LCS based text steganography through Indian Languages

Abstract

Steganography is the method to hide a message inside another message without drawing any suspicion to the others and that the message can only be detected by its intended recipient. With the other steganography methods such as Image, Audio, Video, a number of text steganography algorithms have been introduced. This paper presents some new approaches for steganography in Indian Languages. Considering the availability of more characters and flexible grammar structure of Indian Languages this approach hide the secret message in the text by creating meaningful sentences after finding the longest common subsequence of two binary string among which one is the secret message and another may be any binary string. The collection of these created Indian sentences will be used as the cover media for this steganography method. Similarly by applying the reverse method to the cover file that is after finding the longest common subsequence of sentences from the cover file and replacing the matched character by the bits of another binary string the system extract the original message from the cover file.