In recent years, the Internet of Things (IoT) technologies have been developed to make great progress for nuclear energy applications. These applications require advanced schemes to secure sensitive information from incremental attacks and sabotage processes. The schemes should meet the major security attributes, including confidentiality, availability, and integrity. This paper introduces an information security scheme for transmitting sensitive information with secure monitoring of the critical radiation levels at nuclear facilities. It is evaluated by integrating the cryptography and steganography techniques with cloud computing services. The cryptography techniques are based on Advanced Encryption Standard (AES) and Rivest, Shamir-Adleman (RSA) algorithms. The scheme uses the extracted cryptography keys from authenticated biometric attributes and is suitable for emergencies through a low computational time. It allows securing access for encrypted sensitive measurements, files, and images with high data integrity and confidentiality.
Furthermore, it hides confidential, sensitive information with great Capacity and imperceptibility through the transmitted carrier images. The security performance analysis ensures the robustness of the introduced scheme against various attacks through authentication, encryption, and information-hiding techniques. Finally, the paper discusses the resistance of the introduced scheme against serious attacks such as the man in the middle, noise, and Distributed Denial of Service (DDOS) attacks.