activity
20192026
most citedSoK: Privacy Preserving Machine Learning using Functional Encryption: Opportunities and Challenges

20 citations · 50 across the 14 of their papers we have counts for

collaborators

16 papers

cs.CR2026

COPEX: Benchmarking LLM Robustness to Adversarial Context Across Model Context Protocol (MCP) Layers

Nahom Birhan, Mehrdad Rostamzadeh, Sidhant Narula +3

Large language models increasingly mediate tool use in Model Context Protocol (MCP) systems, where adversarial influence may enter through user instructions, tool schemas, tool out…

cs.CR2026

TrustShiftProbe: Characterizing, Benchmarking, and Defending Staged Trust Attacks on MCP Servers

Mehrdad Rostamzadeh, Sidhant Narula, Mohammad Ghasemigol +1

The Model Context Protocol (MCP) has emerged as the standard layer connecting Large Language Model agents to external tool backends. This openness introduces a severe server-side t…

cs.CR2026

MCP-DPT: A Defense-Placement Taxonomy and Coverage Analysis for Model Context Protocol Security

Mehrdad Rostamzadeh, Sidhant Narula, Nahom Birhan +2

The Model Context Protocol (MCP) enables large language models (LLMs) to dynamically discover and invoke third-party tools, significantly expanding agent capabilities while introdu…

cs.CR2026

BioShield: A Context-Aware Firewall for Securing Bio-LLMs

Protiva Das, Sovon Chakraborty, Sidhant Narula +5

The rapid advancement of Large Language Models (LLMs) in biological research has significantly lowered the barrier to accessing complex bioinformatics knowledge, ex perimental desi…

cs.CR2026

DCInject: Persistent Backdoor Attacks via Frequency Manipulation in Personal Federated Learning

Nahom Birhan, Daniel Wesego, Dereje Shenkut +2

Personalized federated learning (PFL) creates client-specific models to handle data heterogeneity. Previously, PFL has been shown to be naturally resistant to backdoor attack propa…

cs.CR2025

HarmNet: A Framework for Adaptive Multi-Turn Jailbreak Attacks on Large Language Models

Sidhant Narula, Javad Rafiei Asl, Mohammad Ghasemigol +2

Large Language Models (LLMs) remain vulnerable to multi-turn jailbreak attacks. We introduce HarmNet, a modular framework comprising ThoughtNet, a hierarchical semantic network; a…

cs.CR2025

NEXUS: Network Exploration for eXploiting Unsafe Sequences in Multi-Turn LLM Jailbreaks

Javad Rafiei Asl, Sidhant Narula, Mohammad Ghasemigol +2

Large Language Models (LLMs) have revolutionized natural language processing but remain vulnerable to jailbreak attacks, especially multi-turn jailbreaks that distribute malicious…

cs.CR2024★ 1 cited

MOFHEI: Model Optimizing Framework for Fast and Efficient Homomorphically Encrypted Neural Network Inference

Parsa Ghazvinian, Robert Podschwadt, Prajwal Panzade +2

Due to the extensive application of machine learning (ML) in a wide range of fields and the necessity of data privacy, privacy-preserving machine learning (PPML) solutions have rec…

cs.CL2024★ 9 cited

SSCAE -- Semantic, Syntactic, and Context-aware natural language Adversarial Examples generator

Javad Rafiei Asl, Mohammad H. Rafiei, Manar Alohaly +1

Machine learning models are vulnerable to maliciously crafted Adversarial Examples (AEs). Training a machine learning model with AEs improves its robustness and stability against a…

cs.CL2024★ 1 cited

RobustSentEmbed: Robust Sentence Embeddings Using Adversarial Self-Supervised Contrastive Learning

Javad Rafiei Asl, Prajwal Panzade, Eduardo Blanco +2

Pre-trained language models (PLMs) have consistently demonstrated outstanding performance across a diverse spectrum of natural language processing tasks. Nevertheless, despite thei…

cs.LG2024★ 2 cited

I can't see it but I can Fine-tune it: On Encrypted Fine-tuning of Transformers using Fully Homomorphic Encryption

Prajwal Panzade, Daniel Takabi, Zhipeng Cai

In today's machine learning landscape, fine-tuning pretrained transformer models has emerged as an essential technique, particularly in scenarios where access to task-aligned train…

cs.CR2024★ 2 cited

MedBlindTuner: Towards Privacy-preserving Fine-tuning on Biomedical Images with Transformers and Fully Homomorphic Encryption

Prajwal Panzade, Daniel Takabi, Zhipeng Cai

Advancements in machine learning (ML) have significantly revolutionized medical image analysis, prompting hospitals to rely on external ML services. However, the exchange of sensit…

cs.CR2023★ 1 cited

An Insider Threat Mitigation Framework Using Attribute Based Access Control

Olusesi Balogun, Daniel Takabi

Insider Threat is a significant and potentially dangerous security issue in corporate settings. It is difficult to mitigate because, unlike external threats, insiders have knowledg…

cs.CR2022★ 20 cited

SoK: Privacy Preserving Machine Learning using Functional Encryption: Opportunities and Challenges

Prajwal Panzade, Daniel Takabi

With the advent of functional encryption, new possibilities for computation on encrypted data have arisen. Functional Encryption enables data owners to grant third-party access to…

cs.CR2022★ 6 cited

SoK: Privacy-preserving Deep Learning with Homomorphic Encryption

Robert Podschwadt, Daniel Takabi, Peizhao Hu

Outsourced computation for neural networks allows users access to state of the art models without needing to invest in specialized hardware and know-how. The problem is that the us…

cs.CR2019★ 8 cited

Privacy preserving Neural Network Inference on Encrypted Data with GPUs

Daniel Takabi, Robert Podschwadt, Jeff Druce +2

Machine Learning as a Service (MLaaS) has become a growing trend in recent years and several such services are currently offered. MLaaS is essentially a set of services that provid…