Character Pair Text Steganography Based on the Enhanced
Francis Xavier Kofi Akotoye, Y. E. Yakavor, J. Kwofie, Fahd-La Tirogo · 2018
Hiding data in text has always been a challenge because textual media contains limited or no redundant features that could be exploited to achieve steganographic effect. This presents a limited space for implementing text steganography that satisfies the requirements of invisibility, high capacity and robustness. We propose an algorithm that improves the paragraph approach by considering pairs of starting and ending characters according to levels in a word for embedding. The process is computationally simple, and experimental results have shown a capacity ratio of 4%, which is higher than the original method's embedding ratio of 2%.