The document proposes a safety design for cloud storage. It discusses cloud computing and cloud storage models. It then outlines security issues with cloud computing services including availability, reliability, and user data security. The proposed cloud storage architecture consists of a storage layer, management basis, application interface layer, and access layer. The cloud storage security design model includes storage cloud, control center, user interface, and client. Key technologies involve storage encryption, backup encryption, exchange encryption, and interface security. Applications include deterrent control, preventative control, corrective control, and detective control.

1. “A SAFETY DESIGN OF
CLOUD STORAGE”
SUBMITTED BY:
1. VIJAY S SUTAR 2GI09CS115
2. VISHWANATH S ATHANIKAR 2GI09CS118
UNDER THE GUIDANCE OF:
Prof K.D. HANABARATTI

2. WHAT IS CLOUD ?
Cloud computing is a model for enabling
on-demand network access.
DELIEVERY MODELS
 Software as a Service (SaaS)
 Platform as a Service (PaaS)
 Infrastructure as a Service (IaaS)

3. WHAT IS CLOUD STORAGE ?
It is the resource storage of cloud computing.
Complex system consisting of
 Network devices
 Storage devices
 Servers
 Application software
 Public access interface
Cloud storage is not stored, but a service.

4. SECURITY ISSUES
 Cloud computing service availability
 Cloud computing service reliability
 User data security.
Eg.1. Microsoft's cloud computing platform Azure had to
stop running on March 17, 2009
2.salesforce.com
3.VMware

5. A CLOUD STORAGE ARCHITECTURE
Consists of:
 Storage layer
 Basis of management
 Application Interface Layer
 Access layer

7. CLOUD STORAGE SECURITY DESIGN
A. Cloud Storage Safety Design Model
It consists of four parts
 Storage cloud
 Control center
 User interface
 Client.

9. FUNCTIONALITIES
 Storage encryption
 Backup encryption
 Exchange of encryption
 Interface security
(authentication and access control)

10. CLOUD STORAGE KEY TECHNOLOGIES
• Storage Encryption
Encrypt the user-specified directory or file and then
save.
• Users must be registered to use this technology.
• Registered users can voluntarily choose to use kind of
encryption
 Symmetric cryptosystem DES algorithm
 Asymmetric cryptosystem, RSA algorithm

12. APPLICATIONS
 Deterrent Control
 Preventative Control
 Corrective Control
 Detective Control

13. CONCLUSION
 Cloud storage is rapidly developing cloud storage
security issues are also facing unprecedented
challenges.
 To use cloud storage to a wider range of
applications, not just the technical issues can be
resolved, but also standardization, conscious of the
constraints of laws and regulations and user
compliance

14. REFERENCES
[1] Wangpeng cloud computing of the critical
technology and application instance [M] Beijing:
People's Posts and Telecommunications Press, 2009
[2] Zhang Longli. The cloud storage technology [J].
Telecommunications Science.
2010 (S1) :71-74
[3] Feng Dengguo and so on. Cloud computing
security [J] Journal of Software,
2011, 22 (1) (71-83):
[4] Youchan Zhu, A safety design of cloud storage,
ieeexplore.ieee.org, http://ieeexplore.ieee.org

15. THANK YOU