Title
DaST: Data-Free Substitute Training for Adversarial Attacks
Abstract
Machine learning models are vulnerable to adversarial examples. For the black-box setting, current substitute attacks need pre-trained models to generate adversarial examples. However, pre-trained models are hard to obtain in real-world tasks. In this paper, we propose a data-free substitute training method (DaST) to obtain substitute models for adversarial black-box attacks without the requirement of any real data. To achieve this, DaST utilizes specially designed generative adversarial networks (GANs) to train the substitute models. In particular, we design a multi-branch architecture and label-control loss for the generative model to deal with the uneven distribution of synthetic samples. The substitute model is then trained by the synthetic samples generated by the generative model, which are labeled by the attacked model subsequently. The experiments demonstrate the substitute models produced by DaST can achieve competitive performance compared with the baseline models which are trained by the same train set with attacked models. Additionally, to evaluate the practicability of the proposed method on the real-world task, we attack an online machine learning model on the Microsoft Azure platform. The remote model misclassifies 98.35% of the adversarial examples crafted by our method. To the best of our knowledge, we are the first to train a substitute model for adversarial attacks without any real data.
Year
DOI
Venue
2020
10.1109/CVPR42600.2020.00031
2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
Keywords
DocType
ISSN
Microsoft Azure platform,label-control loss,multibranch architecture,substitute attacks,data-free substitute training,online machine learning,attacked model,generative model,generative adversarial networks,adversarial black-box attacks,adversarial examples,adversarial attacks,DaST
Conference
1063-6919
ISBN
Citations 
PageRank 
978-1-7281-7169-2
3
0.40
References 
Authors
35
5
Name
Order
Citations
PageRank
Mingyi Zhou1102.18
Jing Wu24916.62
Yipeng Liu311726.05
Shuaicheng Liu436328.26
Ce Zhu51473117.79