How do I implement a secure deduplicated cloud storage using OpenStack ? The processes are as follows, please anyone tell me how and where I should implement it ?

I have successfully setup a cloud using openstak.

1. Client actively breaks the file into chunks, then use hashing algorithm to generate keys to encrypt each chunks.
2. A server again encrypt the chunks.
3. Metadata manager stores the keys.
4. Check for duplication when user tries to upload a file using the hash value.
5. If hash value not same, then store the chunk and the cloud storage provider returns a pointer describing the location of the chunk in cloud.

This is overall summary of my project. Please anyone help... Can I do it using Java language ?

If you have any materials related to this please mail me... mail id: soorajpgeorge@gmail.com