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The delay-based fingerprint embedding was recently proposed to support more users in secure media distribution scenario. In this embedding scheme, some users are assigned the same fingerprint code with only different embedding delay. The…

Multimedia · Computer Science 2008-01-07 Shiguo Lian

We propose new provable practical deterministic polynomial time algorithm for the braid Wang, Xu, Li, Lin and Wang Double shielded public key cryptosystems. We show that a linear decomposition attack based on the decomposition method…

Group Theory · Mathematics 2020-10-19 Vitaly Roman'kov

While many resource-constrained networks, such as Internet of Things (IoT) and Internet of Vehicles (IoV), are inherently distributed, the majority still rely on central servers for fast authentication and data sharing. Blockchain-based…

Cryptography and Security · Computer Science 2026-01-21 Faisal Haque Bappy , Tahrim Hossain , Raiful Hasan , Kamrul Hasan , Mohamed Younis , Tariqul Islam

Alphanumeric authentication routinely fails to regulate access to resources with the required stringency, primarily due to usability issues. Initial deployment did not reveal the problems of passwords, deep and profound flaws only emerged…

Human-Computer Interaction · Computer Science 2016-01-22 Joseph Maguire , Karen Renaud

The group identification problem asks to identify a socially qualified subgroup among a group of individuals based on their pairwise valuations. There are several different rules that can be used to determine the social qualification…

Computer Science and Game Theory · Computer Science 2022-10-03 Emil Junker

Till now, few work has been done to analyze the performances of joint fingerprint embedding and decryption schemes. In this paper, the security of the joint fingerprint embedding and decryption scheme proposed by Kundur et al. is analyzed…

Multimedia · Computer Science 2007-06-22 Shiguo Lian , Zhongxuan Liu , Zhen Ren , Haila Wang

Most of the security services in the connected world of cyber-physical systems necessitate authenticating a large number of nodes privately. In this paper, the private authentication problem is considered which consists of a certificate…

Information Theory · Computer Science 2022-09-13 Narges Kazempour , Mahtab Mirmohseni , Mohammad Reza Aref

We show a simple and easily implementable solution to the word problem for virtual braid groups.

Group Theory · Mathematics 2016-03-07 Paolo Bellingeri , Bruno Aaron Cisneros de La Cruz , Luis Paris

Authentication systems are designed to give the right person access to an organization's information system and to restrict it from the wrong person. Such systems are designed by IT professionals to protect an organization's assets (e.g.,…

Cryptography and Security · Computer Science 2015-09-04 Christopher S. Pilson , James C. McElroy

Blockchain technology has been gaining great interest from a variety of sectors, including healthcare, supply chain and cryptocurrencies. However, Blockchain suffers from its limited ability to scale (i.e. low throughput and high latency).…

Cryptography and Security · Computer Science 2021-08-13 Abdelatif Hafid , Abdelhakim Senhaji Hafid , Adil Senhaji

Lattices have many significant applications in cryptography. In 2021, the $p$-adic signature scheme and public-key encryption cryptosystem were introduced. They are based on the Longest Vector Problem (LVP) and the Closest Vector Problem…

Cryptography and Security · Computer Science 2025-03-24 Chi Zhang

In the recent past, different researchers have proposed privacy-enhancing face recognition systems designed to conceal soft-biometric attributes at feature level. These works have reported impressive results, but generally did not consider…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Dailé Osorio-Roig , Christian Rathgeb , Pawel Drozdowski , Philipp Terhörst , Vitomir Štruc , Christoph Busch

Conjugacy is not the only possible primitive for designing braid-based protocols. To illustrate this principle, we describe a Fiat--Shamir-style authentication protocol that be can be implemented using any binary operation that satisfies…

Cryptography and Security · Computer Science 2007-05-23 Patrick Dehornoy

Traditional text-based password schemes are inherently weak. Users tend to choose passwords that are easy to remember, making them susceptible to various attacks that have matured over the years. ObPwd [5] has tried to address these issues…

Cryptography and Security · Computer Science 2018-01-23 Sufian Hameed , Lamak Qaizar , Shankar Khatri

The majority of current web authentication is built on username/password. Unfortunately, password replacement offers more security, but it is difficult to use and expensive to deploy. In this paper, we propose a new mutual authentication…

Cryptography and Security · Computer Science 2014-12-10 Yassine Sadqi , Ahmed Asimi , Younes Asimi

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…

Cryptography and Security · Computer Science 2011-02-07 Mohammad Hassan Habibi , Mahmoud Gardeshi , Mahdi R. Alaghband

Local Differential Privacy (LDP) has been widely adopted to protect user privacy in decentralized data collection. However, recent studies have revealed that LDP protocols are vulnerable to data poisoning attacks, where malicious users…

Cryptography and Security · Computer Science 2025-03-07 Ting-Wei Liao , Chih-Hsun Lin , Yu-Lin Tsai , Takao Murakami , Chia-Mu Yu , Jun Sakuma , Chun-Ying Huang , Hiroaki Kikuchi

We consider the problem of secure unicast transmission between two nodes in a directed graph, where an adversary eavesdrops/jams a subset of nodes. This adversarial setting is in contrast to traditional ones where the adversary controls a…

Information Theory · Computer Science 2013-03-04 Pak Hou Che , Minghua Chen , Tracey Ho , Sidharth Jaggi , Michael Langberg

In this paper we show that cryptographic backdoors in a neural network (NN) can be highly effective in two directions, namely mounting the attacks as well as in presenting the defenses as well. On the attack side, a carefully planted…

Cryptography and Security · Computer Science 2025-09-26 Anh Tu Ngo , Anupam Chattopadhyay , Subhamoy Maitra

Recently an image encryption scheme based on a chaotic Tent map has been proposed by Li et al. This comment shows that this scheme is broken and no secure application can be found for it.

Cryptography and Security · Computer Science 2016-11-03 Alireza Jolfaei