Socratic Seminar 49
2024-07-29
Housekeeping
- This meetup is generously sponsored by Digital Garage, Bitrefill, and Bitnomial.
- Questions are encouraged, including basic ones!
- Socratic Seminars are held under the Chatham House Rule: share the information you receive, but do not reveal the identity of who said it.
- For the privacy of other attendees, please refrain from taking photographs of other people without their permission.
- Socratic seminars are best when the moderator can let the conversation flow, so try to keep things concrete and focused.
- The reading list covers June 23rd to July 27th.
Chain Weather Report
News & Announcements
- Mt. Gox starts repayments
- Charting the Course to Mt. Gox Repayments
- Proton launches Bitcoin wallet
- Mempool Accelerator is now live
- Nunchuk releases wallet rollover feature
Discussion
Tweets & Blogs
FROST
- FROST Federation
- FROST Threshold Signatures for Multiple Channel Updates
- BIP Draft: "ChillDKG: Distributed Key Generation for FROST"
- RFC 9591 The Flexible Round-Optimized Schnorr Threshold (FROST) Protocol for Two‑Round Schnorr Signatures
bitcoin-dev
- A "Free" Relay Attack Taking Advantage of The Lack of Full-RBF In Core
- Octojoin: Payjoin with no interaction between sender and recipient
- BIP Authors: These BIPs could be Final
Delving Bitcoin
- FE'd Up Covenants
- FE'd Up Covenants paper
- Introduction to cluster linearization
- Bitcoin OP_CAT Use Cases
- Empirical Data Analysis of Fee Rate Forecasters for ASAP (next-block) Fee Estimation
- B’SST: Bitcoin-like Script Symbolic Tracer v0.1.3 released
CVEs and Research
Research
- Concurrently secure blind Schnorr signatures
- Adaptor Signatures: New Security Definition and A Generic Construction for NP Relations
- Blockchain Space Tokenization
- Simple Logarithmic-size LSAG signature
- Shared-Custodial Password-Authenticated Deterministic Wallets
- Unforgeability of Blind Schnorr in the Limited Concurrency Setting
Disclosures & Advisories
- Public disclosure of 10 vulnerabilities affecting Bitcoin Core < 0.21.0
- Optech on Disclosure of Vulnerabilities
- Security Advisories
- Wasabi Wallet Security Incident Disclosure: July 9th-10th 2024
InfoSec
- Cloudflare blames recent outage on BGP hijacking incident
- DNS hijacks target crypto platforms registered with Squarespace
- Indirector: High-Precision Branch Target Injection Attacks Exploiting the Indirect Branch Predictor
- Polyfill supply chain attack hits 100K+ sites
Pull Requests
Bitcoin Core
- net: Allow -proxy=(::1) on nodes with IPV6 lo only
- assumeutxo: Don't load a snapshot if it's not in the best header chain
- rest: Reject negative outpoint index early in getutxos parsing
- refactor: add coinbase constraints to BlockAssembler::Options
- Wallet: Add
max_tx_weightto transaction funding options (take 2) - Fix cases of calls to
FillPSBTerrantly returningcomplete=true - Make it possible to disable Tor binds and abort startup on bind failure
- script/sign: avoid duplicated signature verification after signing (+introduce signing benchmarks)
- kernel: De-globalize static validation variables
- net: fix race condition in self-connect detection
- MiniMiner: use FeeFrac in AncestorFeerateComparator
- test/BIP324: disconnection scenarios during v2 handshake
- psbt: Check non witness utxo outpoint early
- #28984 package rbf followups
- wallet: Migrate legacy wallets to descriptor wallets without requiring BDB
- prune, rpc: Check undo data when finding pruneheight
- Assumeutxo: bugfix on loadtxoutset with a divergent chain + test
- kernel: De-globalize validation caches
- validation: Check if mempool exists before size check in ActivateSnapshot
- Several randomness improvements
- rpc: Avoid getchaintxstats invalid results
- assumeutxo: Check snapshot base block is not in invalid chain
- kernel: remove mempool_persist
- init: Add option for rpccookie permissions (replace 26088)
- policy: Add PayToAnchor(P2A), OP_1 <0x4e73> as a standard output script for spending
BDK
- feat(electrum)!: Update
bdk_electrumto use merkle proofs - refactor(wallet)!: Add support for custom sorting and deprecate BIP69
rust-bitcoin
- Move locktimes and
Sequencetoprimitives - Specify required_height in variable name when comparing to other height
- Optimize base58 on small inputs
- Add
TxIdentifiertrait - Move opcodes to
primitives - bip152: check if indexes do not overflow
- bip158: Hash data instead of copying first
- OP_RETURN standardness check