On the study of overhead reduction for Confused Document Encrypting Schemes

Confused Document Encrypting Scheme is a technique for data hiding. It involves concealing the secret text inside the cheating text. If the cheating text is intercepted, the secret text may still be undetected. This study focuses on reducing the amount of data transmission in delivering confused documents. We can use any article on the internet as a cheating text. The sender only needs to transmit the encrypted Uniform Resource Locator (URL), and then the receiver can follow the URL and download the cheating text. This avoids transmitting large amounts of cheating text, which is a major drawback of traditional confused document encrypting schemes. In this paper, we proposed a new approach which can improve existing confused document encrypting schemes by reducing their transmission overhead, and thus makes it suitable for wireless environment with low data rate.