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We present a high-speed continuous-variable quantum random number generator (QRNG) based on heterodyne detection of vacuum fluctuations. The scheme follows a source-device-independent (SDI) security model in which the entropy originates…

量子物理 · 物理学 2025-12-09 Marius Cizauskas , Hamid Tebyanian , Mark Fox , Manfred Bayer , Marc Assmann , Alex Greilich

Pseudo-random number generators (PRNG) are a fundamental element of many security algorithms. We introduce a novel approach to their implementation, by proposing the use of generative adversarial networks (GAN) to train a neural network to…

机器学习 · 计算机科学 2018-10-02 Marcello De Bernardi , MHR Khouzani , Pasquale Malacaria

Diffusion models are a powerful class of generative models that produce images and other content from user prompts, but they are computationally intensive. To mitigate this cost, recent academic and industry work has adopted approximate…

密码学与安全 · 计算机科学 2026-05-26 Desen Sun , Shuncheng Jie , Sihang Liu

Self-supervised diffusion models learn high-quality visual representations via latent space denoising. However, their representation layer poses a distinct threat: unlike traditional attacks targeting generative outputs, its unconstrained…

密码学与安全 · 计算机科学 2026-03-03 Jiayao Wang , Yiping Zhang , Mohammad Maruf Hasan , Xiaoying Lei , Jiale Zhang , Junwu Zhu , Qilin Wu , Dongfang Zhao

High quality random numbers are necessary in the modern world. Ranging from encryption keys in cyber security to models and simulations for scientific use: it's important that these random numbers are of high quality and quickly attainable.…

密码学与安全 · 计算机科学 2024-05-16 Dmitriy Beznosko , Keith Driscoll , Fernando Guadarrama , Steven Mai , Nikolas Thornton

Despite the record-breaking performance in Text-to-Image (T2I) generation by Stable Diffusion, less research attention is paid to its adversarial robustness. In this work, we study the problem of adversarial attack generation for Stable…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Haomin Zhuang , Yihua Zhang , Sijia Liu

A quantum random number generator (QRNG) as a genuine source of randomness is essential in many applications, such as number simulation and cryptography. Recently, a source-independent quantum random number generator (SI-QRNG), which can…

Text-to-image diffusion models have revolutionized generative AI, but their vulnerability to backdoor attacks poses significant security risks. Adversaries can inject imperceptible textual triggers into training data, causing models to…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Ashwath Vaithinathan Aravindan , Abha Jha , Matthew Salaway , Atharva Sandeep Bhide , Duygu Nur Yaldiz

In recent years, diffusion models have achieved remarkable success in the realm of high-quality image generation, garnering increased attention. This surge in interest is paralleled by a growing concern over the security threats associated…

机器学习 · 计算机科学 2024-06-04 Sen Li , Junchi Ma , Minhao Cheng

The success of diffusion models has enabled effortless, high-quality image modifications that precisely align with users' intentions, thereby raising concerns about their potential misuse by malicious actors. Previous studies have attempted…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Hohyun Na , Seunghoo Hong , Simon S. Woo

Diffusion models have emerged as state-of-the-art generative frameworks, excelling in producing high-quality multi-modal samples. However, recent studies have revealed their vulnerability to backdoor attacks, where backdoored models…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Vu Tuan Truong , Long Bao Le

Diffusion models have revolutionized generative modeling with their exceptional ability to produce high-fidelity images. However, misuse of such potent tools can lead to the creation of fake news or disturbing content targeting individuals,…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Yiren Song , Shengtao Lou , Xiaokang Liu , Hai Ci , Pei Yang , Jiaming Liu , Mike Zheng Shou

Deep neural networks (DNNs) offer significant promise for improving breast cancer diagnosis in medical imaging. However, these models are highly susceptible to adversarial attacks--small, imperceptible changes that can mislead…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Yasamin Medghalchi , Moein Heidari , Clayton Allard , Leonid Sigal , Ilker Hacihaliloglu

Recent studies show that diffusion models (DMs) are vulnerable to backdoor attacks. Existing backdoor attacks impose unconcealed triggers (e.g., a gray box and eyeglasses) that contain evident patterns, rendering remarkable attack effects…

密码学与安全 · 计算机科学 2025-03-03 Yuning Han , Bingyin Zhao , Rui Chu , Feng Luo , Biplab Sikdar , Yingjie Lao

The recent advances in diffusion models (DMs) have revolutionized the generation of realistic and complex images. However, these models also introduce potential safety hazards, such as producing harmful content and infringing data…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Yimeng Zhang , Jinghan Jia , Xin Chen , Aochuan Chen , Yihua Zhang , Jiancheng Liu , Ke Ding , Sijia Liu

Generative models such as GANs and diffusion models are widely used to synthesize photorealistic images and to support downstream creative and editing tasks. While adversarial attacks on discriminative models are well studied, attacks…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Mostafa Mohaimen Akand Faisal , Rabeya Amin Jhuma

Diffusion models (DMs) are regarded as one of the most advanced generative models today, yet recent studies suggest that they are vulnerable to backdoor attacks, which establish hidden associations between particular input patterns and…

密码学与安全 · 计算机科学 2024-08-23 Jiang Hao , Xiao Jin , Hu Xiaoguang , Chen Tianyou , Zhao Jiajia

The pseudo-random number generators (PRNGs), sampling algorithms, and algorithms for generating random integers in some common statistical packages and programming languages are unnecessarily inaccurate, by an amount that may matter for…

统计计算 · 统计学 2018-10-29 Philip B. Stark , Kellie Ottoboni

The rapid progress of Deepfake technology has made face swapping highly realistic, raising concerns about the malicious use of fabricated facial content. Existing methods often struggle to generalize to unseen domains due to the diverse…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Ke Sun , Shen Chen , Taiping Yao , Hong Liu , Xiaoshuai Sun , Shouhong Ding , Rongrong Ji

Recent advances in diffusion models have introduced a new era of text-guided image manipulation, enabling users to create realistic edited images with simple textual prompts. However, there is significant concern about the potential misuse…

计算机视觉与模式识别 · 计算机科学 2025-09-30 June Suk Choi , Kyungmin Lee , Jongheon Jeong , Saining Xie , Jinwoo Shin , Kimin Lee