Keyphrases
- proxy signature
- proxy signature scheme
- blind signature
- original signer
- public key
- trusted third party
- bilinear pairings
- signature scheme
- blind signature scheme
- private key
- public key cryptography
- designated verifier
- key distribution
- key management
- digital signature
- forward secure
- access control
- provably secure
- third party
- standard model
- security analysis
- credit card
- secret key
- security model
- security services
- group communication
- distributed systems
- security properties