Paper 2026/401 Original: eprint.iacr.org/2026/401 ↗

NIROPoK-Based Post-Quantum Sidechain Design on Ethereum

Hassan Khodaiemehr
Khadijeh Bagheri
Saeid Yazdinejad
Chen Feng
Abstract

This paper presents a pioneering approach to constructing sidechains on the Ethereum network with a focus on post-quantum security. Our framework integrates a novel quantum-resistant version of a non-interactive random oracle proof of knowledge (NIROPoK) scheme, alongside a quantum-resistant proof-of-stake mechanism and a post-quantum bridge based on the Dilithium digital signature scheme. By harnessing these advanced cryptographic techniques, we establish a robust defense against quantum computing threats while ensuring enhanced privacy for blockchain transactions. By conducting a thorough analysis and implementing our approach, we demonstrate the feasibility and effectiveness of creating quantum-resistant sidechains within the Ethereum ecosystem. Our proposed sidechain is also capable of securing Ethereum transactions from quantum threats using Ethereum’s current architecture and security measures.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2026-02-26: last updated
2026-02-26: published
Short URL
https://ia.cr/2026/401
License
https://creativecommons.org/licenses/by-nc-nd/4.0/

BibTeX

@misc{cryptoeprint:2026/401,
      author = {Hassan Khodaiemehr and Khadijeh Bagheri and Saeid Yazdinejad and Chen Feng},
      title = {NIROPoK-Based Post-Quantum Sidechain Design on Ethereum},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/401},
      year = {2026},
      url = {https://eprint.iacr.org/2026/401}
}
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