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We show the unconditional security of decoy-state method quantum cryptography with whatever intensity error pattern provided that the error is not too large. Our result immediately applies to the existing experimental data. Our result is…

量子物理 · 物理学 2013-05-29 Xiang-Bin Wang , Cheng-Zhi Peng , Jun Zhang , Jian-Wei Pan

Although there have been significant advancements in image compression techniques, such as standard and learned codecs, these methods still suffer from severe quality degradation at extremely low bits per pixel. While recent diffusion-based…

图像与视频处理 · 电气工程与系统科学 2025-09-23 Chanung Park , Joo Chan Lee , Jong Hwan Ko

Large language models now produce text indistinguishable from human writing, which increases the need for reliable provenance tracing. Multi-bit watermarking can embed identifiers into generated text, but existing methods struggle to keep…

密码学与安全 · 计算机科学 2026-02-17 Xuehao Cui , Ruibo Chen , Yihan Wu , Heng Huang

This paper is to create a practical steganographic implementation for 4-bit images.The proposed technique converts 4 bit image into 4 shaded Gray Scale image. This image will be act as reference image to hide the text. Using this grey scale…

多媒体 · 计算机科学 2014-08-17 Samir Kumar Bandyopadhyay , Indra Kanta Maitra

Vulnerability of watermarking schemes against intense signal processing attacks is generally a major concern, particularly when there are techniques to reproduce an acceptable copy of the original signal with no chance for detecting the…

多媒体 · 计算机科学 2015-01-09 Hossein Bakhshi Golestani , Shahrokh Ghaemmaghami

Visual cryptography aims to protect images against their possible illegitimate use. Thus, one can cipher, hash, or add watermarks for protecting copyright, among others. In this paper we provide a new solution to the problem of secret…

密码学与安全 · 计算机科学 2023-06-22 José Ignacio Farrán , David Cerezo

Under the emerging network coding paradigm, intermediate nodes in the network are allowed not only to store and forward packets but also to process and mix different data flows. We propose a low-complexity cryptographic scheme that exploits…

密码学与安全 · 计算机科学 2016-11-17 Joao P. Vilela , Luisa Lima , Joao Barros

Joint source-channel coding (JSCC) has achieved great success due to the introduction of deep learning (DL). Compared to traditional separate source-channel coding (SSCC) schemes, the advantages of DL-based JSCC (DJSCC) include high…

密码学与安全 · 计算机科学 2023-11-21 Jialong Xu , Bo Ai , Wei Chen , Ning Wang , Miguel Rodrigues

With the emergence of remote code execution (RCE) vulnerabilities in ubiquitous libraries and advanced social engineering techniques, threat actors have started conducting widespread fileless cryptojacking attacks. These attacks have become…

密码学与安全 · 计算机科学 2026-03-27 Said Varlioglu , Nelly Elsayed , Murat Ozer , Zag ElSayed , John M. Emmert

In continuation to earlier works where the problem of joint information embedding and lossless compression (of the composite signal) was studied in the absence \cite{MM03} and in the presence \cite{MM04} of attacks, here we consider the…

信息论 · 计算机科学 2007-07-13 Neri Merhav

In this work, we propose a method for speeding up linear regression distributively, while ensuring security. We leverage randomized sketching techniques, and improve straggler resilience in asynchronous systems. Specifically, we apply a…

信息论 · 计算机科学 2022-02-23 Neophytos Charalambides , Hessam Mahdavifar , Mert Pilanci , Alfred O. Hero

Restricted Syndrome Decoding (ResSD) is a variant of linear code decoding problem where each of the error's entries must belong to a fixed small set of values. This problem underlies the security of CROSS, a post-quantum signature scheme…

密码学与安全 · 计算机科学 2026-04-21 Étienne Burle , Aleksei Udovenko

This paper puts a new light on secure data storage inside distributed systems. Specifically, it revisits computational secret sharing in a situation where the encryption key is exposed to an attacker. It comes with several contributions:…

密码学与安全 · 计算机科学 2020-02-18 Katarzyna Kapusta , Gerard Memmi , Matthieu Rambaud

In this paper we propose a new data hiding technique. The new technique uses steganography and cryptography on images with a size of 256x256 pixels and an 8-bit grayscale format. There are design restrictions such as a fixed-size cover…

密码学与安全 · 计算机科学 2012-12-13 Francisco Rubén Castillo Soria , Gustavo Fernández Torres , Ignacio Algredo-Badillo

Traditional adaptive steganography is a technique used for covert communication with high security, but it is invalid in the case of stego images are sent to legal receivers over networks which is lossy, such as JPEG compression of…

多媒体 · 计算机科学 2021-10-19 Zhaoxia Yin , Longfei Ke

The current cybersecurity landscape is increasingly complex, with traditional Static Application Security Testing (SAST) tools struggling to capture complex and emerging vulnerabilities due to their reliance on rule-based matching.…

密码学与安全 · 计算机科学 2024-11-25 Mete Keltek , Rong Hu , Mohammadreza Fani Sani , Ziyue Li

Digital watermarking is a technique of embedding pieces of information into digital data such as text, audio, video, and still images that can be detected or extracted later to show authentication about the data. Watermark is hidden…

多媒体 · 计算机科学 2013-04-01 Nisha Sharma , Kamlesh Sharma

Steganography is the practice of encoding secret information into innocuous content in such a manner that an adversarial third party would not realize that there is hidden meaning. While this problem has classically been studied in security…

密码学与安全 · 计算机科学 2023-10-31 Christian Schroeder de Witt , Samuel Sokota , J. Zico Kolter , Jakob Foerster , Martin Strohmeier

Digital watermarking enables protection against copyright infringement of images. Although existing methods embed watermarks imperceptibly and demonstrate robustness against attacks, they typically lack resilience against geometric…

多媒体 · 计算机科学 2024-02-15 Hannes Mareen , Lucas Antchougov , Glenn Van Wallendael , Peter Lambert

We consider the problem of designing codes for distributed storage that protect user data against eavesdroppers that can gain access to network links as well as individual nodes. Our goal is to achieve weak security (also known as block…

信息论 · 计算机科学 2017-10-19 Swanand Kadhe , Alex Sprintson
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