TY - JOUR TI - Modified Playfair Cipher for Encrypting Images AU - Faisal Mohammed Abdalla AU - Khadiga Mohammed Adam Babiker JO - International Journal of Scientific Research in Computer Science, Engineering and Information Technology PB - Technoscience Academy DA - 2018/04/30 PY - 2018 DO - https://doi.org/10.32628/IJSRCSEIT UR - https://ijsrcseit.com/CSEIT1833311 VL - 3 IS - 3 SP - 1063 EP - 1068 AB - In this paper, a new extension of the Playfair cipher algorithm to encrypt images safer manner. The new method is created matrix of 16 × 16 based on the key being entered by the user to become more secretive, and then is taken image data byte by byte. In addition, the increasing complexity of the algorithm using masking and an XOR. That is, the key is used to generate XORed with the image to encrypt it. The experimental results showed that the use of slightly different secret keys, and the resulting encoded images makes it a completely different picture, and also encrypts the data that contain alphanumeric characters, integers, and most symbols