基于ZUC与DWT-SVD的交换加密水印算法.

In order to effectively solve the problems of multimedia data security and copyright protection in the process of transmission and storage, this paper proposed a commutative encryption and watermarking algorithm based on Zu Chongzhi(ZUC) stream cipher algorithm and DWT-SVD. Based on the invariance of the singular value, the algorithm embedded the watermark into the singular value, and used the ZUC algorithm to permutate and encrypt the set of the singular value matrix and the set of the singular matrix respectively. The sequence of embedding operation and encryption operation did not affect the generation of the watermarked ciphertext, meanwhile, both watermarked ciphertext and decrypted plaintext can extract watermark completely. The experimental results show that the watermark has good invisibility, and the algorithm has high security and a certain robustness. [ABSTRACT FROM AUTHOR]