Data Hiding Method Based on 3D Magic Cube

Abstract

Medical records are extremely sensitive information and may cause a violation of patients' rights if the data is captured or altered. Such data requires uncompromising security during transmission or when the data is stored in medical datacenters. The most commonly used procedure is to hide sensitive information inside a cover medium without incurring any increase in data size or computational overhead. Even though many steganography techniques have been proposed in recent years, only a few have addressed issues related to protecting medical data. In this paper, we proposed a data hiding method based on magic cube generated using magic matrix. In the proposed method, 9 bits of secret data were embedded in each group of 4 pixels using secret keys that scattered values in the square template to make it more unpredictable. Experimental results showed that the proposed method achieved an embedding capacity of 2.25 bpp and an average PSNR of 44 dB outperforming previous methods.

Keywords

• Steganography
• magic cube
• irreversible information hiding
• magic matrix
• embedding capacity