9 papers
Deanonymizable Scoped Linkable Ring Signatures
Montassar Naghmouchi, Maryline Laurent
Ring signatures offer highly desirable privacy features like anonymity and ad-hoc group formation with high autonomy, but partially lack linkability and accountability features req…
Uncovering Memorization in Timeseries Imputation models: LBRM Membership Inference and its link to attribute Leakage
Faiz Taleb, Ivan Gazeau, Maryline Laurent
Deep learning models for time series imputation are now essential in fields such as healthcare, the Internet of Things (IoT), and finance. However, their deployment raises critical…
Enabling Multi-Client Authorization in Dynamic SSE
Seydina Ousmane Diallo, Maryline Laurent, Nesrine Kaaniche
Outsourcing encrypted data to the cloud creates a fundamental tension between data privacy and functional searchability. Current Searchable Symmetric Encryption (SSE) solutions fre…
ClinConNet: A Blockchain-based Dynamic Consent Management Platform for Clinical Research
Montassar Naghmouchi, Maryline Laurent
Consent is an ethical cornerstone of clinical research and healthcare in general. Although the ethical principles of consent - providing information, ensuring comprehension, and en…
A new membership inference attack that spots memorization in generative and predictive models: Loss-Based with Reference Model algorithm (LBRM)
Faiz Taleb, Ivan Gazeau, Maryline Laurent
Generative models can unintentionally memorize training data, posing significant privacy risks. This paper addresses the memorization phenomenon in time series imputation models, i…
GeoFINDR: Practical Approach to Verify Cloud Instances Geolocation in Multicloud
Said Ider, Maryline Laurent
In multicloud environments, where legal obligations, technical constraints and economic interests are at stake, it is of interest to stakeholders to be able to locate cloud data or…