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

1 reply

By Ethan Heilman

Involving Matt Corallo, Alex+4 others

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Original post on February 9, 2026 14:20 UTC

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Last reply on February 10, 2026 23:13 UTC

bitcoin-dev

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

  • It introduces a dual signature system for Bitcoin, enabling emergency switches to a secure algorithm.

  • The dual system, supported by infrastructure updates, aims to keep Bitcoin viable long-term.

Addressing remaining points on BIP 54

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 December 30, 2025 15:59 UTC

bitcoin-dev

  • Luke Dashjr criticizes using nLockTime in coinbase for an extranonce, limiting ASIC optimization.

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

  • The consensus favors pragmatic solutions, avoiding major protocol changes while ensuring system stability.

The limitations of cryptographic agility in Bitcoin

By Pieter Wuille

Involving Light, Antoine Poinsot+3 others

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Original post on February 13, 2026 16:20 UTC

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Last reply on February 13, 2026 16:20 UTC

bitcoin-dev

  • The Bitcoin Development Mailing List discussed cryptographic agility for enhancing security.

  • Concerns were raised about the impact of individual cryptographic choices on Bitcoin's fungibility.

  • The conversation emphasized consensus for cryptographic evolution while maintaining Bitcoin's stability.

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 proposal examines Bitcoin protocol flaws, suggesting improvements for security and efficiency.

  • It highlights the timewarp vulnerability and suggests adjusting mining difficulty to enhance stability.

  • Community engagement is encouraged to address bugs, with debates around reducing block size for scalability.

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's liquidity allocation without blockchain consensus changes.

  • It integrates Decker-Wattenhofer decrementing mechanisms, timeout trees, and laddering for security and efficiency.

  • Practical deployment focuses on incentivizing online activity and optimizing tree structures for liquidity management.

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 others have rewritten BIP 360 for clarity and quantum risk mitigation.

  • The update introduces "Pay-to-Tapscript-Hash" to protect against quantum vulnerabilities.

  • New test vectors in Python and Rust are added, inviting community review for quantum resistance.

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