Low-complexity technique for secure storage and sharing of biomedical images

In this paper, we present an apparently trivial but powerful technique for secure storage and sharing of medical images using simple bit-level scrambling. Unlike the conventional cryptographic techniques, it involves very low computational complexity. Unless some one knows the keys for deciphering, cannot extract the original image from the encrypted blocks of image by any kind of attack. The proposed technique is useful for secure storage and sharing of large volume of medical images for real-time healthcare applications