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1. Cloud Security

2. Cloud Computing
Advantages:
•Security
•Privacy
Disadvantages:
• Backup and Recovery
• Almost Unlimited Storage
• Efficiency and Performance Increasing

3. Cloud Computing Storage Security Issues:
1.Traditional Security problems
2. Law Issue
3. Third party Issue

4. Related Research for Storage Security:
1.Authorization:
2.Encryption:
3. Segmentation:
• Multi-level authorization
• The Face Fuzzy Vault
• RSA Encryption
• AES Encryption
• Hybrid Encryption
• Metadata Based Storage Model
• Multi-cloud Architecture Model
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SERVER SERVER SERVER SERVER
Figure: Segmentation Backup System

5. Figure: Multi-cloud Architecture Model
Table: Metadata Based Storage Model Level