Chameleon - A New Kind of Stream Cipher
FSE '97 Proceedings of the 4th International Workshop on Fast Software Encryption
SP '83 Proceedings of the 1983 IEEE Symposium on Security and Privacy
Grouping strategies for promoting image quality of watermarking on the basis of vector quantization
Journal of Visual Communication and Image Representation
A robust associative watermarking technique based on vector quantization
Digital Signal Processing
Adaptive data hiding for vector quantization images based on overlapping codeword clustering
Information Sciences: an International Journal
Secure watermark embedding through partial encryption
IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
Information Sciences: an International Journal
On Anti-Collusion Codes and Detection Algorithms for Multimedia Fingerprinting
IEEE Transactions on Information Theory
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The first joint fingerprinting and decryption (JFD) scheme proposed by Lin et al. in 2012 aims to protect the distribution of vector quantization (VQ) images. If the decrypted image is illegally redistributed, the fingerprint embedded in the image can be used to trace the traitor. However, this scheme is not secure enough, and it can be broken by a novel attack method proposed in this paper. The embedded fingerprint can be replaced arbitrarily, and therefore the traitor tracing would fail. Besides, the intercepted encrypted image using the static key-trees based approach of the original scheme is also cracked. To make improvements, a new JFD method using codebook partition is proposed. Experiments and analyses show that the proposed method outperforms the original one: the security is enhanced; both the robustness and fragileness are equipped; the fingerprint extraction is simplified; the distortion is limited; and at the same time, the computation and communication overheads are not increased.