information hiding using E-mail cards

Abstract

Steganography, is the hiding and transmitting secret messages through apparently innocuous carriers in an effort to conceal the existence of them. The carrier can be anthing used to transfer information, including, e-mail, audio, video, images, messages, disk partitions and disk space. The aim of the research is for hiding a text message in the unused spaces of the e-mail card structure which is designed by Macromedia Flash software (SWF file).Macromedia Flash (SWF (Shockwave File) file) has been chosen because as it is widely used in Internet (Web pages), is recognized by all browsers and it is easily distributable which ensures that it lends itself to this type of activity without drawing attention to itself.The research studies different types of e-mail cards and show the possibility of them to hide secret message. The research deduces that the e-mail card which is designed from sound, animation and moving image is good for hiding (because it contains many unused spaces available for hiding).