A Robust Combination Of Watermarking and Cryptography For Video Sequence
Tạ Minh Thanh, Ta Minh Tam · Journal of Communications and Information Sciences · 2013
For effective digital right management (DRM) of digital multimedia, both watermarking technique and cryptography technique are required. However, general DRM system is achieved with individual function modules of cryptography and watermarking. Therefore, it has a problem that all original digital contents without watermarking information are temporarily disclosed with perfect condition via decryption process at user-side. This paper proposes a robust combination of watermarking and cryptography approach (CWCA) for video sequence. Experimental results with simulation confirmed that proposed CWCA keeps compatibility with multimedia data, and revealed that it is suitable for DRM in the network distribution system.