Enhanced Two Dimensional Circular Encryption Algorithm
Vikas Mittal
Vikas Mittal, Maharaja Agrasen College, University of Delhi,  India.
Manuscript received on May 25, 2014. | Revised Manuscript received on June 06, 2014. | Manuscript published on June 30, 2014. | PP: 20-23  | Volume-3, Issue-5, June 2014.  | Retrieval Number:  E3063063514/2013©BEIESP

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Abstract: In recent years, many multimedia and image encryption techniques based on chaotic maps have been proposed. Recently, a new signal security system called TDCEA (two-dimensional circulation encryption algorithm) was proposed for real-time multimedia data transmission. There exist some essential security defects in TDCEA. This paper gives an analysis on the security of TDCEA and proposed enhanced encryption algorithm. Proposed encryption scheme is based on two digital chaotic maps, which in turn are used to generate two different chaotic sequences. Detail description of the security analysis of TDCEA, proposed encryption technique and performance analysis of enhanced encryption algorithm on various parameters of security is given in later sections of this paper.
Keywords: Multimedia, Encryption, Decryption, Two Dimensional Circular Encryption Algorithm (TDCEA), Piecewise Linear Chaotic Map (PWLCM), Enhanced Two Dimensional Circular Encryption Algorithm (Enhanced TDCEA).