Journal of Information Security Research Samir Kumar Bandyopadhyay 8 3 2017 http://www.dline.info/jisr/fulltext/v8n3/jisrv8n3_3.pdf In this paper a complex encryption methodology has been employed to perform a high level data security. Here a two level encryption technique has been described. In first level a pattern matching array has been created in such a way such that all possible combination of any 4 bits sequences are present there. By using this pattern matching array the positional value of the secret message has been identified and in second level the positional value has been embedded into the LSB of the cover file. This technique is independent of the size of the text message and message retrieved in the receiving end is totally lossless .The quality of the proposed method is evaluated by using two factors Means square error(MSE) and signal to noise ratio(SNR) and finally a comparison has been done with different traditional steganography techniques. According to different experimental results and the comparison our method is extremely efficient in terms of encryption and the size of the text.