which would scale threshold signatures in L2s like @Liquid_BTC that use a federated consensus model.
Whitepaper 👇
1/ #LAYER2ROUNDUP: Specter, Umbrel, & SideSwap share Liquid news, CLN v0.11.1, a new LND RC, Coin Corner announces The Bolt Card, & a new paper from #BlockstreamResearch on signature schemes for L2.
🧐 blog-form (more in-depth) [https://blog.blockstream.com/layer-2-roundup-june-22/]
👇 tweet-form
#BlockstreamResearch has been working on a wrapper for threshold signature schemes like FROST that guarantees a quorum of honest signers, such as @Liquid_BTC functionaries, and scales to even larger groups (tested with a 67-of-100 setup). 🔏
Learn more👇
https://medium.com/blockstream/roast-robust-asynchronous-schnorr-threshold-signatures-ddda55a07d1b
The #BlockstreamResearch team wrote about a new formally-proved fast & constant-time extended GCD algorithm that's under development for libsecp256k1 which would dramatically improve transaction signing performance and verification for #Bitcoin nodes. 🖊️ https://medium.com/blockstream/a-formal-proof-of-safegcd-bounds-695e1735a348
In our latest #EngineeringBlog article, the #BlockstreamResearch team describes a hypothetical undetectable hardware wallet key exfiltration attack, and a new feature we've developed for #BlockstreamJade (and other HWWs) to protect users' keys. 🔐💠 https://medium.com/blockstream/anti-exfil-stopping-key-exfiltration-589f02facc2e
