Results 71 to 80 of about 5,213 (200)
Concurrency 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
HTAC: Fine-Grained Policy-Hiding and Traceable Access Control in mHealth
IEEE Access, 2020 As an emerging cryptographic primitive, Ciphertext-Policy Attribute-Based Encryption (CP-ABE) is suitable for the owner to share his personal health records (PHRs) in mobile healthcare systems (mHealth).
Qi Li +5 more
doaj +1 more source
International Journal of Satellite Communications and Networking, Volume 43, Issue 3, Page 164-192, May/June 2025.ABSTRACT Quantum key distribution (QKD) allows the generation of cryptographic keys beyond the computational hardness paradigm and is befitting for secure data transmission requiring long‐term security. The communication distance of fiber‐based QKD, however, is limited to a few hundred kilometers due to the exponential scaling of signal attenuation ...
Davide Orsucci +7 more
wiley +1 more source
Ciphertext-policy attribute based encryption supporting access policy update
, 2016 Attribute-based encryption (ABE) allows one-to-many encryption with static access control. In many occasions, the access control policy must be updated and the original encryptor might be required to re-encrypt the message, which is impractical, since ...
Willy Susilo (19588021) +3 more
core
SECURITY AND PRIVACY, Volume 8, Issue 1, January/February 2025.Abstract The Internet of Things (IoT) effortlessly enables communication between items on the World Wide Web and other systems. This extensive use of IoTs has created new services and automation in numerous industries, enhancing the standard of living, especially in healthcare.
Ehtesham Safeer +5 more
wiley +1 more source
IET Blockchain, Volume 5, Issue 1, January/December 2025.This research introduces a blockchain‐based framework designed to securely share medical images, with a focus on maintaining data integrity and privacy. The system uses image compression and a deep neural network‐based subject sensitive hashing (SSH) to ensure the integrity of the feature maps, storing encrypted images on the InterPlanetary File System
Yeasir Arafat +7 more
wiley +1 more source
Security of signed ELGamal encryption
, 2005 Assuming a cryptographically strong cyclic group G of prime order q and a random hash function H, we show that ElGamal encryption with an added Schnorr signature is secure against the adaptive chosen ciphertext attack, in which an attacker can freely use
Jakobsson, Markus, Schnorr, Claus Peter
core
Group-oriented ciphertext-policy attribute-based encryption with expressive access policy
网络与信息安全学报, 2017 Based on the study of the traditional attribute-based encryption,a scheme called group-oriented ciphertext-policy attribute-based encryption was proposed.In the scheme,the access policy consists of AND-gate and OR-gate.Users were split up into different ...
Yang LI,Jiang-hua LIU,Wei WU
doaj +3 more sources
Ciphertext-policy attribute-based encryption with key-delegation abuse resistance
, 2016 Attribute-based encryption (ABE) is a promising cryptographic primitive that allows one-to-many encryption. In such a system, users' private keys are linked to their access rights.
Willy Susilo (19588021) +3 more
core
Ciphertext policy hidden access control scheme based on blockchain and supporting data sharing
Tongxin xuebao, 2022 Objectives: Although the traditional attribute-based encryption scheme achieves one-to-many access control,there are still challenges such as single point of failure,low efficiency,no support for data sharing,and privacy leakage.To solve these problems,a
Ruizhong DU, Tianhe ZHANG, Pengliang SHI
doaj +2 more sources