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Current LLM-based frameworks for text anonymization usually rely on remote API services from powerful LLMs, which creates an inherent privacy paradox: users must disclose the raw data to untrusted third parties for guaranteed privacy…

Cryptography and Security · Computer Science 2026-04-14 Donghang Duan , Xu Zheng , Yuefeng He , Chong Mu , Leyi Cai , Lizong Zhang

Implicit authentication (IA) transparently authenticates users by utilizing their behavioral data sampled from various sensors. Identifying the illegitimate user through constantly analyzing current users' behavior, IA adds another layer of…

Cryptography and Security · Computer Science 2021-10-07 Yingyuan Yang , Xueli Huang , Jiangnan Li , Jinyuan Sun

Advancements in communication and information tech birthed the Smart Grid, optimizing energy and data transmission. Yet, user privacy is at risk due to frequent data collection. Existing privacy schemes face vulnerability with quantum…

Cryptography and Security · Computer Science 2024-04-29 Saleh Darzi , Bahareh Akhbari , Hassan Khodaiemehr

Metaverse in general holds a potential future for cyberspace. At the beginning of Web 2.0, it was witnessed that people were signing in with various pseudonyms or 'nyms', risking their online identities by increasing presence of fake…

Cryptography and Security · Computer Science 2023-01-06 Sibi Chakkaravarthy Sethuraman , Aditya Mitra , Anisha Ghosh , Gautam Galada , Anitha Subramanian

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

The management of identities on the Internet has evolved from the traditional approach (where each service provider stores and manages identities) to a federated identity management system (where the identity management is delegated to a…

Cryptography and Security · Computer Science 2016-12-07 Muhammad Rizwan Asghar , Michael Backes , Milivoj Simeonovski

Attribute-Based Encryption (ABE) has emerged as an information-centric public-key cryptographic system which allows a data owner to share data, according to access policy, with multiple data users based on the attributes they possess,…

Cryptography and Security · Computer Science 2020-02-12 Ehsan Meamari , Hao Guo , Chien-Chung Shen , Rui Zhang

Anonymous Identity Based Encryption (AIBET) scheme allows a tracer to use the tracing key to reveal the recipient's identity from the ciphertext while keeping other data anonymous. This special feature makes AIBET a promising solution to…

Cryptography and Security · Computer Science 2021-11-11 Ngoc Ai Van Nguyen , Minh Thuy Truc Pham

Although the bulk of the research in privacy and statistical disclosure control is designed for static data, more and more data are often collected as continuous streams, and extensions of popular privacy tools and models have been proposed…

Cryptography and Security · Computer Science 2024-02-27 Nicolas Ruiz

The rapid development of Internet of Things (IoT) technology, which is an inter connection of networks through an insecure public channel i.e. Internet demands for authenticating the remote user trying to access the secure network…

Cryptography and Security · Computer Science 2014-01-08 Vorugunti Chandra Sekhar , Mrudula Sarvabhatla

Although the bulk of the research in privacy and statistical disclosure control is designed for cross-sectional data, i.e. data where individuals are observed at one single point in time, longitudinal data, i.e. individuals observed over…

Methodology · Statistics 2025-08-15 Nicolas Ruiz

With the increasing number of connected devices and complex networks involved, current domain-specific security techniques become inadequate for diverse large-scale Internet of Things (IoT) systems applications. While cross-domain…

Networking and Internet Architecture · Computer Science 2025-01-08 Xiaoyu Ma , Fang Fang , Xianbin Wang

Self-Sovereign Identity (SSI) is a new distributed method for identity management, commonly used to address the problem that users are lack of control over their identities. However, the excessive pursuit of self-sovereignty in the most…

Cryptography and Security · Computer Science 2022-06-13 Qiuyun Lyu , Shaopeng Cheng , Hao Li , Junliang Liu , Yanzhao Shen , Zhen Wang

We present the first quantum anonymous notification (QAN) protocol that introduces anonymity and paves the way for anonymous secure quantum communication in quantum networks. QAN protocol has applications ranging from multiparty quantum…

Quantum Physics · Physics 2020-07-23 Awais Khan , Junaid ur Rehman , Hyundong Shin

We propose a quantum key distribution protocol with quantum based user authentication. Our protocol is the first one in which users can authenticate each other without previously shared secret and then securely distribute a key where the…

Quantum Physics · Physics 2007-05-23 Hwayean Lee , Jongin Lim , HyungJin Yang

Wireless sensor networks consist of a large number of distributed sensor nodes so that potential risks are becoming more and more unpredictable. The new entrants pose the potential risks when they move into the secure zone. To build a door…

Cryptography and Security · Computer Science 2019-03-29 Tran Khanh Dang , Khanh T. K. Tran

On-chain crowdsourcing leverages blockchain's decentralization, transparency, and tamper-resistance to build trustworthy and verifiable Web3 crowdsourced services. However, existing decentralized reputation frameworks do not reconcile…

Cryptography and Security · Computer Science 2026-05-20 Mouhamed Amine Bouchiha , Mourad Rabah , Ronan Champagnat , Abdelaziz Amara Korba , Yacine Ghamri-Doudane

Anonymity is a fundamental cryptographic primitive that hides the identities of both senders and receivers during message transmission over a network. Classical protocols cannot provide information-theoretic security for such task, and…

Quantum Physics · Physics 2025-12-25 Srijani Das , Manasi Patra , Tuhin Paul , Anish Majumdar , Ramij Rahaman

Sharing multi-partite quantum entanglement between parties allows for diverse secure communication tasks to be performed. Among them, conference key agreement (CKA), an extension of key distribution to multiple parties, has received much…

Quantum Physics · Physics 2023-09-25 Jarn de Jong , Frederik Hahn , Jens Eisert , Nathan Walk , Anna Pappa

This paper addresses privacy protection in decentralized Artificial Intelligence (AI) using Confidential Computing (CC) within the Atoma Network, a decentralized AI platform designed for the Web3 domain. Decentralized AI distributes AI…

Cryptography and Security · Computer Science 2024-10-21 Dayeol Lee , Jorge António , Hisham Khan