Data Encrypting in a Binary Image Base on Modified Data Hiding Method

The proposed encryption method manipulates sub-divided blocks using modified bit position to replace a secret bit. The sub-divided block contains three or more pixels of the host binary image. For every block decides to hide a secret bit. By finding the pixel position to insert a secret bit for each block, the image quality of the overt binary image can be improved. The method is fast calculation, simple, increase the storage capacity. The simulation shows that the proposed method can improve with respect to a previous work.