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Linear feedback shift registers (LFSRs) are used to generate secret keys in stream cipher cryptosystems. There are different kinds of key-stream generators like filter generators, combination generators, clock-controlled generators, etc.…

数论 · 数学 2025-07-25 Soniya Takshak , Rajendra Kumar Sharma

In this paper, we propose and evaluate a method for generating key-dependent feedback configurations (KDFC) for $\sigma$-LFSRs. $\sigma$-LFSRs with such configurations can be applied to any stream cipher that uses a word-based LFSR. Here, a…

密码学与安全 · 计算机科学 2021-03-03 Subrata Nandi , Srinivasan Krishnaswamy , Behrouz Zolfaghari , Pinaki Mitra

Simple authentication protocols based on conventional physical unclonable function (PUF) are vulnerable to modeling attacks and other security threats. This paper proposes an arbiter PUF based on a linear feedback shift register…

密码学与安全 · 计算机科学 2025-05-19 Yao Wang , Xue Mei , Zhengtai Chang , Wenbing Fan , Benqing Guo , Zhi Quan

Recent work using Fully Homomorphic Encryption (FHE) has made non-interactive privacy-preserving inference of deep Convolutional Neural Networks (CNN) possible. However, the performance of these methods remain limited by their heavy…

密码学与安全 · 计算机科学 2026-02-10 Eduardo Chielle , Manaar Alam , Jinting Liu , Jovan Kascelan , Michail Maniatakos

Password security plays a crucial role in cybersecurity, yet traditional password strength meters, which rely on static rules like character-type requirements, often fail. Such methods are easily bypassed by common password patterns (e.g.,…

密码学与安全 · 计算机科学 2025-11-14 Muhammed El Mustaqeem Mazelan , Noor Hazlina Abdul , Nouar AlDahoul

Linear Finite State Machines (LFSMs) are particular primitives widely used in information theory, coding theory and cryptography. Among those linear automata, a particular case of study is Linear Feedback Shift Registers (LFSRs) used in…

密码学与安全 · 计算机科学 2015-03-17 François Arnault , Thierry Berger , Marine Minier , Benjamin Pousse

Cyber-physical systems are prone to sensor attacks that can compromise safety. A common approach to synthesizing controllers robust to sensor attacks is secure state reconstruction (SSR) -- but this is computationally expensive, hindering…

系统与控制 · 电气工程与系统科学 2025-03-03 Xiao Tan , Pio Ong , Paulo Tabuada , Aaron D. Ames

Wireless Sensor Networks (WSNs) are a cutting-edge domain in the field of intelligent sensing. Due to sensor failures and energy-saving strategies, the collected data often have massive missing data, hindering subsequent analysis and…

机器学习 · 计算机科学 2025-04-23 Chengjun Yu , Yixin Ran , Yangyi Xia , Jia Wu , Xiaojing Liu

Motivated by the growing use of artificial intelligence (AI) tools in control design, this paper analyses the intersection between results from gradient methods for the model-free linear quadratic regulator (LQR), and linear feedforward…

系统与控制 · 电气工程与系统科学 2025-05-27 Arthur Castello B. de Oliveira , Milad Siami , Eduardo D. Sontag

With the growing deployment of LLMs in daily applications like chatbots and content generation, efforts to ensure outputs align with human values and avoid harmful content have intensified. However, increasingly sophisticated jailbreak…

密码学与安全 · 计算机科学 2025-06-10 Cheng Qian , Hainan Zhang , Lei Sha , Zhiming Zheng

Recognition systems are commonly designed to authenticate users at the access control levels of a system. A number of voice recognition methods have been developed using a pitch estimation process which are very vulnerable in low Signal to…

声音 · 计算机科学 2020-09-08 Aman Chadha , Divya Jyoti , M. Mani Roja

Sign-based algorithms (e.g. signSGD) have been proposed as a biased gradient compression technique to alleviate the communication bottleneck in training large neural networks across multiple workers. We show simple convex counter-examples…

机器学习 · 计算机科学 2019-05-30 Sai Praneeth Karimireddy , Quentin Rebjock , Sebastian U. Stich , Martin Jaggi

While Large Language Models (LLMs) have achieved remarkable progress, they remain vulnerable to jailbreak attacks. Existing methods, primarily relying on discrete input optimization (e.g., GCG), often suffer from high computational costs…

计算与语言 · 计算机科学 2026-01-09 Wenpeng Xing , Mohan Li , Chunqiang Hu , Haitao Xu , Ningyu Zhang , Bo Lin , Meng Han

Federated learning (FL) enables collaborative model training across distributed nodes without exposing raw data, but its decentralized nature makes it vulnerable in trust-deficient environments. Inference attacks may recover sensitive…

机器学习 · 计算机科学 2025-11-04 Guanjie Cheng , Mengzhen Yang , Xinkui Zhao , Shuyi Yu , Tianyu Du , Yangyang Wu , Mengying Zhu , Shuiguang Deng

Adversarial examples to speaker recognition (SR) systems are generated by adding a carefully crafted noise to the speech signal to make the system fail while being imperceptible to humans. Such attacks pose severe security risks, making it…

音频与语音处理 · 电气工程与系统科学 2024-10-28 Sonal Joshi , Jesús Villalba , Piotr Żelasko , Laureano Moro-Velázquez , Najim Dehak

In recent years, Large Language Models (LLMs) have shown great capability in processing graph tasks such as fraud detection. However, most existing methods rely heavily on rich text attributes, which poses difficulties for this domain due…

人工智能 · 计算机科学 2026-05-28 Zhixing Zuo , Huilin He , Jiasheng Wu , Dawei Cheng

Federated learning (FL) faces challenges in ensuring both privacy and communication efficiency, particularly in resource-constrained environments such as Internet of Things (IoT) and edge networks. While sign-based methods, such as sign…

机器学习 · 计算机科学 2025-11-25 Hyeong-Gun Joo , Songnam Hong , Seunghwan Lee , Dong-Joon Shin

Stream ciphers play an important role in those applications where high throughput remains critical and resources are very restricted e.g. in Europe and North America, A5/1 is widely used stream cipher that ensure confidentiality of…

密码学与安全 · 计算机科学 2013-06-24 Ashish Jain , Narendra S. Chaudhari

Large language models frequently commit unrecoverable reasoning errors mid-generation: once a wrong step is taken, subsequent tokens compound the mistake rather than correct it. We introduce $\textbf{Latent Phase-Shift Rollback}$ (LPSR): at…

机器学习 · 计算机科学 2026-04-21 Manan Gupta , Dhruv Kumar

Federated Learning (FL) has emerged as a popular paradigm for collaborative learning among multiple parties. It is considered privacy-friendly because local data remains on personal devices, and only intermediate parameters -- such as…

密码学与安全 · 计算机科学 2024-09-24 Qiongxiu Li , Lixia Luo , Agnese Gini , Changlong Ji , Zhanhao Hu , Xiao Li , Chengfang Fang , Jie Shi , Xiaolin Hu
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