Abstract
With the rapid development of Internet, safe covert communications in the network environment become an essential research direction. Steganography is a si gnificant means that secret information is embedded into cover data imperceptibly for transmission, so that information cannot be easily aware by others. Text Steganography is low in redundancy and related to natural language rules these lead to limit manipulation of text, so they are both great challenges to conceal message in text properly and to detect such conceal ment. This study proposes a novel text steganography method which takes into account the Font Types. This ne w method depends on the Similarity of English Font Types; we called it (SEFT) technique. It works by rep lace font by more similar fonts. The secret message was encoded and embedded as similar fonts in capital Letters of cover document. Proposed text steganogra phy method can works in different cover documents of different font types. The size of cover and stego d ocument was increased about 0.766% from original size. The capacity of this method is very high and the se cret message was inconspicuous to an adversary.
Highlights
Steganography is the ancient art and young science of hidden communication
This study proposes a novel text steganography method which takes into account the Font Types
Proposed text steganography method can works in different cover documents of different font types
Summary
Steganography is the ancient art and young science of hidden communication. Earlier information hiding methods merely embed payload (external information) into a cover (e.g., text document, image and audio) and in recent years, Steganography literally means “covered writing” and is the art of hiding the very existence of a message. The studies on text steganography is relatively backward compared to those mainstream hiding methods that use images, audios and videos as cover data, which specialized data hiding methods are proposed to serve is due to the lack of redundancy in text (Liu et al, 2009). A text steganography method used in cover content is carefully manipulated to encode payload MS-Word documents is proposed, which depending on Corresponding Author: Wesam Bhaya, Department of Information Networks, Information Technology Collage, Babylon University, Babil, Iraq.
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