3 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.IT2026
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.IT2025
Exponent Function for Stationary Memoryless Channels with Input Cost at Rates above the Capacity
Yasutada Oohama
We consider the stationaly memoryless channels with input cost. We prove that for transmission rates above the capacity the correct probability of decoding tends to zero exponentia…