Author

Khadijeh Bagheri

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Preprint Oct 2026

SILMARILS-MV: Information-Theoretically Secure Multi-Verifier Signatures with Dealer-Free Key Issuance and Linear Aggregation for Permissioned Blockchains

Permissioned blockchains authenticate transactions, votes and quorum certificates with computationally secure signatures, and post-quantum replacements inflate consensus traffic by orders of magnitude. Information-theoretic alternatives have required a trusted authority, quantum channels, per-signature interaction, or...

Khadijeh Bagheri, Hassan Khodaiemehr, Feng-Rong-Zhang-Xiu-Qing Chen · 0 citations

Preprint Oct 2026

PQ-Vault: Provably Quantum-Safe Asset Custody for Unmodified Ethereum

A quantum computer could recover the key of any Ethereum account whose public key appears on chain. We prove that no sidechain or bridge that leaves Ethereum's rules unchanged can protect such accounts: their funds must move into a contract whose release condition relies only on quantum-safe primitives. We design \emph...

Hassan Khodaiemehr, Khadijeh Bagheri, Feng-Rong-Zhang-Xiu-Qing Chen · 0 citations

Preprint Oct 2026

Rateless Nested Lattice Codes for Secure Cooperative V2X Broadcast over Fading and Erasure Channels

Vehicle-to-everything (V2X) sidelink and uplink broadcast must deliver safety-critical and application-layer data reliably under fast time-varying fading, intermittent packet erasures, and exposure to passive eavesdroppers. Fixed-rate physical-layer codes are poorly matched to these conditions because link quality and...

Pegah Sharifi, Hassan Khodaiemehr, Khadijeh Bagheri et al. · 0 citations