A Language Independent Platform for High Secured Communication Using Encrypted Steganography

Computer usage is increasing, for both social and business areas, and it will continue to do so. This naturally leads to an increase in the way in which we as individuals and organizations we work for may be attacked.Increase of cyber-crime has compelledto re-think for a secure communication medium in our day-to-day life. Protecting the information during transmission is a foremostchallenge against eavesdroppers. Encryption is one of the widely used techniques that ensure the security of the message. However, sending encrypted messages often draw eavesdropper’s attention. Steganography is a method of letteringsecret messages in a way that nobody except for the sender and the recipient would suspect the existence of the hidden message. In other words, it’s an art/science of hiding messages. Steganography is often combined with cryptography so that even if the message is discovered it cannot be read.Historical steganography involved techniques such as disappearing ink or microdots. Modern steganography involves in computer files such as images, audio, video files and even in text documents. However, each stereographic technique is focused in just one medium; such as image or audio file and etc. And each steganographic algorithms had independent implementation; as a resultthere is no generic framework or application that will produce stegano medium for an end-user. In this paper, a generic framework is presented, which provides generic steganographic functionality via well-defined Application Programming Interface (API). So that the advanced developers can develop framework modules, this can be used by the end-users directly as stegangraphicapplication. And also this paper describes a newly invented steganographic technique which utilizes the inter-character spacing of a Rich-Text-Format (RTF) document. This technique can be used to transmit concealed messages in multi-language or combination of languages, which can be represented in Unicode. As an additional optimization technique; user defined code based (UDC) technique is also proposed to achieve compression of Unicode languages. Another advantage is that this technique can be used to send multi different language secret messages through the communication channel.