PhotoDNA的分析

Proceedings of the 18th International Conference on Availability, Reliability and Security Pub Date : 2023-08-29 DOI:10.1145/3600160.3605048

M. Steinebach

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引用次数: 0

摘要

PhotoDNA是一种用于对抗CSAM的流行散列。到目前为止，关于这个散列的性能，只提供了有限的信息。在本文中，我们提供了鲁棒性和假阳性的概述，以及对其结构的一些基本观察。我们证明了它对典型的图像处理(如有损压缩)具有鲁棒性。另一方面，它对裁剪的鲁棒性有限。本文还对算法的改进和使用提出了一些建议。

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An Analysis of PhotoDNA

PhotoDNA is a popular hash used to combat CSAM. So far, only limited information has been provided about this hash in terms of its performance. In this paper, we provide an overview of robustness and false positives, as well as some basic observations about its structure. We show that it is robust against typical image processing such as lossy compression. On the other hand, it is only of limited robustness against cropping. We also give some suggestions for improving the algorithm or its use.

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Proceedings of the 18th International Conference on Availability, Reliability and Security

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