Keyphrases
- keyword search
- public key
- proxy re encryption
- proximity search
- relational databases
- security model
- keywords
- provably secure
- search engine
- security analysis
- structured data
- standard model
- cost effective
- object oriented
- xml data
- diffie hellman
- image authentication
- encryption scheme
- keyword queries
- authentication protocol
- query language
- xml documents
- xml keyword search
- search queries
- ciphertext
- signature scheme
- public key cryptography