activity
20182026
most citedInformation Theoretic Security for Broadcasting of Two Encrypted Sources under Side-Channel Attacks

9 citations · 19 across the 9 of their papers we have counts for

collaborators

9 papers

cs.IT2026

A Framework of Variable-Length Source Encryption using Mutual Information Security Criterion: Universal Coding, Strong Converse Theorem

Yasutada Oohama, Bagus Santoso

In this paper we consider the variable-length lossless source coding for discrete memoryless sources. We proposes a new encryption framework for securely transmitting codewords ove…

cs.IT2025

A Framework of Distributed Source Encryption using Mutual Information Security Criterion and the Strong Converse Theorem

Yasutada Oohama, Bagus Santoso

We reinvestigate the general distributed secure source coding based on the common key cryptosystem proposed by Oohama and Santoso (ITW 2021). They proposed a framework of distribut…

cs.IT2023

Universal Coding for Shannon Ciphers under Side-Channel Attacks

Yasutada Oohama, Bagus Santoso

We study the universal coding under side-channel attacks posed and investigated by Oohama and Santoso (2022). They proposed a theoretical security model for Shannon cipher system u…

cs.CR2022★ 2 cited

Three-Pass Identification Scheme Based on MinRank Problem with Half Cheating Probability

Bagus Santoso, Yasuhiko Ikematsu, Shuhei Nakamura +1

In Asiacrypt 2001, Courtois proposed the first three-pass zero-knowledge identification (ID) scheme based on the MinRank problem. However, in a single round of Courtois' ID scheme,…

cs.IT2022★ 1 cited

Strong Converse Theorem for Source Encryption under Side-Channel Attacks

Yasutada Oohama, Bagus Santoso

We are interested in investigating the security of source encryption with a symmetric key under side-channel attacks. In this paper, we propose a general framework of source encryp…

cs.IT2021

New Distributed Source Encryption Framework

Yasutada Oohama, Bagus Santoso

We pose and investigate the distributed secure source coding based on the common key cryptosystem. This cryptosystem includes the secrecy amplification problem for distributed encr…

cs.IT2019★ 9 cited

Information Theoretic Security for Broadcasting of Two Encrypted Sources under Side-Channel Attacks

Bagus Santoso, Yasutada Oohama

We consider the secure communication problem for broadcasting of two encrypted sources. The sender wishes to broadcast two secret messages via two common key cryptosystems. We assu…

cs.IT2018★ 1 cited

Secrecy Amplification for Distributed Encrypted Sources with Correlated Keys using Affine Encoders

Bagus Santoso, Yasutada Oohama

This paper proposed the application of post-encryption-compression (PEC) to strengthen the secrecy in the case of distributed encryption where the encryption keys are correlated to…

cs.IT2018★ 6 cited

Information Theoretic Security for Side-Channel Attacks to the Shannon Cipher System

Yasutada Oohama, Bagus Santoso

We study side-channel attacks for the Shannon cipher system. To pose side channel-attacks to the Shannon cipher system, we regard them as a signal estimation via encoded data from…