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Publications

Publications évaluées par les pairs

Energy-Efficient Adaptive Zero Trust Security for Automotive CAN Networks

Aditi Kalgi, Harrison Kurunathan, Yulliwas Ameur, Radha Reddy, Samia Bouzefrane.

FiCloud 2026, Granada, Spain, 2026

Adaptive Zero Trust security for automotive CAN networks with an emphasis on energy efficiency.

BibTeX Source / DOI HAL / texte Programme officiel

Secure k-means Clustering using Homomorphic Encryption

Rezak Aziz, Yulliwas Ameur, Vincent Audigier, Samia Bouzefrane.

ANT / EDI40 2026 - Procedia Computer Science, vol. 280, 2026

Privacy-preserving k-means clustering on homomorphically encrypted data using TFHE.

BibTeX Source / DOI HAL / texte

Artificial Intelligence and Machine Learning: Revolutionizing Supply Chain Security

Yulliwas Ameur, Malek Kraiem.

In: Securing the Digital Supply Chain: Advances, Challenges, and Solutions (Springer, Cham), 2026

How AI/ML enable predictive analytics, anomaly detection and real-time decision-making for supply chain security.

BibTeX Source / DOI HAL / texte

Advancing Blockchain Privacy: The Role of Homomorphic Encryption

Yulliwas Ameur, Idriss Taberkane, Samia Bouzefrane.

In: Intelligent Cybersecurity and Resilience for Critical Industries: Challenges and Applications (River Publishers / Routledge), 2025

Homomorphic encryption as a building block for privacy-preserving blockchain applications.

PDF sur HAL BibTeX Source / DOI HAL / texte

Developing Adaptive Homomorphic Encryption through Exploration of Differential Privacy

Yulliwas Ameur, Samia Bouzefrane, Soumya Banerjee.

Journal of Cyber Security and Mobility, 13(5), 2024

Combining homomorphic encryption with differential privacy for adaptive privacy-preserving machine learning.

BibTeX Source / DOI HAL / texte

Enhancing privacy in VANETs through homomorphic encryption in machine learning applications

Yulliwas Ameur, Samia Bouzefrane.

ANT 2024 - 15th International Conference on Ambient Systems, Networks and Technologies (Hasselt, Belgium) - Procedia Computer Science, vol. 238, 2024

Privacy-preserving machine learning for vehicular ad-hoc networks using homomorphic encryption.

PDF sur HAL BibTeX Source / DOI HAL / texte

Handling security issues by using homomorphic encryption in multi-cloud environment

Yulliwas Ameur, Samia Bouzefrane, Le Vinh Thinh.

ANT 2023 - 14th International Conference on Ambient Systems, Networks and Technologies (Leuven, Belgium) - Procedia Computer Science, vol. 220, 2023

Securing outsourced computation across multiple cloud providers with homomorphic encryption.

PDF sur HAL BibTeX Source / DOI HAL / texte

Application of Homomorphic Encryption in Machine Learning

Yulliwas Ameur, Samia Bouzefrane, Vincent Audigier.

In: Emerging Trends in Cybersecurity Applications (Springer), 2023

Survey and practical perspective on homomorphic encryption schemes and tools for privacy-preserving machine learning.

PDF sur HAL BibTeX Source / DOI HAL / texte

Secure and non-interactive k-NN classifier using symmetric fully homomorphic encryption

Yulliwas Ameur, Rezak Aziz, Vincent Audigier, Samia Bouzefrane.

Privacy in Statistical Databases (PSD 2022), Paris - Springer, 2022

A non-interactive privacy-preserving k-NN classifier built on symmetric fully homomorphic encryption.

PDF sur HAL BibTeX Source / DOI HAL / texte

Acceptées, à paraître

Articles acceptés en 2026 dont les actes ou le DOI ne sont pas encore publiés. Le statut exact est indiqué pour chacun.

SmartPQ-Shield for Policy-Bounded Safe-Action Bandits in Adaptive Post-Quantum TLS

Insaf Imene Lasledj, Yulliwas Ameur, Samia Bouzefrane.

WIAA'26 workshop, IEEE/WIC WI-IAT 2026, 2026. Article accepté le 30 septembre 2026 (atelier WIAA'26) ; version finale déposée, actes IEEE à paraître.

A policy-bounded controller for adaptive post-quantum TLS: a contextual bandit ranks only admissible configurations and a deterministic shield prevents any downgrade.

BibTeX

Measuring the Operational Value of Identity-Driven Micro-Segmentation in Hybrid Environments: A Reproducible Comparison with ACL-Based Segmentation

Yulliwas Ameur, Daniel Tanier, Soumya Banerjee.

C&ESAR 2026, Rennes (travail en cours), 2026. Version finale acceptée le 27 septembre 2026 pour présentation à C&ESAR 2026 (European Cyber Week, Rennes, 16–19 novembre 2026).

A reproducible comparison of identity-driven micro-segmentation and ACL-based segmentation in hybrid environments.

BibTeX

Closing the Timing Gap in the Anonymization Layer: A Dual-Component Timing Side-Channel Countermeasure Against IDBleed

Redha Boukhari, Yulliwas Ameur, Mehammed Daoui, Soumya Banerjee.

Cybersecurity (Springer Nature), 2026. Article de revue accepté le 22 septembre 2026 ; DOI en attente.

A dual-component countermeasure (fail-fast suppression and temporal jitter) that reduces a timing-based IoT tracking attack to chance-level accuracy (50.4%).

BibTeX HAL / texte

Context vs. Compute: Self-Hosted Detection Rule Generation with Knowledge-Graph-Augmented Language Models

Tristan Madani, Yulliwas Ameur, Samia Bouzefrane.

IEEE CloudCom 2026, 2026. Accepté le 15 septembre 2026 avec présentation en poster à IEEE CloudCom 2026 (Paris) ; version finale et copyright déposés ; actes IEEE à paraître.

Comparing knowledge-graph and retrieval context across open-weight language model capacities for Sigma detection-rule generation.

BibTeX HAL / texte

From Attack Scenario to Measurable Detection Improvement: A Knowledge-Driven ATT&CK/D3FEND Framework for Instrumented Purple Teaming

Tristan Madani, Yulliwas Ameur, Samia Bouzefrane.

C&ESAR 2026, 2026. Version finale acceptée le 26 septembre 2026 pour présentation à C&ESAR 2026 (Rennes, novembre 2026).

Organizations run purple team exercises, find gaps, patch a few rules, and report success—but without a formal measurement framework, they cannot quantify how much detection improved or why specific techniques went undet…

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PQTrust-Agent: Policy-Compiled Post-Quantum Trust Contracts for Web-of-Agents Communications

Yulliwas Ameur, Insaf Imene Lasledj, Samia Bouzefrane.

IEEE/WIC/ACM WI-IAT 2026, 2026. Article accepté ; actes à paraître.

Autonomous Web agents can agree on a task while enforcing incompatible cryptographic, fallback, resumption, and lease policies. This paper presents PQTrust-Agent, a constraint-first bilateral authorization protocol. Each…

PDF (manuscrit auteur) BibTeX HAL / texte Code et artefacts

Knowledge-Graph-Constrained LLM Generation of SIEM Detection Rules

Tristan Madani, Yulliwas Ameur, Samia Bouzefrane.

LLM4Sec, ESORICS 2026, 2026. Accepté le 20 juillet 2026 à LLM4Sec @ ESORICS 2026 ; inclus dans les actes LNCS.

Generating SIEM detection rules with LLMs constrained by a knowledge graph.

BibTeX HAL / texte

Building a Community-Grounded Spell Checker for the Kabyle Language Using NLP Powered by AI

Massil Aoudj, Tahar Boukhenoufa, Samia Bouzefrane, Yulliwas Ameur, Kamal Naït-Zerrad.

FEL XXX 2026, 2026. Résumé étendu accepté le 1er août 2026 ; présentation à FEL XXX (novembre 2026).

A community-grounded spell checker for the Kabyle language combining NLP resources and AI-based correction.

Early extended abstract PDF (3 pages) BibTeX HAL / texte

GovSecLLM++: A Compliance-Aware Benchmark for Security Testing and Governance Evidence in LLM-Based Applications

Yulliwas Ameur, Insaf Imene Lasledj, Samia Bouzefrane, Lyes Khoukhi.

SecAI, ESORICS 2026, 2026. Long papier accepté le 24 juillet 2026 et présenté oralement à SecAI @ ESORICS 2026 (Rome, 17–18 septembre 2026) ; actes LNCS.

A compliance-aware benchmark that produces security-testing results and governance evidence for LLM-based applications.

BibTeX HAL / texte Code et artefacts

Benchmarking Detection Engineering Improvements through Instrumented Adversary Emulation

Tristan Madani, Yulliwas Ameur, Samia Bouzefrane.

ANUBIS, ESORICS 2026, 2026. Accepté le 31 juillet 2026 et présenté le 18 septembre 2026 à ANUBIS @ ESORICS 2026 ; actes LNCS.

Measuring detection-engineering improvements through instrumented adversary emulation.

BibTeX HAL / texte

CIGMA: An Evidence-Grounded Cryptographic Inventory Graph for Reproducible Post-Quantum Migration Prioritization

Yulliwas Ameur, Insaf Imene Lasledj, Soumya Banerjee.

C&ESAR 2026, 2026. Version finale acceptée le 27 septembre 2026 pour présentation à C&ESAR 2026 (Rennes, novembre 2026).

An evidence-grounded cryptographic inventory graph for reproducible prioritization of post-quantum migration.

BibTeX HAL / texte Code et artefacts

AgentFlowShield: Defending LLM Agents Against Metadata Side Channels

Redha Boukhari, Yulliwas Ameur, Mehammed Daoui.

AICCSA 2026, 2026. Article accepté ; actes à paraître.

Tool-augmented LLM agents produce structured, multi-phase network traffic whose encrypted metadata—packet sizes, inter-arrival times, burst boundaries, and streaming cadence—can reveal which tools were invoked, whether r…

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Evaluating Indirect Prompt Injection in RAG Systems: Defense-in-Depth, Retrieval Effects, and Security–Utility Trade-offs

Yulliwas Ameur, Miqeas Pedro Mendes, Samia Bouzefrane, Lyes Khoukhi.

IEEE/WIC WI-IAT 2026, Brisbane, 2026. Article court accepté le 31 août 2026 ; version finale déposée, actes IEEE à paraître.

A controlled benchmark of indirect prompt injection in RAG systems: 12 attack families, 5 datasets, 3 generators; defense composition can be non-monotonic.

BibTeX HAL / texte Code et artefacts

Prépublication

State-of-the-Art and Development of Privacy-Enhancing Technologies

Yulliwas Ameur, Samia Bouzefrane.

EasyChair Preprint 9814, 2023

A survey of privacy-enhancing technologies and their development for secure data processing.

Preprint PDF on EasyChair BibTeX Source / DOI HAL / texte

Thèse

Exploring the Scope of Machine Learning using Homomorphic Encryption in IoT/Cloud (PhD thesis)

Yulliwas Ameur.

HESAM Université - Conservatoire national des arts et métiers (Cnam), Paris, 2023

PhD thesis supervised by Samia Bouzefrane and Vincent Audigier - privacy-preserving ML (k-NN, k-means, differential privacy) over encrypted data in IoT/Cloud.

BibTeX Source / DOI HAL / texte