On the Security of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables

SJ Li; G Chen; A Cheung; KT Lo; M Kankanhalli

doi:10.1007/978-3-540-92957-4_78

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On the Security of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables

Conference presentation

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On the Security of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables

SJ Li, G Chen, A Cheung, KT Lo and M Kankanhalli

Advances in Image and Video Technology Third Pacific Rim Symposium, PSIVT 2009, Tokyo, Japan, January 13-16, 2009. Proceedings, Vol.LNCS 5, pp.898-909

3rd Pacific-Rim Symposium on Image and Video Technology (PSIVT 2009) (Tokyo, JAPAN, 13/01/2009 - 16/01/2009)

2009

DOI: https://doi.org/10.1007/978-3-540-92957-4_78

Abstract

MULTIMEDIA ENCRYPTION

DIGITAL VIDEO

ALGORITHMS

DESIGN

This paper re-studies the security of an MPEG-video encryption scheme based on secret Huffman tables. The present cryptanalysis shows that: 1) the key space of the encryption scheme is not sufficiently large against divide-and-conquer (DAC) ciphertext-only attack; 2) its security against the chosen-plaintext attack is very weak. The insecurity is mainly due to the separated use of different Huffman tables for different sets of syntax elements. A brief discussion on how to improve this MPEG-video encryption scheme is also given.

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Title: On the Security of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables
Creators: SJ Li
G Chen
A Cheung
KT Lo
M Kankanhalli
Contributors: T Wada
F Huang
S Lin
Springer-Verlag GmbH (null)
Publication Details: Advances in Image and Video Technology Third Pacific Rim Symposium, PSIVT 2009, Tokyo, Japan, January 13-16, 2009. Proceedings, Vol.LNCS 5, pp.898-909
Conference: 3rd Pacific-Rim Symposium on Image and Video Technology (PSIVT 2009) (Tokyo, JAPAN, 13/01/2009 - 16/01/2009)
Date published: 2009
Date submitted: 02/05/2012
Identifiers: 99515209202346
Academic Unit: Department of Computer Science
Resource Type: Conference presentation

On the Security of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables

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