Keyphrases
- proxy re encryption
- keyword search
- public key encryption
- security model
- signature scheme
- standard model
- relational databases
- public key
- keywords
- provably secure
- structured data
- search engine
- xml documents
- xml keyword search
- xml data
- keyword queries
- access control
- cca secure
- identity based encryption
- security requirements
- query language
- web search engines
- security analysis
- encryption scheme
- object oriented
- query evaluation
- data model
- data sets