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We construct a modular scheme which extends codes for wiretap channels of type I for use in wiretap channels of type II. This is done by using a concatenate and permute strategy, wherein multiple uses of the wiretap type I code are…

信息论 · 计算机科学 2019-01-21 Eric Graves , Allison Beemer

We propose a general method for semantic representation of images and other data using progressive coding. Semantic coding allows for specific pieces of information to be selectively encoded into a set of measurements that can be highly…

信号处理 · 电气工程与系统科学 2023-09-29 Eva Riherd , Raghu Mudumbai , Weiyu Xu

Network steganography conceals the transfer of sensitive information within unobtrusive data in computer networks. So-called micro protocols are communication protocols placed within the payload of a network steganographic transfer. They…

多媒体 · 计算机科学 2015-05-29 Matthias Naumann , Steffen Wendzel , Wojciech Mazurczyk , Jörg Keller

Steganography is an ancient art that encompasses various techniques of information hiding, the aim of which is to secret information into a carrier message. Steganographic methods are usually aimed at hiding the very existence of the…

密码学与安全 · 计算机科学 2013-04-23 Wojciech Mazurczyk

Image steganography is the art and science of using images as cover for covert communications. With the development of neural networks, traditional image steganography is more likely to be detected by deep learning-based steganalysis. To…

计算机视觉与模式识别 · 计算机科学 2022-03-10 Donghui Hu , Yu Zhang , Cong Yu , Jian Wang , Yaofei Wang

Image steganography is art of hiding information onto the cover image. In this proposal a transformed domain based gray scale image authentication/data hiding technique using Z transform (ZT) termed as FDSZT, has been proposed. ZTransform…

密码学与安全 · 计算机科学 2012-02-21 J. K. Mandal

This paper is on identification of classical information by the use of quantum channels. We focus on simultaneous ID codes which use measurements being useful to identify an arbitrary message. We give a direct and a converse part of the…

量子物理 · 物理学 2007-05-23 Peter Loeber

This paper investigates a joint source-channel secrecy problem for the Shannon cipher broadcast system. We suppose list secrecy is applied, i.e., a wiretapper is allowed to produce a list of reconstruction sequences and the secrecy is…

信息论 · 计算机科学 2017-07-25 Lei Yu , Houqiang Li , Weiping Li

Steganography is technique of hiding a data under cover media using different steganography tools. Image steganography is hiding of data (Text/Image/Audio/Video) under a cover as Image. This review paper presents classification of image…

密码学与安全 · 计算机科学 2025-08-28 Ms. Preeti P. Bhatt , Rakesh R. Savant

In the era of Information Technology, cyber-crime has always been a worrying issue for online users. Phishing, social engineering, and third party attacks have made people reluctant to share their personal information, even with trusted…

密码学与安全 · 计算机科学 2016-07-28 Min Yang Lee , Vahab Iranmanesh , Juan C. Quiroz

In this paper, the authors propose a new algorithm to hide data inside image using steganography technique. The proposed algorithm uses binary codes and pixels inside an image. The zipped file is used before it is converted to binary codes…

多媒体 · 计算机科学 2011-12-14 Rosziati Ibrahim , Teoh Suk Kuan

The security of private communication is increasingly at risk due to widespread surveillance. Steganography, a technique for embedding secret messages within innocuous carriers, enables covert communication over monitored channels. Provably…

密码学与安全 · 计算机科学 2026-02-16 Kaiyi Pang , Minhao Bai

Prior works have demonstrated that implicit representations trained only for reconstruction tasks typically generate encodings that are not useful for semantic tasks. In this work, we propose a method that contextualises the encodings of…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Theo W. Costain , Kejie Li , Victor A. Prisacariu

Compressed file formats are the corner stone of efficient data storage and transmission, yet their potential for representation learning remains largely underexplored. We introduce TEMPEST (TransformErs froM comPressed rEpreSenTations), a…

Steganography has proven to be one of the practical way of securing data. It is a new kind of secret communication used to hide secret data inside other innocent digital mediums. There are various algorithms for pair and matching technique.…

密码学与安全 · 计算机科学 2022-02-02 P N Priya , R Ranjitha , Yashaswini Naik , Shrilekha , Rama Moorthy H

Consider a polynomial $F$ in $m$ variables and a finite point ensemble $S=S_1 \times ... \times S_m$. When given the leading monomial of $F$ with respect to a lexicographic ordering we derive improved information on the possible number of…

信息论 · 计算机科学 2011-01-27 Olav Geil , Casper Thomsen

Steganalysis has been an important research topic in cybersecurity that helps to identify covert attacks in public network. With the rapid development of natural language processing technology in the past two years, coverless steganography…

密码学与安全 · 计算机科学 2018-10-19 Zhongliang Yang , Nan Wei , Junyi Sheng , Yongfeng Huang , Yu-Jin Zhang

In this paper, we discuss two-stage encoding algorithms capable of correcting a fraction of asymmetric errors. Suppose that the encoder transmits $n$ binary symbols $(x_1,\ldots,x_n)$ one-by-one over the Z-channel, in which a 1 is received…

信息论 · 计算机科学 2022-01-12 Alexey Lebedev , Vladimir Lebedev , Nikita Polyanskii

Motivated by signal processing, we present a new class of channel codes, called signal codes, for continuous-alphabet channels. Signal codes are lattice codes whose encoding is done by convolving an integer information sequence with a fixed…

信息论 · 计算机科学 2016-11-18 Ofir Shalvi , Naftali Sommer , Meir Feder

This paper suggests a message authentication scheme, which can be efficiently used for secure digital signature creation. The algorithm used here is an adjusted union of the concepts which underlie projective geometry and group structure on…

密码学与安全 · 计算机科学 2017-08-17 Abhinav Aggarwal