The document proposes a decentralized technique called the CAI framework to automatically log any access to data stored in the cloud. This framework uses Java archive (JAR) files to log data access and provide an auditing mechanism. It includes algorithms for identity-based encryption and authentication as well as push and pull modes for generating log records. The system architecture involves multiple server systems running software like Tomcat and MySQL to provide the cloud logging functionality.

1. Ensuring Distributed Accountability for
Data Sharing in the Cloud

2. Introduction
 Cloud Computing
 Features of Cloud Computing
1) Scalability
2)Resource Virtualization

3. Motivation
 Client Fears of Loosing Control on Data.
 Question about (Cloud Service
Provider)CSP reliability
 Significant Barriers for Cloud Computing

4. Related Work
 Information Accountability[1]
 Accountability mechanisms and Privacy
Manager[2]
 Logic for Auditing Accountability in
Decentralized Systems[3]
 Accountable Grid Computing System[4]

5. Cont.
 Security Applications in JAVA using Self-
Depending Objects[SDO][5]
 Proof-Carrying authentication (PCA)[6]
 Identity-Based Encryption[7]
 Current access control mechanism[8]

6. Proposal
 Decentralized Technique
 Data Access automatic logging
 Reliable Log files
 Delivery of log files to Data Owner.
1)Push Mode
2)Pull Mode

7. Hardware Requirement
Two or more systems of following config.
 Processor - Pentium IV onwards
 RAM- 512 MB DD RAM
 Hard Disk- 20 GB

8. System Architecture

9. Software Requirements
 Operating System :Windows95/98/2000/XP
 Application Server : Tomcat5.0/6.X
 Front End : HTML, Java
 Server Sidé Script : Java Server Pages.
 Database : MySQL 5.0
 Database Connectivity : JDBC.
 Cloud Services: Any cloud service provider.

10. Flowchart1

11. Flowchart2

12. Algorithms
 IBE Key Generation Algorithm
 SAML-Based Authentication Algorithm
 Push And Pull Pure Log mode for log record
generation

13. Logging Algorithm

14. Data flow Diagram

15. Use Case Diagram

16. Conclusion
 We proposed innovative approach: CAI
framework and use of JAR file, for
automatically logging any access to the data
in the cloud together with an auditing
mechanism.

17. References
[1] “Information Accountability,” Comm.ACM, vol. 51, no.
6, pp. 82-87, 2008.
[2] “Accountability as a Way Forward for Privacy Protection in
the Cloud,” Proc. First Int’l Conf. Cloud Computing,09.
[3] Logic for Auditing Accountability in Decentralized
Systems,” Proc. IFIP TC1 WG1.7 Workshop Formal Aspects
in Security and Trust , pp. 187-201, 2005.
[4] The Design and Evaluation of Accountable Grid
Computing System,” Proc. 29thIEEE Int’l Conf. Distributed
Computing Systems (ICDCS ’09),pp. 145-154, 2009.

18. References
[5]“Using Self-Defending Objects to Develop Security
Aware Applications in Java,” Proc. 27th Australasian
Conf. Computer Science, vol. 26,pp. 341-349, 2004
[6] An Open Framework for Foundational Proof-
Carrying Code,” Proc. ACM SIGPLAN Int’l Workshop
Types in Languages Design and Implementation, pp.
67-78,2007.
[7]“Towards Accountable Management of Identity and
Privacy: Sticky Policies and Enforceable Tracing
Services,” Proc. Int’l Workshop Database and Expert
Systems Applications (DEXA), pp. 377-382, 2003.

19. References
[8]“Usage Control Enforcement: Present and Future,”
IEEE Security & Privacy, vol. 6, no. 4, pp. 44-
53, July/Aug. 2008.