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Aggregating Message Authentication Codes (MACs) promises to save valuable bandwidth in resource-constrained environments. The idea is simple: Instead of appending an authentication tag to each message in a communication stream, the…

Cryptography and Security · Computer Science 2025-10-24 Eric Wagner , David Heye , Jan Bauer , Klaus Wehrle , Martin Serror

The fields of machine learning (ML) and cryptanalysis share an interestingly common objective of creating a function, based on a given set of inputs and outputs. However, the approaches and methods in doing so vary vastly between the two…

Cryptography and Security · Computer Science 2025-01-28 Benjamin D. Kim , Vipindev Adat Vasudevan , Rafael G. L. D'Oliveira , Alejandro Cohen , Thomas Stahlbuhk , Muriel Médard

Secure Multi-Party Computation (SMC) allows parties with similar background to compute results upon their private data, minimizing the threat of disclosure. The exponential increase in sensitive data that needs to be passed upon networked…

Cryptography and Security · Computer Science 2009-08-10 Dr. Durgesh Kumar Mishra , Neha Koria , Nikhil Kapoor , Ravish Bahety

Tabletop exercises are a crucial component of many company's strategy to test and evaluate its preparedness for security incidents in a realistic way. Traditionally led by external firms specializing in cybersecurity, these exercises can be…

Cryptography and Security · Computer Science 2024-08-31 Sam Hays , Jules White

Answering end user security questions is challenging. While large language models (LLMs) like GPT, LLAMA, and Gemini are far from error-free, they have shown promise in answering a variety of questions outside of security. We studied LLM…

Cryptography and Security · Computer Science 2025-10-29 Vijay Prakash , Kevin Lee , Arkaprabha Bhattacharya , Danny Yuxing Huang , Jessica Staddon

Ultra-reliable and low-latency communication (URLLC) is one category of service to be provided by next-generation wireless networks. Motivated by increasing security concerns in such networks, this article focuses on physical layer security…

Information Theory · Computer Science 2019-06-21 Riqing Chen , Chunhui Li , Shihao Yan , Robert Malaney , Jinhong Yuan

Machine learning models are known to leak sensitive information, as they inevitably memorize (parts of) their training data. More alarmingly, large language models (LLMs) are now trained on nearly all available data, which amplifies the…

Machine Learning · Computer Science 2025-10-10 Jiashu Tao , Reza Shokri

Research shows that dialogue, the interactive process through which participants articulate their thinking, plays a central role in constructing shared understanding, coordinating action, and shaping learning outcomes in teams. Analysing…

Quantum secret sharing (QSS) plays a significant role in multiparty quantum communication and is a crucial component of future quantum multiparty computing networks. Therefore, it is highly valuable to develop a QSS protocol that offers…

Quantum Physics · Physics 2024-10-10 Yuan-Zhuo Wang , Xiao-Ran Sun , Xiao-Yu Cao , Hua-Lei Yin , Zeng-Bing Chen

Large language models (LLMs) have achieved remarkable progress across domains and applications but face challenges such as high fine-tuning costs, inference latency, limited edge deployability, and reliability concerns. Small language…

Computation and Language · Computer Science 2025-11-06 Fali Wang , Jihai Chen , Shuhua Yang , Ali Al-Lawati , Linli Tang , Hui Liu , Suhang Wang

This paper investigates the physical layer security (PLS) performance of $\alpha$-$\mathcal{F}$ fading channels with pointing errors under passive and active eavesdropping scenarios. Novel analytical expressions are derived for key PLS…

Strongly multiplicative linear secret sharing schemes (LSSS) have been a powerful tool for constructing secure multiparty computation protocols. However, it remains open whether or not there exist efficient constructions of strongly…

Cryptography and Security · Computer Science 2008-12-16 Zhifang Zhang , Mulan Liu , Yeow Meng Chee , San Ling , Huaxiong Wang

Recently, many organizations have been installing middleboxes in their networks in large numbers to provide various services to their customers. Although middleboxes have the advantage of not being dependent on specific hardware and being…

Cryptography and Security · Computer Science 2023-09-29 Taehyun Ahn , Jiwon Kwak , Seungjoo Kim

Cascade systems route computational requests to smaller models when possible and defer to larger models only when necessary, offering a promising approach to balance cost and quality in LLM deployment. However, they face a fundamental…

Computation and Language · Computer Science 2025-10-29 Duncan Soiffer , Steven Kolawole , Virginia Smith

Machine learning models are susceptible to membership inference attacks (MIAs), which aim to infer whether a sample is in the training set. Existing work utilizes gradient ascent to enlarge the loss variance of training data, alleviating…

Machine Learning · Computer Science 2024-06-19 Zhenlong Liu , Lei Feng , Huiping Zhuang , Xiaofeng Cao , Hongxin Wei

Sequence models, such as Large Language Models (LLMs) and autoregressive image generators, have a tendency to memorize and inadvertently leak sensitive information. While this tendency has critical legal implications, existing tools are…

Cryptography and Security · Computer Science 2025-06-06 Lorenzo Rossi , Michael Aerni , Jie Zhang , Florian Tramèr

We study the inherent trade-offs in minimizing privacy risks and maximizing utility, while maintaining high computational efficiency, when fine-tuning large language models (LLMs). A number of recent works in privacy research have attempted…

Artificial Intelligence · Computer Science 2026-02-10 Soumi Das , Camila Kolling , Mohammad Aflah Khan , Mahsa Amani , Bishwamittra Ghosh , Qinyuan Wu , Till Speicher , Krishna P. Gummadi

Machine learning (ML) has become a core component of many real-world applications and training data is a key factor that drives current progress. This huge success has led Internet companies to deploy machine learning as a service (MLaaS).…

Cryptography and Security · Computer Science 2018-12-18 Ahmed Salem , Yang Zhang , Mathias Humbert , Pascal Berrang , Mario Fritz , Michael Backes

Multi-agent systems (MAS) extend large language models (LLMs) from independent single-model reasoning to coordinative system-level intelligence. While existing LLM agents depend on text-based mediation for reasoning and communication, we…

Computation and Language · Computer Science 2025-12-09 Jiaru Zou , Xiyuan Yang , Ruizhong Qiu , Gaotang Li , Katherine Tieu , Pan Lu , Ke Shen , Hanghang Tong , Yejin Choi , Jingrui He , James Zou , Mengdi Wang , Ling Yang

Although Large Language Models (LLMs) have become increasingly integral to diverse applications, their capabilities raise significant privacy concerns. This survey offers a comprehensive overview of privacy risks associated with LLMs and…

Cryptography and Security · Computer Science 2025-05-06 Kang Chen , Xiuze Zhou , Yuanguo Lin , Shibo Feng , Li Shen , Pengcheng Wu