Stealing Image-to-Image Translation Models With a Single Query

• URL: http://arxiv.org/abs/2406.00828v1
• Date: Sun, 2 Jun 2024 18:30:41 GMT
• Title: Stealing Image-to-Image Translation Models With a Single Query
• Authors: Nurit Spingarn-Eliezer, Tomer Michaeli,
• Abstract summary: We study the possibility of stealing image-to-image models. We find that many such models can be stolen with as little as a single, small-sized, query image. Remarkably, we find that the vulnerability to stealing attacks is shared by CNNs and by models with attention mechanisms.
• Score: 24.819964498441635
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Training deep neural networks requires significant computational resources and large datasets that are often confidential or expensive to collect. As a result, owners tend to protect their models by allowing access only via an API. Many works demonstrated the possibility of stealing such protected models by repeatedly querying the API. However, to date, research has predominantly focused on stealing classification models, for which a very large number of queries has been found necessary. In this paper, we study the possibility of stealing image-to-image models. Surprisingly, we find that many such models can be stolen with as little as a single, small-sized, query image using simple distillation. We study this phenomenon on a wide variety of model architectures, datasets, and tasks, including denoising, deblurring, deraining, super-resolution, and biological image-to-image translation. Remarkably, we find that the vulnerability to stealing attacks is shared by CNNs and by models with attention mechanisms, and that stealing is commonly possible even without knowing the architecture of the target model.

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