A Secure Model for Cloud Computing Based Data Storage and Retrieval - Final Year Project Report (CSC-404) 

Abstract

Enterprises usually store data in internal storage and install firewalls to protect against
intruders to access the data. They also standardize data access procedures to prevent
raiders to disclose the information without permission. In cloud computing, the data
will be stored in storage provided by service providers.
Service providers must have a viable way to protect their clients’ data, especially to
prevent the data from disclosure by unauthorized insiders. Storing the data in
encrypted form is a common method of information privacy protection.
If a cloud system is responsible for both tasks on storage and encryption/decryption of
Data, the system administrators may simultaneously obtain encrypted data and
encryption keys.
This allows them to access information without authorization and thus poses a risk to
information privacy. This study proposes a business model for cloud computing based
on the concept of separating the encryption and decryption service from the storage
service
Furthermore, the party responsible for the data storage system must not store data in
Plain text, and the party responsible for data encryption and encryption must delete all
data upon the computation on encryption or decryption is complete.
A CRM (Customer Relationship Management) service is described in this project as
it. example to illustrate the proposed business model.