8 citations · 13 across the 5 of their papers we have counts for
4 papers · 1 filter
IoT-REX: A Secure Remote-Control System for IoT Devices from Centralized Multi-Designated Verifier Signatures
Yohei Watanabe, Naoto Yanai, Junji Shikata
IoT technology has been developing rapidly, while at the same time, notorious IoT malware such as Mirai is a severe and inherent threat. We believe it is essential to consider syst…
Security Formalizations and Their Relationships for Encryption and Key Agreement in Information-Theoretic Cryptography
Mitsugu Iwamoto, Kazuo Ohta, Junji Shikata
This paper revisits formalizations of information-theoretic security for symmetric-key encryption and key agreement protocols which are very fundamental primitives in cryptography.…
Secret Sharing Schemes Based on Min-Entropies
Mitsugu Iwamoto, Junji Shikata
Fundamental results on secret sharing schemes (SSSs) are discussed in the setting where security and share size are measured by (conditional) min-entropies. We first formalize a un…
Timed-Release Secret Sharing Scheme with Information Theoretic Security
Yohei Watanabe, Junji Shikata
In modern cryptography, the secret sharing scheme is an important cryptographic primitive and it is used in various situations. In this paper, a timed-release secret sharing scheme…