Abstract

Many users are concerned about the safety of their data stored in the cloud, viewing their local servers as a safer alternative due to perceived control. However, cloud service providers often boast superior security measures and employ specialized security experts, making data stored in the cloud potentially more secure. New files are initially saved in the cloud and encrypted using the QAES technique when the data holder expires. Next, the data owner receives the encrypted data request. Data is analysed by the sender and user before encoded documents are sent to the cloud. The key will be used to remove encryption from later data. Data that has already been encrypted is delivered to the data user. Data users should submit new requests if they are unable to obtain the desired data. The latest advancement is centered on the combination of an improved version of Quantum Key Distribution (QKD) in AES. Quantum-AES (QAES), a unique quantum symmetric encryption technique, is the outcome of this integration. QAES is based on the invention of the quantum cipher key based on dynamic quantum S-Boxes (DQS-Boxes), as opposed to the widely used static S-Boxes. This approach has the result of enhancing security. Comparably, time is needed to build files more quickly than they do presently. This method prevents brute force assaults since it makes use of the QAES algorithm, which offers extra security.