Detector-Informed Batch Steganography and Pooled Steganalysis
Detector-Informed Batch Steganography and Pooled Steganalysis
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DOI：
10.1145/3531536.3532951
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发表时间：
2022-06
期刊：
影响因子：
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通讯作者：
Yassine Yousfi;Eli Dworetzky;J. Fridrich
中科院分区：
文献类型：
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作者：
Yassine Yousfi;Eli Dworetzky;J. Fridrich
我们研究了当发送方使用来自隐写检测器的反馈时的批量隐写问题。由于现代隐写分析检测器的高度非线性和非高斯响应，以及研究发送者检测器和典狱长检测器之间不可避免的不匹配的影响的必要性，这给表带来了额外的复杂性。基于甲骨文生成可能的封面图像，考虑了两个有效载荷散布器。为了更全面地评估安全性，设计并研究了三种不同的池策略。相对于以前的技术--探测器不可知的图像合并发送器--可以观察到显著的安全收益。人们密切关注典狱长可获得的信息对安全的影响。
We study the problem of batch steganography when the senders use feedback from a steganography detector. This brings an additional level of complexity to the table due to the highly non-linear and non-Gaussian response of modern steganalysis detectors as well as the necessity to study the impact of the inevitable mismatch between senders' and Warden's detectors. Two payload spreaders are considered based on the oracle generating possible cover images. Three different pooling strategies are devised and studied for a more comprehensive assessment of security. Substantial security gains are observed with respect to previous art - the detector-agnostic image-merging sender. Close attention is paid to the impact of the information available to the Warden on security.