CD Store: Toward Reliable, Secure, and Cost-Efficient Cloud Storage via Convergent Dispersal
Abstract
CD Store: Toward Reliable, Secure, and Cost-Efficient Cloud Storage via Convergent Dispersal,We present CDStore, which disperses users’ backup data across multiple clouds and provides a unified multi-cloud storage solution with reliability, security, and cost-efficiency guarantees. CDStore builds on an augmented secret sharing scheme called convergent dispersal, which supports deduplication by using deterministic content-derived hashes as inputs to secret sharing.
We present the design of CDStore, and in particular, describe how it combines convergent dispersal with two-stage deduplication to achieve both bandwidth and storage savings and be robust against side-channel attacks. We evaluate the performance of our CDStore prototype using real-world workloads on LAN and commercial cloud testbeds. Our cost analysis also demonstrates that CDStore achieves a monetary cost saving of 70% over a baseline cloud storage solution using state-of-the-art secret sharing.
System Configuration
H/W System Configuration
Speed : 1.1 GHz
RAM : 256 MB(min)
Hard Disk : 20 GB
Floppy Drive : 1.44 MB
Key Board : Standard Windows Keyboard
Mouse : Two or Three Button Mouse
Monitor : SVGA
S/W System Configuration
Platform : cloud computing
Operating system : Windows Xp,7,
Server : WAMP/Apache
Working on : Browser Like Firefox, IE
Conclusion
CD Store: Toward Reliable, Secure, and Cost-Efficient Cloud Storage via Convergent Dispersal is a multi-cloud storage system for organizations to outsource backup and archival storage to public cloud vendors, with three goals in mind: reliability, security, and cost efficiency. The core design of CDStore is convergent dispersal, which augments secret sharing with the deduplication capability. CDStore also adopts two-stage deduplication to achieve bandwidth and storage savings and prevent sidechannel attacks. Our cost analysis demonstrates that CDStore achieves significant cost savings via deduplication.
