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In cloud computing, storage area networks, remote backup storage, and similar settings, stored data is modified with updates from new versions. Representing information and modifying the representation are both expensive. Therefore it is…

信息论 · 计算机科学 2011-05-11 Lav R. Varshney , Julius Kusuma , Vivek K Goyal

Crafting adversarial examples can be formulated as an optimization problem. While sign-based optimizers such as I-FGSM and MI-FGSM have become the de facto standard for the induced optimization problems, there still exist several unsolved…

机器学习 · 计算机科学 2026-03-03 Wei Tao , Yang Dai , Jincai Huang , Qing Tao

Quantum digital signatures (QDSs), which utilize correlated bit strings among sender and recipients, guarantee the authenticity, integrity, and nonrepudiation of classical messages based on quantum laws. Continuous-variable (CV) quantum…

量子物理 · 物理学 2024-11-25 Yi-Fan Zhang , Wen-Bo Liu , Bing-Hong Li , Hua-Lei Yin , Zeng-Bing Chen

Code metamorphism refers to a computer programming exercise wherein the program modifies its own code (partial or entire) consistently and automatically while retaining its core functionality. This technique is often used for online…

密码学与安全 · 计算机科学 2024-11-05 Pooria Madani

The paper presents to address this challenge, we have proposed the use of Adaptive Window Positioning technique which focuses on not just the meaning of the handwritten signature but also on the individuality of the writer. This innovative…

计算机视觉与模式识别 · 计算机科学 2014-07-11 Ghazali Sulong , Anwar Yahy Ebrahim , Muhammad Jehanzeb

Partial-MDS (PMDS) codes are a family of locally repairable codes, mainly used for distributed storage. They are defined to be able to correct any pattern of $s$ additional erasures, after a given number of erasures per locality group have…

信息论 · 计算机科学 2017-07-05 Anna-Lena Horlemann-Trautmann , Alessandro Neri

While machine-generated texts (MGTs) offer great convenience, they also pose risks such as disinformation and phishing, highlighting the need for reliable detection. Metric-based methods, which extract statistically distinguishable features…

计算与语言 · 计算机科学 2026-02-10 Chenwang Wu , Yiu-ming Cheung , Shuhai Zhang , Bo Han , Defu Lian

Digital signatures are fundamental cryptographic primitives that ensure the authenticity and integrity of digital communication. However, in scenarios involving sensitive interactions -- such as e-voting or e-cash -- there is a growing need…

密码学与安全 · 计算机科学 2025-06-04 Shanu Poddar , Sweta Mishra , Tapaswini Mohanty , Vikas Srivastava , Sugata Gangopadhyay

Maximum-distance-separable (MDS) codes are a class of erasure codes that are widely adopted to enhance the reliability of distributed storage systems (DSS). In (n, k) MDS coded DSS, the original data are stored into n distributed nodes in…

信息论 · 计算机科学 2017-06-16 Sheng Guan , Haibin Kan , Xin Wang

Key substitution vulnerable signature schemes are signature schemes that permit an intruder, given a public verification key and a signed message, to compute a pair of signature and verification keys such that the message appears to be…

密码学与安全 · 计算机科学 2007-10-31 Yannick Chevalier , Mounira Kourjieh

In large-scale distributed storage systems, erasure codes are used to achieve fault tolerance in the face of node failures. Tuning code parameters to observed failure rates has been shown to significantly reduce storage cost. Such tuning of…

信息论 · 计算机科学 2020-06-05 Francisco Maturana , V. S. Chaitanya Mukka , K. V. Rashmi

Landmark correspondences are a widely used type of gold standard in image registration. However, the manual placement of corresponding points is subject to high inter-user variability in the chosen annotated locations and in the…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Loic Peter , Daniel C. Alexander , Caroline Magnain , Juan Eugenio Iglesias

The reliability of erasure-coded distributed storage systems, as measured by the mean time to data loss (MTTDL), depends on the repair bandwidth of the code. Repair-efficient codes provide reliability values several orders of magnitude…

信息论 · 计算机科学 2017-08-04 Vaneet Aggarwal , Chao Tian , Vinay A. Vaishampayan , Yih-Farn R. Chen

Anomaly detection systems aim to detect and report attacks or unexpected behavior in networked systems. Previous work has shown that anomalies have an impact on system performance, and that performance signatures can be effectively used for…

The development of large language models (LLMs) has raised concerns about potential misuse. One practical solution is to embed a watermark in the text, allowing ownership verification through watermark extraction. Existing methods primarily…

密码学与安全 · 计算机科学 2025-03-04 Yuhang Cai , Yaofei Wang , Donghui Hu , Chen Gu

This paper presents a novel coding scheme for distributed storage systems containing nodes with adversarial errors. The key challenge in such systems is the propagation of erroneous data from a single corrupted node to the rest of the…

信息论 · 计算机科学 2012-07-17 Natalia Silberstein , Ankit Singh Rawat , Sriram Vishwanath

In this paper, we propose a new signature scheme based on a punctured Reed--Muller (RM) code with random insertion, which improves the Goppa code-based signature scheme developed by Courtois, Finiasz, and Sendrier (CFS). The CFS signature…

密码学与安全 · 计算机科学 2017-11-02 Wijik Lee , Young-Sik Kim , Jong-Seon No

Data injection attacks (DIAs) pose a significant cybersecurity threat to the Smart Grid by enabling an attacker to compromise the integrity of data acquisition and manipulate estimated states without triggering bad data detection…

系统与控制 · 电气工程与系统科学 2024-11-26 Ke Sun , Iñaki Esnaola , H. Vincent Poor

Recent advancements in Generative AI and Large Language Models (LLMs) have enabled the creation of highly realistic synthetic content, raising concerns about the potential for malicious use, such as misinformation and manipulation.…

Finetuning large language models (LLMs) enables user-specific customization but introduces critical safety risks: even a few harmful examples can compromise safety alignment. A common mitigation strategy is to update the model more strongly…

机器学习 · 计算机科学 2025-12-23 ShengYun Peng , Pin-Yu Chen , Jianfeng Chi , Seongmin Lee , Duen Horng Chau