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Mobile cloud computing is a technology for providing services such as software, hardware (including virtual), and bandwidth over the Internet. Mobile devices are included for learning, especially smartphones. Mobile cloud computing technology is growing rapidly among customers and many companies such as Apple, Google, Facebook and Amazon,with rich users. Users can access their data anytime, anywhere, even from any device, including mobile devices, using cloud storage services, although these properties offer flexibility and scalability in data management, but at the same time they remind us of new security threats. These
security issues can be addressed through proper data handling. The cloud server provider can protect the data using encryption and decryption methods, keeping the data in the cloud. In this article, we have suggested some encryption and decryption methods to protect data in the cloud so that an unauthorized person or machine cannot access sensitive data due to the encrypted form.
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