Secure Information Hiding Technologies Based on Spread Spectrum Sequences with Good Correlation Properties

我们利用完全互补码开发了信息隐藏技术，这是一种具有理想相关特性的扩频序列。具体地说，提出了一种数字水印方案、一种数字指纹方案和一种利用图像数据的隐写方案。通过数值实验对这些方案的性能进行了评价，包括秘密信息的透明性、提取的正确性以及对各种攻击的鲁棒性。结果表明，所提方案优于基于其他扩展序列的方法。

We developed information hiding technologies using complete complementary codes, one of the spread spectrum sequences with ideal correlation properties. Specifically, a digital watermarking scheme, a digital fingerprinting scheme, and a steganography scheme using image data are proposed. The properties of these schemes are evaluated through numerical experiments on the transparency of the secret information, correctness of the extraction and the robustness against various attacks. As a result, it is shown that the proposed schemes have superior to the method based on other spread sequences.