Bitcoin Optech on Nostr: Bitcoin Optech newsletter #335 is here: - links to information about longstanding ...

Bitcoin Optech newsletter #335 is here:

- links to information about longstanding deanonymization vulnerabilities in software using centralized coinjoin protocols
- summarizes an update to a draft BIP about the ChillDKG distributed key generation protocol compatible with scriptless threshold signing
- adds a new monthly section summarizing proposals and discussion about changing Bitcoin’s consensus rules
- Optech Newsletter #335 Recap on Riverside
https://bitcoinops.org/en/newsletters/2025/01/03/

Yuval Kogman posted to the Bitcoin-Dev mailing list details about several privacy-reducing vulnerabilities in the centralized coinjoin protocols used by current versions of the Wasabi and Ginger wallets, plus past versions of the Samourai, Sparrow, and Trezor Suite software wallets...
https://bitcoinops.org/en/newsletters/2025/01/03/#deanonymization-attacks-against-centralized-coinjoin

Tim Ruffing and Jonas Nick posted to the Bitcoin-Dev mailing list a link to the current draft BIP for ChillDKG, which describes a distributed key generation protocol compatible with FROST scriptless threshold signatures for Bitcoin...
https://bitcoinops.org/en/newsletters/2025/01/03/#updated-chilldkg-draft

Changing consensus:

- CTV enhancement opcodes
- Adjusting difficulty beyond 256 bits
- Transitory soft forks for cleanup soft forks
- Quantum computer upgrade path
- Consensus cleanup timewarp grace period
https://bitcoinops.org/en/newsletters/2025/01/03/#changing-consensus

Bitcoin Optech will host an audio recap discussion of this newsletter with special guest Yuval Kogman on Riverside.fm Tuesday at 15:30 UTC. Join us to discuss or ask questions!
https://riverside.fm/studio/bitcoin-optech