Data Hiding on Text Using Big-5 Code

This paper presents a text hiding scheme using Big-5 code. Some text-hiding schemes embed secret information at between-word and between-character by adding tabs or spaces. Liu et al. proposed a Chinese text data hiding scheme to divide the Chinese character into left and right parts for data embedding. However, the adjusted spaces or divided characters of between-word may look like strange and it may expose the risk of security. Therefore, the authors intend to design a text hiding scheme using Big-5 code. The secret is hidden into spaces between-word and between-character of a cover text by placing a Big-5 code either 20 or 7F.