Cloud Security

What is Cloud Computing?

Cloud computing is the practice of using network of remote servers hosted on the internet to store, manage and process data instead of a local server or a personal computer. Data on cloud is not completely secure from infection since it is accessed through the internet. The benefits of cloud computing are many; the portability of the application where users can work from home, at workplaces, or at client locations is an example. Moving data into the cloud offers great convenience to user since they don’t have to worry about the complexities of direct hardware management.

Encryption of Cloud Data

Most cloud providers use different models to secure cloud data even in transit and at rest 1. However, the cloud providers hold the secret keys on their servers after encryption. This introduces us to a concept known as the “legitimacy of ownership”. Who owns the data? Who keeps the encryption key? This project proposes a model where data will be encrypted using Advance Encryption Standard Algorithm before sending files to the cloud. In addition, Message Digest Algorithm will be used to check the precisionof the data.

Abstract: Using Advance Encryption Standard Algorithm to Secure Cloud Data at Client Side Independent of Cloud Providers

Cloud computing brings a lot of advantages especially in ubiquitous services where everyone can access computer services through the internet. In spite of this, there are key security loop holes that is making users anxious about the safety of migrating to the cloud. This project uses the Advance Standard Encryption Standard Algorithm to encrypt user data at client side before transferring the data to the cloud thereby making encryption key available to only owners of the data. The project also uses Message Digest Algorithm to check for data integrity at client side to know if client’s data has been tempered. The project also employs key management technique and backup design to keep encryption keys safe at client side. 

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