Hiding of Speech based on Chaotic Steganography and Cryptography Techniques
Journal: International Journal of Engineering Research (IJER) (Vol.4, No. 4)Publication Date: 2015-04-01
Authors : Abbas Salman Hameed;
Page : 165-172
Keywords : Steganography; Cryptography; Fractional Order chaotic system; Modified Android Cat Map;
Abstract
The technique of embedding secret information into cover media, like image, video, audio and text called Steganography, so that only the sender and the authorized recipient who have a key can detect the presence of secret information. In this paper Steganography and Cryptography techniques of speech present with Chaos. Fractional order Lorenz and Chua systems that provides an expanded in key space are used to encrypt speech message. The large key space addition to all properties of randomness and nonlinearity which are possessed these chaotic systems ensure a highly robustness and security for cryptography process. As well as Modified Android Cat Map (MACM) offers additional space and security for steganography process. The irregular outputs of the MACM are used in this paper to embed a secret message in a digital cover image. The results show a large key sensitivity to a small change in the secret key or parameters of MACM. Therefore, highly security hiding for speech will be guaranteed by using this system.
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Last modified: 2015-04-01 15:21:56