Title :
The DCSK and Auto-Generated Encrypt Key Watermarking Scheme in DM Copyright Protection
Author :
Zhao Feng ; Sun Tanfeng ; Li Sheng-hong
Author_Institution :
Dept. of Sci. & Technol., Guilin Univ. of Electron. Technol., Guilin, China
Abstract :
In this paper, we present a novel DCSK-based coding encryption method of DMCP information security. Firstly the DMCP information is got by proprietor or authority as watermarks. Then encrypt key is generated by DMpsilas data. To encrypt watermarkspsila information, we apply the chaos sequence. Then we embed the encrypted sequence into the image based on wavelet approximation zero-tree theory. As a result, DCSK-based watermarking has more secure and secret characteristic in protecting DMCP information. The encrypt key can be computed by itself, though images data may be of some loss.
Keywords :
approximation theory; copyright; cryptography; embedded systems; image coding; watermarking; wavelet transforms; DCSK; DM copyright protection; autogenerated encrypt key watermarking scheme; chaos sequence; coding encryption method; difference chaos shift key; wavelet approximation zero-tree theory; Chaos; Chaotic communication; Copyright protection; Cryptography; Delay; Delta modulation; Discrete cosine transforms; Frequency; Information security; Watermarking; Approximation Zero-tree; Chaos Secrecy Communication; Difference Chaos Shift Key; Harr Wavelet; Watermarking;
Conference_Titel :
Information Technology and Computer Science, 2009. ITCS 2009. International Conference on
Conference_Location :
Kiev
Print_ISBN :
978-0-7695-3688-0
DOI :
10.1109/ITCS.2009.209
