Results 71 to 80 of about 3,960 (217)

Public-key cryptography - the RSA cryptosystem [PDF]

open access: yes, 2014
This paper‘s main goal is to deliver an accurate image on the concepts of data security and cryptography, by presenting the theory and by developing the application of a fundamental public-key cryptosystem used nowadays, namely the RSA cryptosystem.
MACRINICI, Daniel   +2 more
core  

A Secure and Robust Blockchain‐Based Medical Image Encryption Approach Using Lorenz Chaotic System

open access: yesJournal of Sensors, Volume 2026, Issue 1, 2026.
Keeping medical images confidential while transmitting is crucial, especially in an open networking environment. One effective approach is blockchain‐based encryption, which provides strong security for sensitive healthcare data. To ensure the greatest levels of medical data integrity and authenticity, our proposed scheme employs a unique Lorenz ...
Fahima Hajjej   +4 more
wiley   +1 more source

An adaptive block‐wise prediction error‐based (AdaBPE) reversible data hiding in encrypted images for medical image transmission

open access: yesCAAI Transactions on Intelligence Technology, Volume 10, Issue 5, Page 1269-1290, October 2025.
Abstract Life expectancy has improved with new‐age technologies and advancements in the healthcare sector. Though artificial intelligence (AI) and the Internet of Things (IoT) are revolutionising smart healthcare systems, security of the healthcare data is always a concern.
Shaiju Panchikkil   +4 more
wiley   +1 more source

Cryptosystem Based on Induced Group Codes

open access: yesМоделирование и анализ информационных систем, 2016
The code C on a group G, induced by the code N on a subgroup H, has the property that for decoding the code C one can use the decoder for the code N.
V. M. Deundyak, Y. V. Kosolapov
doaj   +1 more source

Comparison between the RSA cryptosystem and elliptic curve cryptography

open access: yes, 2010
In the globalization era, cryptography becomes more popular and powerful; in fact it is very important in many areas (i.e. mathematics, computer science, networks, etc).
Abdullah, Kamilah
core  

Hardware Security in the Connected World

open access: yesWIREs Data Mining and Knowledge Discovery, Volume 15, Issue 3, September 2025.
Depicts the components covered in the article. ABSTRACT The rapid proliferation of the Internet of Things (IoT) has integrated billions of smart devices into our daily lives, generating and exchanging vast amounts of critical data. While this connectivity offers significant benefits, it also introduces numerous security vulnerabilities.
Durba Chatterjee   +4 more
wiley   +1 more source

Enhancing Data Privacy and Trust in E‐Learning: A Blockchain‐Based Access Control Protocol for Cloud Educational Systems

open access: yesConcurrency and Computation: Practice and Experience, Volume 37, Issue 18-20, 30 August 2025.
ABSTRACT E‐learning systems in an educational environment designed for wireless area networks for schools, universities, and research institutions provide consistency and better retention for students, professors, and researchers. An E‐learning system is known for storing lecture documents and live video conferences that are transmitted over public ...
Ahmed A. Mawgoud   +4 more
wiley   +1 more source

Length-based cryptanalysis: the case of Thompson's group

open access: yesJournal of Mathematical Cryptology, 2007
The length-based approach is a heuristic for solving randomly generated equations in groups that possess a reasonably behaved length function. We describe several improvements of the previously suggested length-based algorithms, which make them ...
Ruinskiy Dima, Shamir Adi, Tsaban Boaz
doaj   +1 more source

Fraud Detection in Privacy Preserving Health Insurance System Using Blockchain Technology

open access: yesEngineering Reports, Volume 7, Issue 8, August 2025.
A privacy‐preserving and fraud‐detection‐enabled health insurance claim system has been proposed that addresses the dual challenges of privacy preservation and fraud detection in health insurance claims. The proposed model enables both patients and healthcare providers to submit claims securely, ensuring patient anonymity while effectively detecting ...
Md. Mazharul Islam   +4 more
wiley   +1 more source

Cryptanalysis of McEliece’s Public-Key Cryptosystem [PDF]

open access: yes, 2007
An approach is proposed for the cryptanalysis of the well-known version of McEliece's public-key cryptosystem that is based on a new iterative optimization algorithm for decoding an arbitrary linear code. The algorithm provides guaranteed correction of all error patterns with Hamming weight less than d/2, where d is the minimum distance of the code ...
Valery I. Korzhik, Andrew I. Turkin
openaire   +1 more source

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