1. Digital signcryption or how to achieve Cost(Signature & Encryption)≪Cost(Signature)+Cost(Encryption);Zheng,1997
2. How to construct efficient signcryption schemes on elliptic curves;Zheng;Information Processing Letters,1998
3. Signcryption schemes with forward secrecy;Jung;Proceeding of WISA,2001
4. A signcryption scheme with signature directly verifiable by public key;Bao,1998
5. Encrypted message authentication by firewalls;Gamage,1999