162 citations · 293 across the 8 of their papers we have counts for
7 papers · 1 filter
Complex domain approach for reversible data hiding and homomorphic encryption: General framework and application to dispersed data
David Megias
Ensuring the trustworthiness of data from distributed and resource-constrained environments, such as Wireless Sensor Networks or IoT devices, is critical. Existing Reversible Data…
Real-world actor-based image steganalysis via classifier inconsistency detection
Daniel Lerch-Hostalot, David Megías
In this paper, we propose a robust method for detecting guilty actors in image steganography while effectively addressing the Cover Source Mismatch (CSM) problem, which arises when…
ZIRCON: Zero-watermarking-based approach for data integrity and secure provenance in IoT networks
Omair Faraj, David Megías, Joaquin Garcia-Alfaro
The Internet of Things (IoT) is integrating the Internet and smart devices in almost every domain such as home automation, e-healthcare systems, vehicular networks, industrial cont…
Detection of Classifier Inconsistencies in Image Steganalysis
Daniel Lerch-Hostalot, David Megías
In this paper, a methodology to detect inconsistencies in classification-based image steganalysis is presented. The proposed approach uses two classifiers: the usual one, trained w…
PSUM:Peer-to-peer multimedia content distribution using collusion-resistant fingerprinting
Amna Qureshi, David Megías, Helena Rifà-Pous
The use of peer-to-peer (P2P) networks for multimedia distribution has spread out globally in recent years. The mass popularity is primarily driven by cost-effective distribution o…
Collusion-resistant and privacy-preserving P2P multimedia distribution based on recombined fingerprinting
David Megías, Amna Qureshi
Recombined fingerprints have been suggested as a convenient approach to improve the efficiency of anonymous fingerprinting for the legal distribution of copyrighted multimedia cont…
Individual Differential Privacy: A Utility-Preserving Formulation of Differential Privacy Guarantees
Jordi Soria-Comas, Josep Domingo-Ferrer, David Sánchez +1
Differential privacy is a popular privacy model within the research community because of the strong privacy guarantee it offers, namely that the presence or absence of any individu…