3 PROBLEM STATEMENT
3.1 SYSTEM MODEL:
Representative network architecture for cloud data storage is illustrated in Fig. 1. Three different network entities can be identified as follows:
3.1.1 ADMIN AND USER REGISTRATION
Admin can upload or download the data from the cloud server. To access the cloud the admin should register. After registered it allocates space in the cloud and the user details are stored in database for future authentication.Similarly user can upload or download the data from cloud. To access the cloud, user should register with the Admin. Then Admin will generate a key and distribute it to all the registered users. After registration the Batch auditing scheme is used to check whether the user is authenticated user or not.
After verification the user request the data to the cloud then the cloud server will forward the data and the user can modify the data. Cloud server is the area where the data is available.
3.1.2 ENCRYPTION AND DATA SPLITTING
When the data are uploaded into the cloud…show more content… With these techniques the data encryption and the data decryption techniques are used to ensure the data confidentiality. With our proposed system the method such as user registration, key generation and signature generation are also implemented to provide the data security in cloud. Hence the uploading and modification process can also be done by the multiple users with the three characteristics of secured data such as data integrity, availability and the confidentiality. So that the multiple users can access the data at any time and the data modification can also be done by the authorized person with the signature generation technique and they can also separate and keep the data as sensitive and non sensitive information. With the signature generation and batch auditing methods the multi user modification is also
