💻 computer science

Voltage and Electromagnetic Fault Injectioin in TinyML: Attacks and Countermeasures

This paper demonstrates that TinyML models on constrained IoT devices are vulnerable to stealthy voltage and electromagnetic fault injection attacks that can degrade accuracy or force predictable outputs, and proposes Randomized Self-Reduction and majority voting as effective countermeasures to enhance their robustness.

Srilalith Nampally, Anthony Etim, Aubtin Rasouli, Dustin Mazza, Tinghung Chiu, Ferhat Erata, Leyla Nazhandali, Jakub Sze (…)2026-08-31
💻 computer science

Session Key Driven Symmetric Substitution Cipher Design Implementation and Security

This paper presents the design, implementation, and security analysis of a dynamic session key-driven symmetric substitution cipher that resists standard attacks through position integrity and key-conditional changes, while also evaluating its performance using machine learning models to establish it as an efficient alternative for real-time encryption.

Siddharth Ghansela, Yashwant Singh Chauhan, Sunil Chamoli, Sumit Rana2026-08-31
💻 computer science

A Comparative Study of CNN-LSTM and Graph Neural Networks for Credit Card Fraud Detection: A Cost-Aware, Explainable, and Deployment-Ready Framework

This study compares CNN-LSTM and Graph Neural Network models for credit card fraud detection on the Kaggle dataset, finding that while the CNN-LSTM outperforms the GNN due to the latter's inability to leverage anonymized relational features, the results underscore the critical importance of threshold tuning, class imbalance handling, and model selection for practical deployment.

Jawad Hasan Alkhateeb¹, Taha Houda², Ahmad A. Mazhar³, Manar A. Mizher, Manal Abd Al-Jabbar Mizher2026-08-31
💻 computer science

When Patients Say “Do Not Share”: LLMs Misroute Sensitive Information in Clinical Documentation

This study reveals that large language models frequently fail to honor patient requests to withhold sensitive information in clinical documentation, disclosing such data in over a third of cases to unrelated recipients, but demonstrates that implementing recipient-conditioned routing workflows can significantly mitigate this risk without compromising necessary information sharing.

Mahmud Omar, Reem Agbareia, Alexander W Charney, Raja-Elie E Abdulnour, Ankit Sakhuja, Alon Gorenshtein, Jonathan B Krus (…)2026-08-31
💻 computer science

A strongly connected graph-based digital chaotic system and its application to bidirectional-diffusion image encryption

This paper proposes a strongly connected graph-based digital chaotic system constructed via an inverse approach to eliminate finite precision effects and ensure rigorous chaos properties, which is then applied to a bidirectional-diffusion image encryption algorithm that demonstrates robust security against statistical and differential attacks.

Ziting Xie, Qianxue Wang, Jiayu Lin, Yichun Huang2026-08-31
💻 computer science

From Action Units to Emotions: A Two-Stage Fine-Tuning Framework with Decision-Level Fusion for Facial Expression Recognition

This paper proposes a two-stage fine-tuning framework that enhances a multi-modal large model's facial action unit recognition and emotion classification capabilities through a question-answer dataset and decision-level fusion with a specialized small model, thereby significantly improving the accuracy and interpretability of facial expression recognition for subtle and low-intensity expressions.

Rui Tu, Liguo Zhou, Alois Knoll2026-08-31