Cryptanalysis of a new signal security system for multimedia data transmission

Li, CQ, Li, SJ, Chen, GR, Chen, G and Hu, L (2005) Cryptanalysis of a new signal security system for multimedia data transmission EURASIP Journal on Applied Signal Processing, 8, 962703. pp. 1277-1288.

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Abstract

Recently, a new signal security system called TDCEA (two-dimensional circulation encryption algorithm) was proposed for real-time multimedia data transmission. This paper gives a comprehensive analysis on the security of TDCEA. The following security problems are found: (1) there exist some essential security defects in TDCEA; (2) two known-plaintext attacks can break TDCEA; (3) the chosen-plaintext and chosen-ciphertext versions of the aforementioned two known-plaintext attacks can break TDCEA even with a smaller complexity and a better performance. Some experiments are given to show the security defects of TDCEA and the feasibility of the proposed known-plaintext attacks. As a conclusion, TDCEA is not suitable for applications that require a high level of security.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences > Computing Science
Authors :	Authors Email ORCID Li, CQ UNSPECIFIED UNSPECIFIED Li, SJ UNSPECIFIED UNSPECIFIED Chen, GR UNSPECIFIED UNSPECIFIED Chen, G UNSPECIFIED UNSPECIFIED Hu, L UNSPECIFIED UNSPECIFIED
Date :	31 May 2005
Identification Number :	10.1155/ASP.2005.1277
Related URLs :	Author Publisher
Depositing User :	Symplectic Elements
Date Deposited :	29 Jun 2012 11:01
Last Modified :	23 Sep 2013 19:26
URI:	http://epubs.surrey.ac.uk/id/eprint/532628

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