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Author

Kentaroh Toyoda

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Preprint Sep 2026

Transparent Identity Verification Approach Using MPC and Efficient Credential Status Handling

This work proposes a transparent and cost-effective identity verification framework based on Multi-Party Computation (MPC), which enables private off-chain code execution and produces runtime proofs anchored to a blockchain and integrates SHA3 hashing and Falcon post-quantum signatures.

Istiaque Ahmed, Shoji Kasahara, Kentaroh Toyoda et al. · 0 citations
#artificial intelligence Preprint Sep 2026

ACEA: An Adversarial Co-Evolution Arena for Head-to-Head Red-Team and Blue-Team LLM Testing

A platform that connects a pluggable red-team adapter and a pluggable blue-team adapter to a shared target LLM and scores their attack and defense rates with an LLM judge, and describes the design of ACEA and the metrics through which red and blue teams are scored head to head.

Yi-Da Shen, Kentaroh Toyoda, Alex Leung · 0 citations
Review Aug 2026

Claim-Level Confidence Calibration for Reliable Decision Making with Large Language Models

Claim-level decomposition combined with post-hoc calibration reduces expected calibration error on factual questions while exposing failure modes on adversarial false-premise questions where decision-makers most need reliable uncertainty estimates.

Toghrul Abbasli, Kentaroh Toyoda, Yuan Wang et al. · 0 citations

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