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Domain Specific Post Quantum Signatures for Blockchains

arXiv cs.CRby Maja Lie ()1 min read3 · 2 reads
Read at arxiv.org
AI summary · grok-4.7Summaries by Vani AI

Researchers argue blockchains need domain-specific post-quantum signatures beyond NIST single-signer schemes.

An arXiv cs.CR paper argues blockchains need domain-specific post-quantum signature profiles rather than generic single-signer schemes. It formalizes transaction authorization and quorum-certificate requirements and instantiates them for Bitcoin, Ethereum, and a Sei Giga-style high-throughput BFT profile. The evaluation covers ML-DSA, SLH-DSA, Falcon/FN-DSA, HAWK, MAYO, SNOVA, UOV/QR-UOV, FAEST, SQIsign, and several aggregation-oriented schemes. The authors conclude current NIST signatures are necessary components but none is a drop-in replacement for modern public blockchain signature layers.

Key facts
  • Blockchains need consensus-profiled post-quantum authentication, not generic signatures.
  • Requirements include aggregation, downgrade resistance, and light-client consequences.
  • Designs are instantiated for Bitcoin, Ethereum, and a Sei-style BFT profile.
  • NIST single-signer schemes are necessary but not drop-in replacements.
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Tags
post-quantumcryptographyblockchainml-dsasignaturesbitcoinethereumnist
Products
BitcoinEthereumSei
Organizations
NIST

From the original article

1 min read at arxiv.org

Blockchains need more than post quantum single signer signatures. They need consensus profiled authentication objects with canonical bytes, priced invalid input rejection, stable transaction identifiers, hybrid downgrade resistance, public aggregation, merge semantics, accountable signer evidence, forward secure committee rotation, and light client consequences.

arXiv cs.CR

By Maja Lie · arxiv.org

Read the full article at arXiv cs.CR

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.