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Cryptology ePrint Archive

Fast Isogeny Evaluation on Binary Curves Quick Draw Queries: Lightweight Searchable Public-key Ciphertexts with Hidden Structures via Non-Interactive Key Exchange A Constructive Treatment of Authentication Boolean Arithmetic over $\mathbb{F}_2$ from Group Commutators HAWK with Hint: Algebraic Key Recovery from Side-Channel Leakage Post-Quantum Secure k-Times Traceable Ring Signature A Key Schedule Design and Evaluation under Boundary Round-Key Leakage 2G2T: Constant-Size, Statistically Sound MSM Outsourcing Proximity Signatures Breaking Optimized HQC: The First Cache-Timing Full Decryption Oracle Key-Recovery Attack in Post-Quantum Cryptography Efficient Partially Blind Signatures from Isogenies Evaluating PQC KEMs, Combiners, and Cascade Encryption via Adaptive IND-CPA Testing Using Deep Learning High-Throughput Side-Channel-Protected Stream Cipher Hardware for 6G Systems Efficient e = 3 Threshold RSA via Integer Coordinates for Intel SGX Zeal: PIR for Non-Cooperative Databases VEIL: Lightweight Zero-Knowledge for Hash-Based Multilinear Proof Systems Witness-Indistinguishable Arguments of Knowledge and One-Way Functions The many faces of Schnorr: a touch-up Open Problems in List Decoding and Correlated Agreement Compressed Key Exchange Protocol from Orientations of Large Discriminant Using AVX-512 SPLASH: SPeculative Leakage-Adaptive Secure Hardware An Efficient Identity-Based Blind Signature Scheme from SM9 Efficient Batch Threshold Encryption Using Partial Fraction Techniques A note on the Unsuitability of LIGA for Linkable Ring Signatures: The perils of non-commutativity Verification Facade: Masquerading Insecure Cryptographic Implementations as Verified Code Cryptographic Implications of Worst-Case Hardness of Time-Bounded Kolmogorov Complexity Efficient Merkle-Tree Consistent Accumulator FLOSS: Fast Linear Online Secret-Shared Shuffling Which Privacy Blanket is Optimal in the Shuffle Model? 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Block Circulant Codes for Ethereum PeerDAS
Birenjith Sasidharan, Indian Institute of Technology Palakkad, M · 2026-04-11 · via Cryptology ePrint Archive

Paper 2026/708

Block Circulant Codes for Ethereum PeerDAS

Emanuele Viterbo, Monash University

Dankrad Feist, Ethereum Research

Abstract

In this report, we describe how block circulant (BC) codes can serve as an alternative to one-dimensional (1D) and two-dimensional (2D) Reed–Solomon (RS) codes in the Ethereum PeerDAS protocol. We begin by reviewing the implementation of 1D RS codes in PeerDAS and then present efficient encoding and reconstruction algorithms for BC codes, developed within the same implementation framework as the respective 1D RS algorithms. The proposed encoding algorithm also permits a graceful integration of KZG commitment scheme. Finally, we evaluate and compare the performance of BC codes in terms of code rate, stopping rate, and the size of the local codes they contain, against both 1D and 2D RS codes.

BibTeX 

@misc{cryptoeprint:2026/708,
      author = {Birenjith Sasidharan and Emanuele Viterbo and Dankrad Feist},
      title = {Block Circulant Codes for Ethereum {PeerDAS}},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/708},
      year = {2026},
      url = {https://eprint.iacr.org/2026/708}
}

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