21-01-2013, 12:03 PM
Seminar on Enabling Public Auditability and Data Dynamics for Storage Security in Cloud Computing
1Enabling Public.pdf (Size: 674.67 KB / Downloads: 38)
Basics of Cloud Computing
● Cloud Computing is the use of computing
resources that are delivered as a service over a
network.
● IaaS, PaaS, SaaS, DaaS and StaaS
● Cloud access through Web Browser or
application.
● CSP provides infrastructure, platform, software
and storage services.
Remote Storage in
Cloud Computing
● Storing data in Cloud Data Servers rather than
in a local system.
● Access via Internet.
● Cost saving, Maintenance, Redundancy.
● Popular among small and medium sized
businesses.
● Pay-per-use mechanism.
Security of Data in Cloud
● Data stored on a remote system is vulnerable.
● Encoding information using complex
algorithms.
● Authentication process
● Authorization practices
Data Dynamics and
Public Auditability
● Need of secure methods to preserve data.
● Increasing demand for Cloud Storage.
● Public Auditability and Data Dynamics
● Existing 'PDP' and 'PoR' Schemes.
● PDP : Static Data Storage, RSA based
homomorphic tags used for auditing.
● PoR : Sentinels for Data Auditing
● New scheme for Data Integrity and Dynamics.
Performance Analysis
● Implemented this scheme using 'C'.
● Overall performance of BLS-based
instanciation is more that two times faster than
that of RSA and DPDP schemes.
● But larger Computation Cost at verifier side in
BLS scheme.
● Largest Communication Cost in DPDP.
Conclusion
● TPAuditing is needed in Cloud Computing.
● Storage models were improved by MHT
● Multiple auditing by Bilinear Aggregate
Signature.
● Proposed scheme is highly efficient and
provably secure by Performance Analysis.