Research On Text Steganography Based On Stroke Order Of Chinese Characters

Information hiding is an important research direction in the field of cyberspace security.Information hiding is a technique of hiding secret information into an information carrier and completing secret information transmission without being perceived by an attacker.Information hiding can be applied to vectors such as video,audio,images and text.Because text is used most frequently,this paper focuses on the study of text information hiding.Moreover,due to the existing information hiding schemes mostly modify the information carrier to different granularities,It is difficult to resist all kinds of steganographic detection techniques,so this paper designs a non-carrier information hiding method with strong anti-stealth detection.Uncarried information hiding is the use of appropriate natural text in big data to deliver secret information without any modification.The specific work of this paper is as follows:A text-free information hiding scheme based on Chinese character mathematical expression is proposed.The scheme used Chinese character stroke encoding to process the carrier text,and use Chinese character mathematical expressions to indicate the position of the confidential information in the natural text.The mathematical expression and the carrier text converted by the Chinese character mathematical expression are transmitted to the receiving end.The receiving end can obtain the encoding method including the ciphertext and the information converted into the secret information according to the received carrier text and the mathematical operation formula,then obtain the secret information.Experiments proved that the steganography success rate of this method can reach 100%,and it has better concealment and robustness.A text-free information hiding scheme based on Chinese character stroke sequence coding is proposed.This scheme used Chinese character stroke sequence coding to design pointing identifier to determine the position of secret information in the carrier text,and uses the classifier to determine the keyword.This pointing identifier is selected according to the identity feature of receiving end,which ensures that the receiving end extracts the secret information from the carrier text without any auxiliary information.The experiment shows that this algorithm has a higher steganization success rate and is also better in hiding capacity and robustness.