Joint Watermarking-Encryption-ECC for Patient Record Security in Wavelet Domain

Maintaining electronic patient records is the primary role for the fruitful implementation of the telehealth services in urban areas to enhance the quality of healthcare. These records frequently shared in-between professionals and healthcare centers so as to develop efficient tool(s) for accurate diagnosis purpose. However, protection of these records is a challenging task in the current era. In this article, we develop a joint watermarking-encryption- error correcting code (ECC) technique for the purpose of securing patient records. The suggested method involves three major steps as follows: 1) watermarks generation and scrambling, 2) encryption of cover and generated watermark via Paillier cryptosystem, and 3) imperceptibly embedding and robustly recovery/extraction of the watermarks. Experimental results indicate that the proposed technique offers high robustness and fulfills all watermarking needs for telehealth applications in terms of imperceptibility, robustness, capacity, and security. Furthermore, the proposed method achieves better robustness against varying attacks, and outperforms former techniques.