Abstract—New covert cryptography has solved the problem of protecting the anonymity of sender and receiver, as well as the disadvantage of traditional hiding and steganography methods that once their method is known, any one can find embedded message. However, this paper presents multilayer new covert audio cryptography as a developed model in order to get more secrecy. The proposed model uses two covert layers, each layer with different (technique and cover). This model has the ability to cryptographically hide secret audio messages in audio cover using wavelet transform, at first layer. At the second layer, the audio stegocover is hided inside image cover using masking method. The extraction is done using simple cryptographic process. The proposed model has been successfully simulated between two nodes at the Internet.
Index Terms—Information hiding, Masking, New covert cryptography, Wavelet transform.
Ziyad Tariq Mustafa Al-Ta’i is Head Department of Computer Science at College of Science, University of Diyala, Iraq, phone: 00964-17902267553, e-mail: firstname.lastname@example.org
Cite: Ziyad Tariq Mustafa Al-Ta'i, senior member IACSIT, "Development of Multilayer New Covert Audio Cryptographic Model," International Journal of Machine Learning and Computing vol. 1, no. 2, pp. 125-131, 2011.