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Recently, Li et al. [Phys. Rev. A, 82(2), 022303] presented two semi-quantum secret sharing (SQSS) protocols using GHZ-like states. The proposed schemes are rather practical because only the secret dealer requires to equip with advanced…

Quantum Physics · Physics 2011-11-10 Jason Lin , Chun-Wei Yang , Chia-Wei Tsai , Tzonelih Hwang

Nowadays, a large amount of user privacy-sensitive data is outsourced to the cloud server in ciphertext, which is provided by the data owners and can be accessed by authorized data users. When accessing data, the user should be assigned…

Cryptography and Security · Computer Science 2018-11-19 Xueyan Liu , Zhitao Guan , Xiaojiang Du , Liehuang Zhu , Zhengtao Yu , Yinglong Ma

Ensuring the effectiveness of search queries while protecting user privacy remains an open issue. When an Information Retrieval System (IRS) does not protect the privacy of its users, sensitive information may be disclosed through the…

Information Retrieval · Computer Science 2024-05-16 Francesco Luigi De Faveri , Guglielmo Faggioli , Nicola Ferro

Information seeking process is an important topic in information seeking behavior research. Both qualitative and empirical methods have been adopted in analyzing information seeking processes, with major focus on uncovering the latent…

Information Retrieval · Computer Science 2013-04-09 Shuguang Han , Zhen Yue , Daqing He

Recent advancements in Large Language Models (LLMs) have transformed communication, yet their role in secure messaging remains underexplored, especially in surveillance-heavy environments. At the same time, many governments all over the…

Cryptography and Security · Computer Science 2025-04-15 Danilo Gligoroski , Mayank Raikwar , Sonu Kumar Jha

Fast similarity search is a key component in large-scale information retrieval, where semantic hashing has become a popular strategy for representing documents as binary hash codes. Recent advances in this area have been obtained through…

Information Retrieval · Computer Science 2019-06-04 Casper Hansen , Christian Hansen , Jakob Grue Simonsen , Stephen Alstrup , Christina Lioma

We design and develop a secret-sharing-scheme-based cyberattack detection model(S3CDM)that can detect unauthorized or illegal activities (especially insider attacks) and protect sensitive information within complex network infrastructures…

Cryptography and Security · Computer Science 2026-04-14 Chi Sing Chum , Jia Lu , Claire Tang , Xiaowen Zhang

Complex criminal investigations are often hindered by large volumes of unstructured evidence and by the semantic gap between natural language investigative intent and technical search logic. To address this challenge, we present a design…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-24 Benjamin Puhani , Kai Brehmer , Malte Prieß

This paper considers the secretive coded caching problem with shared caches in which no user must have access to the files that it did not demand. In a shared cache network, the users are served by a smaller number of helper caches and each…

Information Theory · Computer Science 2021-10-22 Elizabath Peter , K. K. Krishnan Namboodiri , B. Sundar Rajan

Both astronomy and biology are experiencing explosive growth of data, resulting in a "big data" problem that stands in the way of a "big data" opportunity for discovery. One common question asked of such data is that of approximate search…

Data Structures and Algorithms · Computer Science 2019-11-12 Najib Ishaq , George Student , Noah M. Daniels

With the recent explosion in the size and complexity of source codebases and software projects, the need for efficient source code search engines has increased dramatically. Unfortunately, existing information retrieval-based methods fail…

Software Engineering · Computer Science 2021-09-27 Muhammad Khalifa

Symmetric searchable encryption (SSE) for geo-textual data has attracted significant attention. However, existing schemes rely on task-specific, incompatible indices for isolated specific secure queries (e.g., range or k-nearest neighbor…

Databases · Computer Science 2026-02-25 Zhen Lv , Cong Cao , Hongwei Huo , Jiangtao Cui , Yanguo Peng , Hui Li , Yingfan Liu

To ensure the secure transmission of data, cryptography is treated as the most effective solution. Cryptographic key is an important entity in this procedure. In general, randomly generated cryptographic key (of 256 bits) is difficult to…

Cryptography and Security · Computer Science 2018-05-23 Rudresh Dwivedi , Somnath Dey , Mukul Anand Sharma , Apurv Goel

Deep unsupervised hashing has been appreciated in the regime of image retrieval. However, most prior arts failed to detect the semantic components and their relationships behind the images, which makes them lack discriminative power. To…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Qinghong Lin , Xiaojun Chen , Qin Zhang , Shaotian Cai , Wenzhe Zhao , Hongfa Wang

Decipherment of historical ciphers is a challenging problem. The language of the target plaintext might be unknown, and ciphertext can have a lot of noise. State-of-the-art decipherment methods use beam search and a neural language model to…

Computation and Language · Computer Science 2021-06-03 Nada Aldarrab , Jonathan May

Advanced Encryption Standard (AES) is one of the most widely used symmetric cipher for the confidentiality of data. Also it is used for other security services, viz. integrity, authentication and key establishment. However, recently,…

Cryptography and Security · Computer Science 2025-06-02 Ankush Soni , Sanjay K. Sahay , Parit Mehta

While several self-indexes for highly repetitive texts exist, developing a practical self-index applicable to real world repetitive texts remains a challenge. ESP-index is a grammar-based self-index on the notion of edit-sensitive parsing…

Data Structures and Algorithms · Computer Science 2014-04-29 Yoshimasa Takabatake , Yasuo Tabei , Hiroshi Sakamoto

How to construct an ideal multi-secret sharing scheme for general access structures is difficult. In this paper, we solve an open problem proposed by Spiez et al.recently [Finite Fields and Their Application, 2011(17) 329-342], namely to…

Cryptography and Security · Computer Science 2012-12-27 Yun Song , Zhihui Li

Self-sovereign Identity (SSI) powered by distributed ledger technologies enables more flexible and faster digital identification workflows, while at the same time limiting the control and influence of central authorities. However, a global…

Cryptography and Security · Computer Science 2019-09-09 Zoltán András Lux , Felix Beierle , Sebastian Zickau , Sebastian Göndör

Quantum secret sharing (QSS) schemes without entanglement have huge advantages in scalability and are easier to realize as they only require sequential communications of a single quantum system. However, these schemes often come with…

Quantum Physics · Physics 2019-12-04 Changbin Lu , Fuyou Miao , Junpeng Hou , Wenchao Huang , Yan Xiong