Affordable Access

deepdyve-link deepdyve-link
Publisher Website

Cryptanalysis of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables

Authors
Type
Published Article
Publication Date
Submission Date
Identifiers
DOI: 10.1007/978-3-540-92957-4_78
arXiv ID: cs/0509035
Source
arXiv
License
Unknown
External links

Abstract

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.

Statistics

Seen <100 times