A Modified Playfair Cipher for Encrypting Digital Images

Main Article Content

Safwat Hamad Amal Khalifa Ahmed Elhadad Saad Rida


In this paper, a new extension of the Playfair cipher algorithm is proposed to encrypt image data more securely. The proposed method constructs a 16×16 secret key matrix to scramble image data byte by byte. In addition, the algorithm complexity is increased using masking and XOR procedure. That is, the key is used to generate a mask that is subsequently XORed with the scrambled image. Experimental results showed that using two slightly different secret keys, the resultant encrypted images are still completely different.

Article Details

How to Cite
HAMAD, Safwat et al. A Modified Playfair Cipher for Encrypting Digital Images. Journal of Communications and Computer Engineering, [S.l.], v. 3, n. 2, p. 1-9, jan. 2014. ISSN 2090-6234. Available at: <http://m-sciences.com/index.php?journal=jcce&page=article&op=view&path%5B%5D=731>. Date accessed: 15 dec. 2017. doi: https://doi.org/10.20454/jcce.2013.731.