Bitcoin TLDR

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

By Ethan Heilman

bitcoin-dev

Involving Matt Corallo, Alex+4 others

Original post on February 9, 2026 14:20 UTC

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

bitcoin-dev

Involving Antoine Riard, Matt Corallo+3 others

Original post on December 30, 2025 15:59 UTC

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

bitcoin-dev

Involving Light, Antoine Poinsot+3 others

Original post on February 13, 2026 16:20 UTC

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.

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