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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 seeks to enhance Bitcoin's security against quantum and classical threats.

  • It introduces a dual signature system to enable switching algorithms to mitigate risks.

  • This aim is to maintain Bitcoin's reliability as a long-term investment and medium of exchange.

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

  • BIP 54 debate reignites, with Dashjr criticizing nLockTime's extranonce embedding as an ASIC optimization loss.

  • Rubin suggests a sparse Merkle tree to avoid smart contract issues instead of limiting transaction sizes.

  • Majority prefer pragmatic approaches, seeking balance between innovation and system stability without drastic protocol changes.

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

  • Cryptographic agility in Bitcoin involves choices in cryptographic primitives for security enhancement.

  • Hypothetical FancySig introduction creates debate on its adoption due to security versus risk considerations.

  • Consensus on cryptographic updates is crucial for Bitcoin's network security and stability amidst evolving threats.

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 highlights Bitcoin's vulnerabilities and suggests improvements for security and efficiency.

  • It proposes solutions for the timewarp vulnerability and constraints on legacy transactions.

  • Community input is encouraged for resolving bugs, with debate over the block size limit's reduction.

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 liquidity without blockchain consensus changes.

  • It employs Decker-Wattenhofer mechanisms, timeout trees, and laddering for security and scalability.

  • Implementation strategies focus on incentivizing user onlineness and efficient liquidity allocation.

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, Isabel Foxen Duke, and Hunter Beast entirely rewrote BIP 360.

  • The revision introduces "Pay-to-Tapscript-Hash (P2TSH)" to enhance quantum resistance.

  • The update adds Python and Rust test vectors, inviting community review for improved Bitcoin security.

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