谛听Diting Lab

Crypto & Blockchain · Tue, Oct 6, 2026

Bitcoin, Ethereum, stablecoins, DeFi, smart contracts, scaling and consensus.

IACR ePrint Applications

The Post-Quantum Cost of Garbled-Circuit Bitcoin Bridges

In briefCosts of Garbled-Circuit Bitcoin Bridges in a Post-Quantum Setting

SummaryThis paper examines recent Bitcoin bridge designs that verify succinct proofs to process withdrawals, and assesses the post-quantum vulnerability of their cryptographic components. It compares the costs of secure alternatives, finding that post-quantum proving systems can yield smaller circuits than the current pairing-based baseline but require significantly larger proofs that need multiple Bitcoin blocks to encode. The authors suggest future research directions to improve proof efficiency, circuit representations, and input encodings.

Mukesh Tiwari, Aaron Feickert

IACR ePrint Cryptographic protocols

StOMR: Stateful Oblivious Message Retrieval

In briefStOMR: Stateful Oblivious Message Retrieval (a privacy-preserving way to fetch messages)

SummaryThe paper introduces stateful oblivious message retrieval (OMR), a model in which senders and receivers keep lightweight private state to communicate anonymously. It presents StOMR, a protocol that greatly reduces the size of sender signals compared with prior approaches. The authors also propose an OMR Key Encapsulation Mechanism (OMR-KEM) that lets users privately establish shared state without out-of-band channels. Implemented in C++, StOMR is reported to keep detector performance while producing signals about 550×, 650×, and 178× smaller than PerfOMR, SophOMR, and InstantOMR.

Charles Gouert, Keewoo Lee, Dimitris Mouris et al.

arXiv cs.CR

BVI: Lightweight, Data-Centric Blockchain-Based Verification of Identity Claims

In briefBVI: A lightweight, data-centric blockchain method for verifying caller identity claims

SummaryThis paper proposes BVI, a system that lets a call recipient check whether the caller holds a credential a registered organisation issued for that specific call. The organisation's records, authorised channels and revocation status are kept on a public ledger, while all decision logic runs on the recipient's handset. The authors define ten attack classes, compare coverage against alternatives, and report that 27 automated scenario tests on isolated contract fixtures all pass. They also give per-session anchoring gas costs and path simulation results.

Harshith Pothapala, Gagandeep Singh, Samudi Amarasinghe et al.

arXiv cs.AI

When Does AI Supervision Help? A Role-Aware Study of Network Fraud Decision Management with Blockchain Auditability

In briefWhen Does AI Supervision Help? Role-Aware Network Fraud Decisions with Blockchain Audits

SummaryThis paper asks whether adding a second AI component to supervise a primary network-fraud decision actually improves outcomes or only adds operational burden. The authors propose a Decider-Supervisor framework with blockchain auditability and compare four configurations across varied traffic mixes and review capacities. They conclude that the value of AI supervision depends on role assignment, calibration, escalation policy, traffic composition, and lifecycle controls, not merely on having a second model.

Saviz Changizi, Nasibeh Mohammadzadeh, Mohammad Shojafar et al.