Bitcoin TLDR

#93

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Summary

Sep 1 - Sep 7, 2025

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The development team at WizardSardine has made significant strides in securing Liana wallet descriptors, incorporating an encryption scheme inspired by Salvatore Ingala's work, with the progress documented through draft implementations and a Bitcoin Improvement Proposal (BIP) for community feedback. Resources and discussions have been made available on GitHub and DelvingBitcoin, highlighting the technical advancements and open questions regarding cryptographic methodologies and the choice of cipher.

An upcoming Bitcoin development workshop, detailed on ctv-csfs-workshops.github.io, aims to deepen the understanding of BIP 348 and the creation of CSFS transactions, indicating a concerted effort to engage the community in protocol enhancement discussions. Concurrently, the release of Bitcoin Knots version 29.1.knots20250903, as announced by Luke Dashjr, brings new features and improvements to the software, with further details and community engagement opportunities available at bitcoinknots.org.

Christopher Allen's efforts to integrate FROST with BDK for enhancing Bitcoin's security through distributed key generation and Schnorr-based signatures are showcased through demonstrations and resources available at Blockchain Commons' GitHub. This initiative exemplifies the ongoing advancements in Bitcoin technology and the community's dedication to improving security and functionality. Meanwhile, research revealing vulnerabilities in the Bitcoin network through stealthier variants of BGP hijacking underscores the critical need for enhanced security measures, as discussed on DelvingBitcoin, suggesting strategies for mitigating potential eclipse attacks and emphasizing the importance of robust defense mechanisms.

Active Discussions

[BIP Proposal] OP_TWEAKADD

4 replies

By Olaoluwa Osuntokun

Involving jeremy

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Original post on August 23, 2025 17:35 UTC

cyclic icon

Last reply on September 6, 2025 21:27 UTC

bitcoin-dev

  • Developers debated using x-only keys for Bitcoin Script, citing complexity and inapplicability.

  • Suggestions included modulo reduction for scalars over curve order to simplify cryptographic operations.

  • A proposed new op code might have lower operational costs than `OP_CHECKSIG`, prompting cost reevaluation.

[BIP Proposal] Elliptic Curve Operations for Bitcoin Script

2 replies

By jeremy

Involving Olaoluwa Osuntokun

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Original post on August 25, 2025 00:50 UTC

cyclic icon

Last reply on September 1, 2025 22:43 UTC

bitcoin-dev

  • The email describes an accidental feature in Bitcoin's opcodes enabling raw field arithmetic.

  • It suggests adding specific opcodes for these arithmetic operations to enhance efficiency.

  • This change aims to improve Bitcoin's cryptographic functionality and development agility.

Who will run the CoinJoin coordinators?

23 replies

By kravens

Involving 1440000bytes, AdamISZ+3 others

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Original post on June 2, 2024 10:01 UTC

cyclic icon

Last reply on September 5, 2025 11:25 UTC

delvingbitcoin

  • Wasabi Wallet 2.7.0 enhances anonymity via Tor, amid shutdowns of clearnet coordinators.

  • BTCPay Server's Coinjoin plugin development halts; users urged to switch to Wasabi Wallet.

  • There's a call for developers to maintain the Coinjoin plugin, signaling a community-driven effort.

CVE-2024-38365 public disclosure (btcd `FindAndDelete` bug)

11 replies

By AntoineP

Involving ariard, harding

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Original post on October 10, 2024 09:02 UTC

cyclic icon

Last reply on September 3, 2025 13:13 UTC

delvingbitcoin

  • The document reveals a key discrepancy in Bitcoin Core and Btcd's transaction validation.

  • It includes a unit test for Bitcoin Core version 27.0 to highlight the inconsistency.

  • The findings aim to support a secure, unified Bitcoin infrastructure by promoting transparency.

SwiftSync -- Speeding up IBD with pre-generated hints (PoC)

6 replies

By murch

Involving RubenSomsen, gmaxwell+2 others

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Original post on April 9, 2025 10:30 UTC

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Last reply on September 8, 2025 15:09 UTC

delvingbitcoin

  • SwiftSync is developing to sync platforms and devices for a seamless user experience.

  • It aims to offer developers a unified interface to easily integrate synchronization.

  • Feedback and beta testers are encouraged for improvement and updates on their website.

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