What question did this study set out to answer?

The aim is to develop a dual-strategy framework for blockchain systems that are resilient to quantum computing threats.

March 25, 2026Open Access

Post Quantum Chain and the Ephemeral Multisig Protocol: A Dual-Strategy Framework for Quantum-Resilient Blockchain Systems

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The aim is to develop a dual-strategy framework for blockchain systems that are resilient to quantum computing threats.
Analyzed the vulnerability of ECDSA under quantum computing using Shor's algorithm.
Reviewed NIST's post-quantum standards for secure cryptography.
Proposed an ephemeral multisig protocol to enhance security during the migration phase.
Identified the critical exposure of billions in digital assets during the quantum gap.
Demonstrated that adopting post-quantum standards is essential to protect against potential attacks.
Suggested that implementing the dual-strategy can mitigate risks during the transition period.

Implication

This dual-strategy framework addresses quantum risks in blockchain systems, emphasizing urgent security measures for digital assets.

Abstract

Cryptographically relevant quantum computers will break ECDSA when enough Qbit are reached (the signature algorithm powering Bitcoin, Ethereum, and most blockchains) via Shor’s algorithm. NIST finalized the first post-quantum standards in 2024 (FIPS 203/ML-KEM, 204/ML-DSA, 205/SLH-DSA), but full ecosystem migration will take 5–10 years. During this “quantum gap,” billions in digital assets remain exposed to “harvest-now-decrypt-later” attacks.

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Cite This Study

yassir abdelkarim boudda (2026) studied this question.

synapsesocial.com/papers/69c37b93b34aaaeb1a67e0fd https://doi.org/10.5281/zenodo.19188560

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Implication

This dual-strategy framework addresses quantum risks in blockchain systems, emphasizing urgent security measures for digital assets.

Post Quantum Chain and the Ephemeral Multisig Protocol: A Dual-Strategy Framework for Quantum-Resilient Blockchain Systems

Key Points

Implication

Abstract

Discussion

Cite This Study

Post Quantum Chain and the Ephemeral Multisig Protocol: A Dual-Strategy Framework for Quantum-Resilient Blockchain Systems

Key Points

Implication

Abstract

Discussion

Cite This Study

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