51 citations · 126 across the 16 of their papers we have counts for
23 papers
MVP-ORAM: a Wait-free Concurrent ORAM for Confidential BFT Storage
Robin Vassantlal, Hasan Heydari, Bernardo Ferreira +1
It is well known that encryption alone is not enough to protect data privacy. Access patterns, revealed when operations are performed, can also be leveraged in inference attacks. O…
QScale: Probabilistic Chained Consensus for Moderate-Scale Systems
Hasan Heydari, Alysson Bessani, Kartik Nayak
Existing distributed ledger protocols either incur a high communication complexity and are thus suited to systems with a small number of processes (e.g., PBFT), or rely on committe…
False Alarms, Real Damage: Adversarial Attacks Using LLM-based Models on Text-based Cyber Threat Intelligence Systems
Samaneh Shafee, Alysson Bessani, Pedro M. Ferreira
Cyber Threat Intelligence (CTI) has emerged as a vital complementary approach that operates in the early phases of the cyber threat lifecycle. CTI involves collecting, processing,…
Knowledge Connectivity Requirements for Solving BFT Consensus with Unknown Participants and Fault Threshold (Extended Version)
Hasan Heydari, Robin Vassantlal, Alysson Bessani
Consensus stands as a fundamental building block for constructing reliable and fault-tolerant distributed services. The increasing demand for high-performance and scalable blockcha…
Probabilistic Byzantine Fault Tolerance (Extended Version)
Diogo Avelãs, Hasan Heydari, Eduardo Alchieri +2
Consensus is a fundamental building block for constructing reliable and fault-tolerant distributed services. Many Byzantine fault-tolerant consensus protocols designed for partiall…
Evaluation of LLM Chatbots for OSINT-based Cyber Threat Awareness
Samaneh Shafee, Alysson Bessani, Pedro M. Ferreira
Knowledge sharing about emerging threats is crucial in the rapidly advancing field of cybersecurity and forms the foundation of Cyber Threat Intelligence (CTI). In this context, La…