• P.Sai Pavani
• Dr.U.V.Ratna Kumari

Telehealth and technology adoption for diagnosing diseases have become crucial during pandemic. Remote diagnosing of diseases requires medical images and their transmission through network. So, securing these medical images is important for both correct diagnosis and confidentiality. This paper introduces a encryption algorithm designed to secure medical images. To achieve this, the medical image is split into blocks. Subsequently these images undergo series of transformations like data substitution and scrambling. The jumbled picture is then decoded using a key generated with the use of a chaotic logistic map and tent map. We do thorough analyses of the security and time complexity of our suggested encryption technology to ensure its efficacy. Security assessment employs various metrics, including entropy, correlation coefficient, histogram differential attacks, key sensitivity, key space, and Peak Signal-to-Noise Ratio (PSNR). These measurements collectively evaluate the security of a system. The findings show that medical picture encryption provides a significant boost to security. Furthermore, a comparative analysis is conducted with several existing methods, revealing that our proposed encryption algorithm surpasses the performance of these methods in safeguarding medical images.

Encryption, chaos, logistic map, tent map

"A Encryption Algorithm for Medical Images using Image blocks and Chaos", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 10, page no.e86-e95, October-2023, Available :http://www.jetir.org/papers/JETIR2310325.pdf

"A Encryption Algorithm for Medical Images using Image blocks and Chaos", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 10, page no. ppe86-e95, October-2023, Available at : http://www.jetir.org/papers/JETIR2310325.pdf