Bitcoin Core 28.0

https://bitcoincore.org/en/releases/28.0/

There is a new release of Bitcoin Core. We will go through the release notes and make sure everyone understands the changes.

BIP 85 breaking changes

A breaking change to BIP 85 was merged into the BIP repository. We will examine how this happened and what we can do to prevent this in the future.

SALT TYPHOON

https://techcrunch.com/2024/10/07/the-30-year-old-internet-backdoor-law-that-came-back-to-bite/

A group connected to the Chinese government has gained access to the extraordinary access systems that certain telecom companies have in place by law to service requests by the US government.

Data Availability for Bitcoin Rollups

https://eprint.iacr.org/2024/1299.pdf

This is a protocol for measuring the availability of off-chain data on-chain. The protocol works well under an honest majority assumption.

Hybrid Jamming Mitigation: Results and Updates

https://delvingbitcoin.org/t/hybrid-jamming-mitigation-results-and-updates/1147

We will review the main channel jamming attacks that reduce the throughput and increase the latency of the lightning network; and some proposed mitigations. This post discusses an exercise in which a red team tries to carry out the attacks against a group of nodes which have implemented certain mitigations.

MuSig2 merged libsecp256k1

https://github.com/bitcoin-core/secp256k1/blob/master/examples/musig.c

MuSig2 is a secure n-of-n signing scheme that combines participant keys into a group key and produces Schnorr signatures for the group key.