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Identification of cyber threats is one of the essential tasks for security teams. Currently, cyber threats can be identified using knowledge organized into various formats, enumerations, and knowledge bases. This paper studies the current…

Cryptography and Security · Computer Science 2022-06-30 Lukáš Sadlek , Pavel Čeleda , Daniel Tovarňák

Various data-sharing platforms have emerged with the growing public demand for open data and legislation mandating certain data to remain open. Most of these platforms remain opaque, leading to many questions about data accuracy, provenance…

Cryptography and Security · Computer Science 2025-02-25 Linh T. Nguyen , Lam Duc Nguyen , Thong Hoang , Dilum Bandara , Qin Wang , Qinghua Lu , Xiwei Xu , Liming Zhu , Petar Popovski , Shiping Chen

A common privacy issue in traditional machine learning is that data needs to be disclosed for the training procedures. In situations with highly sensitive data such as healthcare records, accessing this information is challenging and often…

Cryptography and Security · Computer Science 2021-03-31 Pavlos Papadopoulos , Will Abramson , Adam J. Hall , Nikolaos Pitropakis , William J. Buchanan

In any given collaboration, information needs to flow from one participant to another. While participants may be interested in sharing information with one another, it is often necessary for them to establish the impact of sharing certain…

Cryptography and Security · Computer Science 2015-12-22 Nalin Asanka Gamagedara Arachchilage , Cornelius Namiluko , Andrew Martin

Data security and availability for operational use are frequently seen as conflicting goals. Research on searchable encryption and homomorphic encryption are a start, but they typically build from encryption methods that, at best, provide…

Cryptography and Security · Computer Science 2015-12-02 David Zage , Helen Xu , Thomas Kroeger , Bridger Hahn , Nolan Donoghue , Thomas Benson

Homomorphic encryption is a sophisticated encryption technique that allows computations on encrypted data to be done without the requirement for decryption. This trait makes homomorphic encryption appropriate for safe computation in…

Cryptography and Security · Computer Science 2023-05-11 Nimish Jain , Aswani Kumar Cherukuri

Random beacons-information sources that broadcast a stream of random digits unknown by anyone beforehand-are useful for various cryptographic purposes. But such beacons can be easily and undetectably sabotaged, so that their output is known…

Cryptography and Security · Computer Science 2007-05-23 Charles H. Bennett , John A. Smolin

Data sharing is ubiquitous in the metaverse, which adopts blockchain as its foundation. Blockchain is employed because it enables data transparency, achieves tamper resistance, and supports smart contracts. However, securely sharing data…

Cryptography and Security · Computer Science 2024-12-19 Liang Zhang , Zhanrong Ou , Changhui Hu , Haibin Kan , Jiheng Zhang

Electronic health record (EHR) management systems require the adoption of effective technologies when health information is being exchanged. Current management approaches often face risks that may expose medical record storage solutions to…

Cryptography and Security · Computer Science 2021-01-28 Charalampos Stamatellis , Pavlos Papadopoulos , Nikolaos Pitropakis , Sokratis Katsikas , William J Buchanan

This paper introduces a privacy-preserving distributed learning framework via private-key homomorphic encryption. Thanks to the randomness of the quantization of gradients, our learning with error (LWE) based encryption can eliminate the…

Cryptography and Security · Computer Science 2024-02-05 Guangfeng Yan , Shanxiang Lyu , Hanxu Hou , Zhiyong Zheng , Linqi Song

With rapid increase of mobile computing and wireless network linkage, the information exchange between connected systems and within groups increases heavily. Exchanging confidential information within groups via unsecured communication…

Cryptography and Security · Computer Science 2020-02-26 Peter Hillmann , Marcus Knüpfer , Tobias Guggemos , Klement Streit

Automated cyber threat detection in computer networks is a major challenge in cybersecurity. The cyber domain has inherent challenges that make traditional machine learning techniques problematic, specifically the need to learn continually…

Cryptography and Security · Computer Science 2021-04-29 Frank W. Bentrem , Michael A. Corsello , Joshua J. Palm

In the era of generative AI, ensuring the privacy of music data presents unique challenges: unlike static artworks such as images, music data is inherently temporal and multimodal, and it is sampled, transformed, and remixed at an…

Databases · Computer Science 2025-08-12 William Zerong Wang , Dongfang Zhao

Today, Internet of Things (IoT) technology is being increasingly popular which is applied in a wide range of industry sectors such as healthcare, transportation and some critical infrastructures. With the widespread applications of IoT…

Cryptography and Security · Computer Science 2019-02-12 Jingwei Liu , Ailian Ren , Lihuan Zhang , Rong Sun , Xiaojiang Du , Mohsen Guizani

Computational privacy is a property of cryptographic system that ensures the privacy of data being processed at an untrusted server. Fully Homomorphic Encryption Schemes (FHE) promise to provide such property. Contemporary FHE schemes are…

Cryptography and Security · Computer Science 2014-06-10 Sashank Dara

Secure E-voting is a challenging protocol. Several approaches based on homomorphic crypto systems, mix-nets blind signatures are proposed in the literature .But most of them need complicated homomorphic encryption which involves complicated…

Cryptography and Security · Computer Science 2016-02-18 V P Binu , Divya G Nair , A Sreekumar

Privacy, security and data governance constraints rule out a brute force process in the integration of cross-silo data, which inherits the development of the Internet of Things. Federated learning is proposed to ensure that all parties can…

Cryptography and Security · Computer Science 2024-01-23 Dongqi Cai , Tao Fan , Yan Kang , Lixin Fan , Mengwei Xu , Shangguang Wang , Qiang Yang

When working with joint collections of confidential data from multiple sources, e.g., in cloud-based multi-party computation scenarios, the ownership relation between data providers and their inputs itself is confidential information.…

Cryptography and Security · Computer Science 2020-02-14 Kilian Becher , Thorsten Strufe

Encryption provides a method to protect data outsourced to a DBMS provider, e.g., in the cloud. However, performing database operations over encrypted data requires specialized encryption schemes that carefully balance security and…

Cryptography and Security · Computer Science 2021-03-11 Masoumeh Shafieinejad , Suraj Gupta , Jin Yang Liu , Koray Karabina , Florian Kerschbaum

This work aims to provide a more secure access control in Hyperledger Fabric blockchain by combining multiple ID's, attributes, and policies with the components that regulate access control. The access control system currently used by…

Cryptography and Security · Computer Science 2022-07-05 Daan Gordijn , Roland Kromes , Thanassis Giannetsos , Kaitai Liang