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This work presents a new tool to verify the correctness of cryptographic implementations with respect to cache attacks. Our methodology discovers vulnerabilities that are hard to find with other techniques, observed as exploitable leakage.…

密码学与安全 · 计算机科学 2017-09-07 Gorka Irazoqui , Kai Cong , Xiaofei Guo , Hareesh Khattri , Arun Kanuparthi , Thomas Eisenbarth , Berk Sunar

Offline Reinforcement Learning (RL) enables policy optimization from static datasets but is inherently vulnerable to backdoor attacks. Existing attack strategies typically struggle against safety-constrained algorithms (e.g., CQL) due to…

机器学习 · 计算机科学 2026-01-16 Yuanjie Zhao , Junnan Qiu , Yue Ding , Jie Li

The Internet has become a prime subject to security attacks and intrusions by attackers. These attacks can lead to system malfunction, network breakdown, data corruption or theft. A network intrusion detection system (IDS) is a tool used…

密码学与安全 · 计算机科学 2022-03-14 Tanwir Ahmad , Dragos Truscan , Juri Vain , Ivan Porres

We examine the issue of password length leakage via encrypted traffic i.e., bicycle attacks. We aim to quantify both the prevalence of password length leakage bugs as well as the potential harm to users. In an observational study, we find…

密码学与安全 · 计算机科学 2020-02-06 Benjamin Harsha , Robert Morton , Jeremiah Blocki , John Springer , Melissa Dark

Critical and sophisticated cyberattacks often take multitudes of reconnaissance, exploitations, and obfuscation techniques to penetrate through well protected enterprise networks. The discovery and detection of attacks, though needing…

密码学与安全 · 计算机科学 2021-03-26 Shanchieh Jay Yang , Ahmet Okutan , Gordon Werner , Shao-Hsuan Su , Ayush Goel , Nathan D. Cahill

Computer Use Agents (CUAs), autonomous systems that interact with software interfaces via browsers or virtual machines, are rapidly being deployed in consumer and enterprise environments. These agents introduce novel attack surfaces and…

Cyber-physical systems (CPSs) are part of most critical infrastructures such as industrial automation and transportation systems. Thus, security incidents targeting CPSs can have disruptive consequences to assets and people. As prior…

密码学与安全 · 计算机科学 2019-07-02 Faeq Alrimawi , Liliana Pasquale , Deepak Mehta , Nobukazu Yoshioka , Bashar Nuseibeh

Kodi is of one of the world's largest open-source streaming platforms for viewing video content. Easily installed Kodi add-ons facilitate access to online pirated videos and streaming content by facilitating the user to search and view…

多媒体 · 计算机科学 2020-12-03 Samuel Todd Bromley , John Sheppard , Mark Scanlon , Nhien-An Le-Khac

The transferability of adversarial examples allows the deception on black-box models, and transfer-based targeted attacks have attracted a lot of interest due to their practical applicability. To maximize the transfer success rate,…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Junyoung Byun , Seungju Cho , Myung-Joon Kwon , Hee-Seon Kim , Changick Kim

We propose a Universal Defence against backdoor attacks based on Clustering and Centroids Analysis (CCA-UD). The goal of the defence is to reveal whether a Deep Neural Network model is subject to a backdoor attack by inspecting the training…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Wei Guo , Benedetta Tondi , Mauro Barni

Observation Resilient Authentication Schemes (ORAS) are a class of shared secret challenge-response identification schemes where a user mentally computes the response via a cognitive function to authenticate herself such that eavesdroppers…

密码学与安全 · 计算机科学 2020-07-23 Benjamin Zi Hao Zhao , Hassan Jameel Asghar , Mohamed Ali Kaafar , Francesca Trevisan , Haiyue Yuan

Watermarking has been proposed as a lightweight mechanism to identify AI-generated text, with schemes typically relying on perturbations to token distributions. While prior work shows that paraphrasing can weaken such signals, these attacks…

计算与语言 · 计算机科学 2025-10-30 Gokul Ganesan

Conjunctive Searchable Symmetric Encryption (CSSE) enables secure conjunctive searches over encrypted data. While leakage-abuse attacks (LAAs) against single-keyword SSE have been extensively studied, their extension to conjunctive queries…

密码学与安全 · 计算机科学 2025-07-29 Yue Su , Meng Shen , Cong Zuo , Yuzhi Liu , Liehuang Zhu

The widespread deployment of Deep Learning-based Face Recognition Systems raises many security concerns. While prior research has identified backdoor vulnerabilities on isolated components, Backdoor Attacks on real-world, unconstrained…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Quentin Le Roux , Yannick Teglia , Teddy Furon , Philippe Loubet-Moundi , Eric Bourbao

Website fingerprinting attacks, which use statistical analysis on network traffic to compromise user privacy, have been shown to be effective even if the traffic is sent over anonymity-preserving networks such as Tor. The classical attack…

密码学与安全 · 计算机科学 2019-02-22 Anatoly Shusterman , Lachlan Kang , Yarden Haskal , Yosef Meltser , Prateek Mittal , Yossi Oren , Yuval Yarom

IoT devices are known to be vulnerable to various cyber-attacks, such as data exfiltration and the execution of flooding attacks as part of a DDoS attack. When it comes to detecting such attacks using network traffic analysis, it has been…

密码学与安全 · 计算机科学 2023-03-03 Yair Meidan , Daniel Benatar , Ron Bitton , Dan Avraham , Asaf Shabtai

The secret keys of critical network authorities - such as time, name, certificate, and software update services - represent high-value targets for hackers, criminals, and spy agencies wishing to use these keys secretly to compromise other…

The Self-Sovereign Identity (SSI) paradigm is instrumental for decentralised identity management, allowing an entity to create, manage, and present their digital credentials without relying on centralised authorities. Credential selective…

密码学与安全 · 计算机科学 2026-04-14 Elia Onofri , Andrea De Salve , Paolo Mori , Laura Emilia Maria Ricci , Roberto Di Pietro

Modern recommender systems (RS) have profoundly enhanced user experience across digital platforms, yet they face significant threats from poisoning attacks. These attacks, aimed at manipulating recommendation outputs for unethical gains,…

密码学与安全 · 计算机科学 2024-06-06 Zongwei Wang , Junliang Yu , Min Gao , Wei Yuan , Guanhua Ye , Shazia Sadiq , Hongzhi Yin

A Network Intrusion Detection System (NIDS) is a network security technology for detecting intruder attacks. However, it produces a great amount of low-level alerts which makes the analysis difficult, especially to construct the attack…

密码学与安全 · 计算机科学 2021-10-19 Taqwa Ahmed Alhaj , Maheyzah Md Siraj , Anazida Zainal , Inshirah Idris , Anjum Nazir , Fatin Elhaj , Tasneem Darwish