An algorithm for generating digital watermarks robust against brute-force attacks

This paper presents a new method for high-capacity robust watermarking of hyperspectral images. A new algorithm for two-dimensional “noise-like” watermarking patterns generation is proposed as part of robust watermark embedding and detection procedures. The experimental research provided in this work shows that the average complexity of the brute-force key retrieval attack can be increased to 10 14 watermark extraction attempts (compared to 10 4-10 5 for known robust watermarking schemes). Experimental results also show that the watermark preserves its robustness against lossy compression of host video, at the same time preserving a higher video quality ( PSNR up to 51dB) compared to known wavelet-based and DCT-based watermarking algorithms.