Keyphrases
- standard model
- encryption scheme
- identity based encryption
- provably secure
- identity based signature
- proxy re encryption
- chosen ciphertext
- signcryption scheme
- ciphertext
- security analysis
- signature scheme
- cca secure
- security model
- public key
- data sharing
- secret key
- public key encryption scheme
- diffie hellman
- cost effective
- lightweight
- secret sharing scheme
- blind signature scheme
- lossless compression
- blind signature
- bilinear pairings
- forward secure
- private key
- databases
- hash functions
- data model