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Algorithm Agility for Bitcoin to maintain security in the face of quantum and classic breaks in the signature algorithms

27 replies

By Ethan Heilman

Involving Matt Corallo, Alex+5 others

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Original post on February 9, 2026 14:20 UTC

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Last reply on February 17, 2026 07:39 UTC

bitcoin-dev

  • The proposal suggests enhancing Bitcoin's security against quantum threats using algorithm agility.

  • It introduces a dual signature system with a primary and a secondary, more secure algorithm.

  • This aims to ensure Bitcoin's reliability as a long-term investment by mitigating future cryptographic risks.

Addressing remaining points on BIP 54

14 replies

By Antoine Poinsot

Involving Antoine Riard, Matt Corallo+3 others

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Original post on December 30, 2025 15:59 UTC

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Last reply on February 12, 2026 03:57 UTC

bitcoin-dev

  • Luke Dashjr criticizes BIP 54, citing missed ASIC optimization with nLockTime usage.

  • Jeremy Rubin suggests a sparse Merkle tree over limiting transaction sizes for smart contracts.

  • Consensus prefers pragmatic solutions, avoiding drastic protocol changes for ecosystem stability.

The limitations of cryptographic agility in Bitcoin

10 replies

By Pieter Wuille

Involving Light, Antoine Poinsot+6 others

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Original post on February 13, 2026 16:20 UTC

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Last reply on February 17, 2026 20:04 UTC

bitcoin-dev

  • The discussion explored cryptographic agility's impact on Bitcoin's security and adaptability.

  • Concerns were raised about individual cryptographic choices affecting Bitcoin's collective value and security.

  • The conversation highlighted the need for consensus on cryptographic updates to ensure network security.

Great Consensus Cleanup Revival

90 replies

By AntoineP

Involving ajtowns, sjors+14 others

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Original post on March 24, 2024 19:53 UTC

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Last reply on February 13, 2026 21:31 UTC

delvingbitcoin

  • The analysis suggests improvements for Bitcoin, highlighting a fix for the timewarp vulnerability.

  • It proposes solutions for non-SegWit transactions and merkle root computation issues to enhance security.

  • Community debate surrounds block size reduction, with calls for technical standardization to boost efficiency.

SuperScalar: Laddered Timeout-Tr - ee-StructuredDecker-Wattenhofer Factories

33 replies

By ZmnSCPxj

Involving ariard, t-bast+3 others

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Original post on September 16, 2024 20:08 UTC

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Last reply on February 13, 2026 16:30 UTC

delvingbitcoin

  • The SuperScalar mechanism enhances Bitcoin Lightning Network by facilitating efficient offchain liquidity allocation.

  • It employs Decker-Wattenhofer mechanisms, timeout trees, and laddering strategies for secure, scalable solutions.

  • Practical deployment considerations include incentivizing user activity and optimizing liquidity allocation responsiveness.

Major BIP 360 Update

21 replies

By cryptoquick

Involving sipa, ajtowns+8 others

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Original post on December 19, 2025 20:46 UTC

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Last reply on February 13, 2026 23:02 UTC

delvingbitcoin

  • Ethan Heilman and colleagues have rewritten BIP 360 for clarity and strategy against quantum risks.

  • The revision proposes a "Pay-to-Tapscript-Hash" to protect Bitcoin from quantum computing vulnerabilities.

  • It adds technical details and invites community review to enhance Bitcoin's quantum resistance efforts.

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