Secure Data Transfer through Audio Signal with LSA

R  Valarmathi   and G  M  Kadhar Nawaz  nbsp

doi:10.17485/ijst/2015/v8i1/52396

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Secure Data Transfer through Audio Signal with LSA

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2015/v8i1/52396

Year: 2015, Volume: 8, Issue: 1, Pages: 17-22

Review Article

Secure Data Transfer through Audio Signal with LSA

R. Valarmathi^1* and G. M. Kadhar Nawaz²

¹Bharathiar University, Coimbatore, Tamilnadu, India; India; [email protected]

²Department of MCA, Sona College of Technology, Salem-5, Tamilnadu, India

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Today’s large demand of internet applications requires data to be transmitted in a secure manner. Data transmission in public communication system is not secure because of interception and improper manipulation by eavesdropper. So the attractive solution for this problem is steganography. Steganography is the scheme of hiding the existence of secret information by concealing it into another medium such as image, video or audio. Cryptography is used to encrypt the data so that it is unreadable by a third party. So to add another layer of protection we can encrypt the key of the hidden message. This paper proposes a new algorithm to hide the data in Audio signal and it uses Linear Subsequence Algorithm (LSA) which increases data protection.

Keywords:
Cryptography, Encryption, Linear Subsequence Algorithm (LSA), Steganography