Anonymous Authentication for Secure Data Stored on Cloud with Decentralized Access Control

Decentralized storage system for accessing data with anonymous authentication provides more secure user authentication, user revocation and prevents replay attacks. Access control is processed on decentralized KDCs it is being more secure for data encryption. Generated decentralized KDC's are then grouped by (KGC). Our system provides authentication for the user, in which only system authorized
users are able to decrypt, view the stored information. User validations and access control scheme are introduced in decentralized, which is useful for preventing replay attacks and supports modification of data stored in the cloud. The access control scheme is gaining more attention because it is important that only approved users have access to valid examine. Our scheme prevents supports creation, replay
attacks, reading and modify data stored in the cloud. We also address user revocation. The problems of validation, access control, privacy protection should be solved simultaneously. 

Cloud , trusted sub cloud and client to interact with cloud. Once the files are selected only valid users can download and other users can be blocked to access those files. 

System Configuration 

Hardware Requirement 
Processor - Dual Core 
Speed - 1.1 G Hz 
RAM - 512 MB (min) 
Hard - 20 GB 
Key Board - Standard Windows Keyboard 
Mouse - Two or Three Button Mouse 


Software Requirement 
Operating System : Windows xp,7,8
Front End : Java 7 
Technology : Swings,Networking. 
IDE : Eclipse. 
Database : Oracle 10g 

Code for connecting amazon cloud 
AmazonS3 s3 = new AmazonS3Client(new PropertiesCredentials( 
n1bucket.class.getResourceAsStream("AwsCredentials.properties"))); 
System.out.println("==========================================="); 
System.out.println("Getting Started with Amazon S3") 
System.out.println("===========================================\n"); 
s3.createBucket(response);