Scalable and robust cryptography approach using cloud computing

With the development of technology and cloud computing, many users use cloud computing to manage civil or military services and projects in a cloud network, saving both their common data as well as sensitive or personal information remotely. Being multi-accessible and relatively low in cost, it is regarded as a flexible process wherein the user can increase or reduce these factors according to their needs, such as the memory, communication speed, expansion, and others. Unfortunately, the security of the cloud and the preservation of confidential information still remain a major concern for users of this service, especially for enterprises that need confidentiality in the use of technology. Therefore, this work comes to play an integral role in the increase of the security of the cloud in a technical, practical and modern way, using mixed encryption, information hiding, and information processing remotely. In this work, the RSA and RGBA images are used to encrypt and hide information in Amazon Web Services (AWS), enabling the act of cloud computing remotely between the main site (admin) and the clients. The results show a good performance in terms of time, entropy, RISE and PSNR for the evaluation process.