1. Certificateless public key cryptography;Al-riyami,2003
2. Certificateless public key encryption without pairing;Baek,2005
3. Certificateless signcryption;Barbosa,2008
4. Aggregate and verifiably encrypted signatures from bilinear maps;Boneh,2003
5. Multipurpose identity based signcryption: a swiss army knife for identity based cryptography;Boyen,2003