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Cross-modal hashing is an important approach for multimodal data management and application. Existing unsupervised cross-modal hashing algorithms mainly rely on data features in pre-trained models to mine their similarity relationships.…

信息检索 · 计算机科学 2022-07-12 Liang Li , Baihua Zheng , Weiwei Sun

Deep neural networks (DNNs) are known to be vulnerable to adversarial examples. Existing works have mostly focused on either digital adversarial examples created via small and imperceptible perturbations, or physical-world adversarial…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Ranjie Duan , Xingjun Ma , Yisen Wang , James Bailey , A. K. Qin , Yun Yang

Ransomware constitutes a significant threat to the Android operating system. It can either lock or encrypt the target devices, and victims are forced to pay ransoms to restore their data. Hence, the prompt detection of such attacks has a…

Among many prevailing malware, crypto-ransomware poses a significant threat as it financially extorts affected users by creating denial of access via unauthorized encryption of their documents as well as holding their documents hostage and…

密码学与安全 · 计算机科学 2020-11-25 Nitin Pundir , Mark Tehranipoor , Fahim Rahman

Data privacy concerns often prevent the use of cloud-based machine learning services for sensitive personal data. While homomorphic encryption (HE) offers a potential solution by enabling computations on encrypted data, the challenge is to…

Advanced Encryption Standard (AES) is a widely adopted cryptographic algorithm, yet its practical implementations remain susceptible to side-channel and fault injection attacks. In this work, we propose a comprehensive framework that…

密码学与安全 · 计算机科学 2025-07-08 Nishant Chinnasami , Rye Stahle-Smith , Rasha Karakchi

This paper presents a novel framework, namely Deep Cross-modality Spectral Hashing (DCSH), to tackle the unsupervised learning problem of binary hash codes for efficient cross-modal retrieval. The framework is a two-step hashing approach…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Tuan Hoang , Thanh-Toan Do , Tam V. Nguyen , Ngai-Man Cheung

The rise of generative neural networks has triggered an increased demand for intellectual property (IP) protection in generated content. Deep watermarking techniques, recognized for their flexibility in IP protection, have garnered…

密码学与安全 · 计算机科学 2024-02-27 Biqing Qi , Junqi Gao , Yiang Luo , Jianxing Liu , Ligang Wu , Bowen Zhou

Ransomware attacks have caused billions of dollars in damages in recent years, and are expected to cause billions more in the future. Consequently, significant effort has been devoted to ransomware detection and mitigation. Behavioral-based…

密码学与安全 · 计算机科学 2025-07-14 Dorjan Hitaj , Giulio Pagnotta , Fabio De Gaspari , Lorenzo De Carli , Luigi V. Mancini

Due to the decentralized and public nature of the Blockchain ecosystem, the malicious activities on the Ethereum platform impose immeasurable losses for the users. Existing phishing scam detection methods mostly rely only on the analysis of…

密码学与安全 · 计算机科学 2022-08-30 Jinhuan Wang , Pengtao Chen , Xinyao Xu , Jiajing Wu , Meng Shen , Qi Xuan , Xiaoniu Yang

Newly emerging variants of ransomware pose an ever-growing threat to computer systems governing every aspect of modern life through the handling and analysis of big data. While various recent security-based approaches have focused on…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Amir Atapour-Abarghouei , Stephen Bonner , Andrew Stephen McGough

With the increasing extent of malware attacks in the present day along with the difficulty in detecting modern malware, it is necessary to evaluate the effectiveness and performance of Deep Neural Networks (DNNs) for malware classification.…

密码学与安全 · 计算机科学 2023-10-12 Akhil M R , Adithya Krishna V Sharma , Harivardhan Swamy , Pavan A , Ashray Shetty , Anirudh B Sathyanarayana

The continued evolution and diversity of malware constitutes a major threat in modern systems. It is well proven that security defenses currently available are ineffective to mitigate the skills and imagination of cyber-criminals…

密码学与安全 · 计算机科学 2019-04-02 Irina Baptista , Stavros Shiaeles , Nicholas Kolokotronis

The damage caused by crypto-ransomware, due to encryption, is difficult to revert and cause data losses. In this paper, a machine learning (ML) classifier was built to early detect ransomware (called crypto-ransomware) that uses…

密码学与安全 · 计算机科学 2020-03-17 Chih-Yuan Yang , Ravi Sahita

Anomaly detection plays a crucial role in ensuring network robustness. However, implementing intelligent alerting systems becomes a challenge when considering scenarios in which anomalies can be caused by both malicious and non-malicious…

网络与互联网体系结构 · 计算机科学 2024-02-16 Emanuele Mengoli , Zhiyuan Yao , Wutao Wei

A rising number of botnet families have been successfully detected using deep learning architectures. While the variety of attacks increases, these architectures should become more robust against attacks. They have been proven to be very…

密码学与安全 · 计算机科学 2022-04-29 Rahim Taheri

Nowadays, malware increasingly uses DNS-based covert channels in order to evade detection and maintain stealthy communication with its command-and-control servers. While prior work has focused on detecting such activity, identifying…

密码学与安全 · 计算机科学 2025-11-26 Pascal Ruffing , Denis Petrov , Sebastian Zillien , Steffen Wendzel

Despite their unprecedented performance in various domains, utilization of Deep Neural Networks (DNNs) in safety-critical environments is severely limited in the presence of even small adversarial perturbations. The present work develops a…

机器学习 · 计算机科学 2020-10-19 Fatemeh Sheikholeslami , Swayambhoo Jain , Georgios B. Giannakis

Several cybersecurity domains, such as ransomware detection, forensics and data analysis, require methods to reliably identify encrypted data fragments. Typically, current approaches employ statistics derived from byte-level distribution,…

密码学与安全 · 计算机科学 2021-04-01 Fabio De Gaspari , Dorjan Hitaj , Giulio Pagnotta , Lorenzo De Carli , Luigi V. Mancini

Although the recent progress is substantial, deep learning methods can be vulnerable to the maliciously generated adversarial examples. In this paper, we present a novel training procedure and a thresholding test strategy, towards robust…

机器学习 · 计算机科学 2018-11-08 Tianyu Pang , Chao Du , Yinpeng Dong , Jun Zhu