Robust medical image encryption based on DNA-chaos cryptosystem for secure telemedicine and healthcare applications. - Walid El Shafai; Fatma Khallaf; El-Sayed M. El-Rabaie; Fathi E. Abd El-Samie (J. Ambient Intell. Humaniz. Comput., 2021)

Proposed neural SAE-based medical image cryptography framework using deep extracted features for smart IoT healthcare applications. - Walid El Shafai; Fatma Khallaf; El-Sayed M. El-Rabaie; Fathi E. Abd El-Samie (Neural Comput. Appl., 2022)

A Multi-Stage Security Solution for Medical Color Images in Healthcare Applications. - Walid El Shafai; Fatma Khallaf; El-Sayed M. El-Rabaie; Fathi E. Abd El-Samie; Iman M. Almomani (Comput. Syst. Sci. Eng., 2023)

A novel hybrid cryptosystem based on DQFrFT watermarking and 3D-CLM encryption for healthcare services. - Fatma Khallaf; Walid El-Shafai; El-Sayed M. El-Rabaie; Naglaa F. Soliman; Fathi E. Abd El-Samie (Frontiers Inf. Technol. Electron. Eng., 2023)

Proposed 3D chaos-based medical image cryptosystem for secure cloud-IoMT eHealth communication services. - Walid El-Shafai; Fatma Khallaf; El-Sayed M. El-Rabaie; Fathi E. Abd El-Samie (J. Ambient Intell. Humaniz. Comput., 2024)

Implementation of quaternion mathematics for biometric security. - Fatma Khallaf; Walid El-Shafai; El-Sayed M. El-Rabaie; Mahmoud Nasr; Mohammed Essam; E. S. Shoukralla; Saied M. Abd El-atty; Fathi E. Abd El-Samie (Multim. Tools Appl., 2024)

A Systematic Review of New Technologies for Cybersecurity Healthcare Applications: A Systematic and Comprehensive Study. - Fatma Khallaf; Walid El Shafai; El-Sayed M. El-Rabaie; Fathi E. Abd El-Samie (Trans. Emerg. Telecommun. Technol., 2025)

Blockchain-based color medical image cryptosystem for industrial Internet of Healthcare Things (IoHT). - Fatma Khallaf; Walid El-Shafai; El-Sayed M. El-Rabaie; Fathi E. Abd El-Samie (Multim. Tools Appl., 2025)