Data Steganography on VoIP through Combination of Residue Number System and DNA Sequences

Journal of Advances in Computer Research

شناسنامه علمی شماره، دوره 5، شماره 2، مرداد 2014، صفحه 7-22   

نویسندگان

Azin Azizifard^* ؛ Mohamad Qermezkon؛ Tahereh Postizadeh؛ Hamid Barati

Department of Computer Engineering, Dezfoul Branch , Islamic Azad University, Dezfoul Iran

چکیده

Today, optimal performance and cost advantages of using Internet telephony are obvious. Despite current standardized techniques, voice transferring through protocol (VoIP) has lower security than traditional telephony. One of the most important security issues which should be noticed in using VoIP is end -to-end user² identity, i.e. when  there is a connection between user A and B, user A should be assured of the identity of user B, and vice versa. The authentication of identity is one of so important information that could guarantee the security and integrity of information [1]. In this study, the security of VoIP and data steganography through the protocol has been investigated. Finally, a technique for data steganography⁴ over this protocol will be proposed using the method of Residue Number System³. Also, using the combination of RNS, DNA sequences, and Huffman compressing algorithm, an algorithm is proposed for data steganography through VoIP. The algorithm improves security of the process of transmission of hidden text and can use the bandwidth effectively.

کلیدواژه‌ها

Voice Over Internet Protocol؛ Steganography؛ Session Initiation Protocol (SIP)؛ Residue Number System؛ DNA String؛ Huffman Algorithm