Cryptanalysis of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables
<|reference_start|>Cryptanalysis of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables: This paper studies the security of a recently-proposed MPEG-video encryption scheme based on secret Huffman tables. Our cryptanalysis shows that: 1) the key space of the encryption scheme is not sufficiently large against divide-and-conquer (DAC) attack and known-plaintext attack; 2) it is possible to decrypt a cipher-video with a partially-known key, thus dramatically reducing the complexity of the DAC brute-force attack in some cases; 3) its security against the chosen-plaintext attack is very weak. Some experimental results are included to support the cryptanalytic results with a brief discuss on how to improve this MPEG-video encryption scheme.<|reference_end|>
@article{li2005cryptanalysis,
    title={Cryptanalysis of an MPEG-Video Encryption Scheme Based on Secret Huffman
  Tables},
    author={Shujun Li, Guanrong Chen, Albert Cheung and Kwok-Tung Lo},
    journal={Advances in Image and Video Technology - Third Pacific Rim
  Symposium, PSIVT 2009, Tokyo, Japan, January 13-16, 2009. Proceedings,
  Lecture Notes in Computer Science, vol. 5414, pp. 898-909, 2009},
    year={2005},
    doi={10.1007/978-3-540-92957-4_78},
    archivePrefix={arXiv},
    eprint={cs/0509035},
    primaryClass={cs.MM cs.CR}
}