A fast video encryption scheme suitable for network applications

Video encryption is suitable for video protection. A video encryption scheme combining an encryption process with the MPEG2 encoding process is presented. It encrypts I-frames with color plane confusion, coefficient confusion and sign encryption, encrypts the intra-macroblocks in P/B-frames with coefficient confusion and sign encryption, and encrypts the inter-macroblocks with motion vector encryption. Theoretical analysis and experimental results show that the scheme is secure, of low cost, supports direct bit-rate control and is more robust to transmission errors. These properties make it suitable for multimedia applications with real-time operation and a direct bit-rate control requirement, such as video conference, multimedia network, wireless or mobile multimedia, and so on.

[1]  C.-C. Jay Kuo,et al.  Efficient multimedia encryption via entropy codec design , 2001, IS&T/SPIE Electronic Imaging.

[2]  Bharat K. Bhargava,et al.  MPEG Video Encryption in Real-time Using Secret Key Cryptography , 1999, PDPTA.

[3]  Wu-chi Feng,et al.  Efficient multi-layer coding and encryption of MPEG video streams , 2000, 2000 IEEE International Conference on Multimedia and Expo. ICME2000. Proceedings. Latest Advances in the Fast Changing World of Multimedia (Cat. No.00TH8532).

[4]  C.-C. Jay Kuo,et al.  Fast encryption methods for audiovisual data confidentiality , 2001, SPIE Optics East.

[5]  Lei Tang,et al.  Methods for encrypting and decrypting MPEG video data efficiently , 1997, MULTIMEDIA '96.

[6]  C. J. Kuo,et al.  A new signal encryption technique and its attack study , 1991, Proceedings. 25th Annual 1991 IEEE International Carnahan Conference on Security Technology.

[7]  Wenjun Zeng,et al.  A format-compliant configurable encryption framework for access control of multimedia , 2001, 2001 IEEE Fourth Workshop on Multimedia Signal Processing (Cat. No.01TH8564).

[8]  Yossi Matias,et al.  A Video Scrambling Technique Based On Space Filling Curves , 1987, CRYPTO.

[9]  Marco Mattavelli,et al.  Cryptosystem architectures for very high throughput multimedia encryption: the RPK solution , 1999, ICECS'99. Proceedings of ICECS '99. 6th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.99EX357).