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We construct a new protocol for attribute-based encryption with the use of the modification of the standard secret sharing scheme. In the suggested modification of the secret sharing scheme, only one master key for each user is required…

密码学与安全 · 计算机科学 2020-11-24 M. A. Kudinov , A. A. Chilikov , E. O. Kiktenko , A. K. Fedorov

Arbitrated quantum signatures (AQS), for signing quantum message, have been proposed. It was claimed that the AQS schemes could guarantee unconditional security. However, in this paper, we show that all the presented AQS protocols are…

量子物理 · 物理学 2011-10-14 Zhiwei Sun , Ruigang Du , Dongyang Long

The widespread use of wireless sensor networks (WSNs) that are consisted of resource-constrained sensor nodes in communication with gateways in open-space environments and industries has highlighted the need for a secure yet fast…

密码学与安全 · 计算机科学 2022-07-26 Sina Baghbanijam , Hanie Sanaei , Mahdi Farajzadeh

Song \cite{Song10} proposed very recently a password-based authentication and key establishment protocol using smart cards which attempts to solve some weaknesses found in a previous scheme suggested by Xu, Zhu, and Feng \cite{XZF09}. In…

密码学与安全 · 计算机科学 2011-11-14 Juan E. Tapiador , Julio C. Hernandez-Castro , P. Peris-Lopez , John A. Clark

In 2013, Tsai et al. cryptanalyzed Yeh et al. scheme and shown that Yeh et al., scheme is vulnerable to various cryptographic attacks and proposed an improved scheme. In this poster we will show that Tsai et al., scheme is also vulnerable…

密码学与安全 · 计算机科学 2014-01-24 Vorugunti Chandra Sekhar , Mrudula Sarvabhatla

The heterogeneity of the blockchain landscape has motivated the design of blockchain protocols tailored to specific blockchains and applications that, hence, require custom security proofs. We observe that many blockchain protocols share…

密码学与安全 · 计算机科学 2025-01-30 Stephan Dübler , Federico Badaloni , Pedro Moreno-Sanchez , Clara Schneidewind

While new technologies emerge, human errors always looming. Software supply chain is increasingly complex and intertwined, the security of a service has become paramount to ensuring the integrity of products, safeguarding data privacy, and…

This paper proposes a novel, non-linear collusion attack on digital fingerprinting systems. The attack is proposed for fingerprinting systems with finite alphabet but can be extended to continuous alphabet. We analyze the error probability…

密码学与安全 · 计算机科学 2016-04-28 Jalal Etesami , Negar Kiyavash

Smart meter data aggregation protocols have been developed to address rising privacy threats against customers' consumption data. However, these protocols do not work satisfactorily in the presence of failures of smart meters or network…

密码学与安全 · 计算机科学 2024-10-28 Günther Eibl , Sanaz Taheri-Boshrooyeh , Alptekin Küpçü

This paper presents a new language called APSL for formally describing protocols to facilitate automated testing. Many real world communication protocols exchange messages whose structures are not trivial, e.g. they may consist of multiple…

软件工程 · 计算机科学 2018-04-12 Tom Tervoort , I. S. W. B. Prasetya

We consider distributed on-device learning with limited communication and security requirements. We propose a new robust distributed optimization algorithm with efficient communication and attack tolerance. The proposed algorithm has…

机器学习 · 计算机科学 2019-10-03 Cong Xie , Sanmi Koyejo , Indranil Gupta

The recent program development industries have required problem-solving abilities for engineers, especially application developers. However, AI-based education systems to help solve computer algorithm problems have not yet attracted…

计算与语言 · 计算机科学 2024-10-15 Juntae Kim , Eunjung Cho , Dongbin Na

Radio Frequency Identification (RFID) is a technology aimed at eficiently identifying and tracking goods and assets. Such identification may be performed without requiring line-of-sight alignment or physical contact between the RFID tag and…

密码学与安全 · 计算机科学 2016-11-25 Rolando Trujillo-Rasua

Among the various means of available resource protection including biometrics, password based system is most simple, user friendly, cost effective and commonly used. But this method having high sensitivity with attacks. Most of the advanced…

密码学与安全 · 计算机科学 2009-10-13 Manoj Kumar Singh

Secret-key agreement based on biometric or physical identifiers is a promising security protocol for authenticating users or devices with small chips due to its lightweight security. In previous studies, the fundamental limits of such a…

信息论 · 计算机科学 2025-03-13 Vamoua Yachongka , Hideki Yagi , Hideki Ochiai

We show that for every effective left conjugacy closed left quasigroup, there is an induced rack that retains the conjugation structure of the left translations. This means that cryptographic protocols relying on conjugacy search can be…

密码学与安全 · 计算机科学 2009-11-11 Juha Partala

We study the Approximate Nearest Neighbor (ANN) problem under a powerful adaptive adversary that controls both the dataset and a sequence of $Q$ queries. Primarily, for the high-dimensional regime of $d = \omega(\sqrt{Q})$, we introduce a…

数据结构与算法 · 计算机科学 2026-01-05 Alexandr Andoni , Themistoklis Haris , Esty Kelman , Krzysztof Onak

Recent studies on the safety alignment of large language models (LLMs) have revealed that existing approaches often operate superficially, leaving models vulnerable to various adversarial attacks. Despite their significance, these studies…

密码学与安全 · 计算机科学 2025-06-02 Jianwei Li , Jung-Eun Kim

Radio Frequency Identification (RFID) is appearing as a favorite technology for automated identification, which can be widely applied to many applications such as e-passport, supply chain management and ticketing. However, researchers have…

密码学与安全 · 计算机科学 2011-02-07 Mohammad Hassan Habibi , Mahmoud Gardeshi , Mahdi R. Alaghband

In this paper, we proposed a general framework for data poisoning attacks to graph-based semi-supervised learning (G-SSL). In this framework, we first unify different tasks, goals, and constraints into a single formula for data poisoning…

机器学习 · 计算机科学 2019-11-01 Xuanqing Liu , Si Si , Xiaojin Zhu , Yang Li , Cho-Jui Hsieh