Attacks on Copyright Marking Systems
Proceedings of the Second International Workshop on Information Hiding
Public-key cryptosystems based on composite degree residuosity classes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Multi-Bit Embedding in Asymmetric Digital Watermarking without Exposing Secret Information
IEICE - Transactions on Information and Systems
Semi-blind Fingerprinting Utilizing Ordinary Existing Watermarking Techniques
IWDW '09 Proceedings of the 8th International Workshop on Digital Watermarking
| Hi-index | 0.00 |
A new method of secure digital watermarking detection protocol is proposed in this paper. Our methodology applies to the protection of the digital contents against illegal use. Based upon the principle of our methodological induction, an improvement of protecting copyright contents has been achieved by means of allowing watermark verifier to detect the embedded information with no secret information exposed in extraction process. We set force our method by applying such a combination of patchwork watermark and public-key encryption protocol. Furukawa proposed a secure watermark detection scheme [4] in 2004 using Paillier encryption, but its drawback is the heavy overhead in processing time. We replace the cryptosystem with El Gamal encryption to improve performance, and clarify improvement in processing time and robustness against attacks based on experimental results.