New Data Transmission Method Based On Book Cipher Enhanced With ASCII Mapping

There are several ways to achieve protection of information follow between user and client from attack, misuse or unauthorized access straightly, one of these ways is steganography, steganography is a science of secretly data transfer using different multimedia like audio, text, video or image as a carrier. In the current paper, the author proposes another steganography procedure that it is easy to find and hard to break by an outsider . It based on combine between ASCII Mapping Technology (AMT) with book cipher encryption method using the image as an encryption key for the book cipher. The (AMT) technique is used to create an encoded table by mapping the text message and match some bits with that of the image, The proposed procedure was tried and the outcome shows its robustness and low computational cost beside it maintain image quality.