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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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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 :
Li, CQ
Li, SJ
Chen, GR
Chen, G
Hu, L
Date : 31 May 2005
Identification Number : 10.1155/ASP.2005.1277
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 29 Jun 2012 11:01
Last Modified : 31 Oct 2017 14:35

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