As far as the latest technological improvements are concerned, digital systems more become popular than the past. Despite this growing demand to the digital systems, content copy and attack against the digital cinema contents becomes a serious problem. To solve the above security problem, we propose “traceable watermarking using Hash functions for digital cinema system. Digital Cinema is a great application for traceable watermarking since it uses watermarking technology during content play as well as content transmission. The watermark is embedded into the randomly selected movie frames using CRC-32 techniques. CRC-32 is a Hash function. Using it, the embedding position is distributed by Hash Function so that any party cannot break off the watermarking or will not be able to change. Finally, our experimental results show that proposed DWT watermarking method using CRC-32 is much better than the convenient watermarking techniques in terms of robustness, image quality and its simple but unbreakable algorithm.
 Akio, Miyazaki, Digital Watermarking for images.IEEE Trans.
Fundamentals, Vol.E85-A,NO.3 March 2002, pp. 2.
 N. J. Mathai, D. Kundur and A. Sheikholeslami, "HW Implementation
Perspectives of Digital Video Watermarking," IEEE Transactions on
Signal Processing, vol. 51, no. 4, pp. 925-938, April 2003
 Hisashi. Inoue, "A Digital Watermark method using the Wavelet
Transform for Video Data" ,
IEICE Trans.Fundamentals,Vol.E83-A,No.1 Jan2000.
 Suzuki, Junshi, "JPEG2000 Technology" by Ohm Publishing, Jan 2001.
 Rohm Corp, "Jpeg2000 Coder LSI " http://wwww.rohm.com
 Xilinx Corp, ".Digital Cinema Applications" http://www.xilinx.com
 "Rijndale" http://www.esat.kuleuven.ac.be/~rijmen/rijndael/
 Digital Cinema Initiatives " Digital Cinema System Specifications v2.0",
2003 , http://www.dcci.com
 Olympus Corp, "R&D Center, IS Division Project , Planning Group"
 Japan Victor Corp "ILA Center Division" http://www.victor.co.jp
 NTT Telecommunications "Yokotsuka R&D Division"