1. Encrypted Database Final Presentation
Daniel Intskirveli and Johannes Christ

2. Data Owner’s User Interface
open-source
configured with owner’s EDB profile
Interacts with server
serves the user interface

3. Demo Database: 18,245 documents Reuters data dump for 1987
Generated with MapReduce job

4. Search protocol Client Server Authentication request
Use auth. token for communication
Stage 1: query authenticated word set
Verify word set
Stage 2: query tag set
Verify tags
(exit for single-word searches)
Stage 3: query cross tag set
Verify cross tags
List results with matches.
Request for end of session
Verify credentials, send auth. Token
Create search session (UUID)
Store search token as well as public/shared keys retrieved from database
Query word set and send result
Retrieve tags for search token, store them
Send tags for verification
Query cross tag set.
For found tags, find document name.
Send cross tags and document names.
Destroy session for user’s search session cookie.

5. What’s next? Write documentation and make the repository public
Make the use of authenticated sets optional
Implement the database generating algorithm for other platforms
Single-machine process?
Other distributed data processing techniques?
Move inter-process communication away from Java serialization

6. Daniel Intskirveli and Johannes Christ
Thanks! Questions?
Daniel Intskirveli and Johannes Christ